US4594970A — Marine installation including fuel/oil mixing dev…

Claim 1

Independent Claim 278 words

A marine installation comprising a marine propulsion device including a propulsion unit having a lower unit supporting a propeller and a powerhead including a two-stroke internal combustion engine having means for feeding a fuel/oil mixture to said engine and including a fuel/oil mixture pump having an inlet and being operable to create suction at said inlet, a flexible hose releasably connected to and communicating with said inlet of said fuel/oil mixture pump, and a remote tank having an interior providing a fuel reservoir, having a fitting releasably connected to said flexible hose, having a top wall including a first opening which is adapted to afford filling of fuel into said interior of said tank and which is adapted to removably receive a cap covering said first opening, and a second opening spaced from said first opening, and having an oil storing, oil pumping and fuel/oil mixing device located in said tank and including an upper wall closing said second opening and being secured to said top wall of said tank, and having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping, and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending into said tank from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet communicating with said fuel reservoir, and an outlet communicating with said fitting.

Claim 2

Dependent Claim 278 words

A marine installation comprising a marine propulsion device including a propulsion unit having a lower unit supporting a propeller and a powerhead including a two-stroke internal combustion engine having means for feeding a fuel/oil mixture to said engine and including a fuel/oil mixture pump having an inlet and being operable to create suction at said inlet, a flexible hose releasably connected to and communicating with said inlet of said fuel/oil mixture pump, and a remote tank having an interior providing a fuel reservoir, having a fitting releasably connected to said flexible hose, having a top wall including a first opening which is adapted to afford filling of fuel into said interior of said tank and which is adapted to removably receive a cap covering said first opening, and a second opening spaced from said first opening, and having an oil storing, oil pumping and fuel/oil mixing device located in said tank and including an upper wall closing said second opening and being secured to said top wall of said tank, and having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping, and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending into said tank from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet communicating with said fuel reservoir, and an outlet communicating with said fitting.

Claim 3

Dependent Claim 53 words

A marine installation in accordance with claim 1 wherein said oil pumping and fuel/oil mixing apparatus includes a housing assembly comprising an inlet-side member, an outlet-side member, and a movable piston located between said inlet-side member and said outlet-side member and dividing said housing assembly into an inlet chamber and an outlet chamber.

Claim 4

Dependent Claim 41 words

A marine installation in accordance with claim 2 wherein said inlet-side member includes therein a fuel inlet port communicating with said inlet chamber, and an oil inlet port communicating with said inlet chamber, and wherein said outlet-side member includes said outlet.

Claim 5

Dependent Claim 105 words

A marine installation in accordance with claim 3 wherein said housing assembly further includes an oil pump housing secured to said inlet-side member and including an oil pumping chamber communicating with said first inlet, first check valve means permitting flow from said first inlet to said oil pumping chamber and preventing flow from said oil pumping chamber to said first inlet, an oil outlet port communicating with said oil inlet port in said inlet-side member, and second check valve means permitting flow from said oil pumping chamber to said oil outlet port and preventing flow from said oil outlet port to said oil pumping chamber.

Claim 6

Dependent Claim 58 words

A marine installation in accordance with claim 4 and further including an oil pumping piston extending slidably through said inlet-side member and into said oil pumping chamber in said oil pump housing, said pumping piston being operably associated with said movable piston for effecting reciprocation of said oil pumping piston in response to reciprocation of said movable piston.

Claim 7

Dependent Claim 89 words

A marine installation in accordance with claim 3 wherein said outlet-side member includes a first fuel conduit having a first end terminating in said second inlet and having a second end terminating in a fuel transfer port, and wherein said oil pump housing includes a second fuel conduit having a first end terminating in a fuel inlet port communicating with said fuel transfer port in said outlet-side member and having a second end terminating in a fuel outlet port communicating with said fuel inlet port in said inlet-side member.

Claim 8

Dependent Claim 55 words

A marine installation in accordance with claim 6 wherein said second fuel conduit includes therein, intermediate said fuel inlet port and said fuel outlet port thereof, a valve seat, and a valve member movable relative to said valve seat between opened and closed positions, and means for biasing said valve member to the closed position.

Claim 9

Dependent Claim 59 words

A marine installation in accordance with claim 1 wherein said second inlet includes valve means comprising a valve member normally located in an opened position and movable to a closed position, and means extending into said oil reservoir for displacing said valve member to the closed position in response to a predetermined low oil level in said oil reservoir.

Claim 10

Dependent Claim 61 words

A marine installation in accordance with claim 8 wherein said valve member is fabricated at least in part of metal, and wherein said means for displacing said valve member to the closed position comprises a float having a magnet, whereby when the oil level is at said predetermined level, said magnet attracts and displaces said valve member to the closed position.

Claim 11

Dependent Claim 40 words

A marine installation in accordance with claim 9 wherein said valve means includes a downwardly facing valve seat, and said valve member includes a flexible plastic valve part movable upwardly to the closed position in engagement with said valve seat.

Claim 12

Dependent Claim 29 words

A marine installation in accordance with claim 10 wherein said valve member includes a metallic portion attractable by said magnet when the oil is at said predetermined low level.

Claim 13

Dependent Claim 28 words

A marine installation in accordance with claim 1 wherein said fitting is located on said upper wall, and further including a conduit between said outlet and said fitting.

Claim 14

Dependent Claim 16 words

A marine installation in accordance with claim 12 wherein said conduit extends within said oil reservoir.

Claim 15

Dependent Claim 268 words

A marine installation comprising a boat hull, a stern drive unit supported by said boat hull and including a lower unit located exteriorly of said boat hull and supporting a propeller, and a four-stroke internal combustion engine located interiorly of said boat hull and including means for feeding fuel to said four-stroke engine and including a fuel pump operable to create suction, a remote fuel tank located in said boat hull and having an interior providing a fuel reservoir communicating with said fuel pump, an outboard motor located exteriorly of said boat hull and including a propulsion unit having a lower unit supporting a propeller and a powerhead including a two-stroke internal combustion engine including means for feeding a fuel/oil mixture to said two-stroke engine and including a fuel/oil mixture pump operable to create suction, and an oil storing, oil pumping and fuel/oil mixing device supported on said boat hull in spaced relation from said remote fuel tank and including an upper wall having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping, and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet communicating with said fuel reservoir, and an outlet communicating with said fuel/oil pump.

Claim 16

Dependent Claim 268 words

A marine installation comprising a boat hull, a stern drive unit supported by said boat hull and including a lower unit located exteriorly of said boat hull and supporting a propeller, and a four-stroke internal combustion engine located interiorly of said boat hull and including means for feeding fuel to said four-stroke engine and including a fuel pump operable to create suction, a remote fuel tank located in said boat hull and having an interior providing a fuel reservoir communicating with said fuel pump, an outboard motor located exteriorly of said boat hull and including a propulsion unit having a lower unit supporting a propeller and a powerhead including a two-stroke internal combustion engine including means for feeding a fuel/oil mixture to said two-stroke engine and including a fuel/oil mixture pump operable to create suction, and an oil storing, oil pumping and fuel/oil mixing device supported on said boat hull in spaced relation from said remote fuel tank and including an upper wall having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping, and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet communicating with said fuel reservoir, and an outlet communicating with said fuel/oil pump.

Claim 17

Dependent Claim 53 words

A marine installation in accordance with claim 14 wherein said oil pumping and fuel/oil mixing apparatus includes a housing assembly comprising an inlet-side member, an outlet-side member, and a movable piston located between said inlet-side member and said outlet-side member and dividing said housing assembly into an inlet chamber and an outlet chamber.

Claim 18

Dependent Claim 41 words

A marine installation in accordance with claim 15 wherein said inlet-side member includes therein a fuel inlet port communicating with said inlet chamber, and an oil inlet port communicating with said inlet chamber, and wherein said outlet-side member includes said outlet.

Claim 19

Dependent Claim 105 words

A marine installation in accordance with claim 16 wherein said housing assembly further includes an oil pump housing secured to said inlet-side member and including an oil pumping chamber communicating with said first inlet, first check valve means permitting flow from said first inlet to said oil pumping chamber and preventing flow from said oil pumping chamber to said first inlet, an oil outlet port communicating with said oil inlet port in said inlet-side member, and second check valve means permitting flow from said oil pumping chamber to said oil outlet port and preventing flow from said oil outlet port to said oil pumping chamber.

Claim 20

Dependent Claim 58 words

A marine installation in accordance with claim 17 and further including an oil pumping piston extending slidably through said inlet-side member and into said oil pumping chamber in said oil pump housing, said pumping piston being operably associated with said movable piston for effecting reciprocation of said oil pumping piston in response to reciprocation of said movable piston.

Claim 21

Dependent Claim 89 words

A marine installation in accordance with claim 16 wherein said outlet-side member includes a first fuel conduit having a first end terminating in said second inlet and having a second end terminating in a fuel transfer port, and wherein said oil pump housing includes a second fuel conduit having a first end terminating in a fuel inlet port communicating with said fuel transfer port in said outlet-side member and having a second end terminating in a fuel outlet port communicating with said fuel inlet port in said inlet-side member.

Claim 22

Dependent Claim 54 words

A marine installation in accordance with claim 19 wherein said second fuel conduit includes therein, intermediate said fuel inlet port and said fuel outlet port, a valve seat, and a valve member movable relative to said valve seat between opened and closed positions, and means for biasing said valve member to the closed position.

Claim 23

Dependent Claim 59 words

A marine installation in accordance with claim 14 wherein said second inlet includes valve means comprising a valve member normally located in an opened position and movable to a closed position, and means extending into said oil reservoir for displacing said valve member to the closed position in response to a predetermined low oil level in said oil reservoir.

Claim 24

Dependent Claim 61 words

A marine installation in accordance with claim 21 wherein said valve member is fabricated at least in part of metal, and wherein said means for displacing said valve member to the closed position comprises a float having a magnet, whereby when the oil level is at said predetermined level, said magnet attracts and displaces said valve member to the closed position.

Claim 25

Dependent Claim 40 words

A marine installation in accordance with claim 22 wherein said valve means includes a downwardly facing valve seat, and said valve member includes a flexible plastic valve part movable upwardly to the closed position in engagement with said valve seat.

Claim 26

Dependent Claim 29 words

A marine installation in accordance with claim 23 wherein said valve member includes a metallic portion attractable by said magnet when the oil is at said predetermined low level.

Claim 27

Dependent Claim 28 words

A marine installation in accordance with claim 14 wherein said fitting is located on said upper wall, and further including a conduit between said outlet and said fitting.

Claim 28

Dependent Claim 16 words

A marine installation in accordance with claim 25 wherein said conduit extends within said oil reservoir.

Claim 29

Dependent Claim 220 words

A fuel feeding system comprising an assembly for separately storing fuel and oil, for pumping oil, and for mixing the fuel and oil, said assembly comprising a tank having an interior providing a fuel reservoir, and a top wall including a first opening which is adapted to afford filling of fuel into said interior of the tank and which is adapted to removably receive a cap covering said first opening, an oil storing, oil pumping, and fuel/oil mixing device located in said tank and including an upper wall closing said second opening and being secured to said top wall of said tank, and having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending into said tank from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet communicating with said fuel reservoir, and an outlet, and means communicating with said outlet for generating a suction applied to said outlet.

Claim 30

Dependent Claim 220 words

A fuel feeding system comprising an assembly for separately storing fuel and oil, for pumping oil, and for mixing the fuel and oil, said assembly comprising a tank having an interior providing a fuel reservoir, and a top wall including a first opening which is adapted to afford filling of fuel into said interior of the tank and which is adapted to removably receive a cap covering said first opening, an oil storing, oil pumping, and fuel/oil mixing device located in said tank and including an upper wall closing said second opening and being secured to said top wall of said tank, and having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending into said tank from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet communicating with said fuel reservoir, and an outlet, and means communicating with said outlet for generating a suction applied to said outlet.

Claim 31

Dependent Claim 52 words

A system in accordance with claim 27 wherein said oil pumping and fuel/oil mixing apparatus includes a housing assembly comprising an inlet-side member, an outlet-side member, and a movable piston located between said inlet-side member and said outlet-side member and dividing said housing assembly into an inlet chamber and an outlet chamber.

Claim 32

Dependent Claim 40 words

A system in accordance with claim 28 wherein said inlet-side member includes therein a fuel inlet port communicating with said inlet chamber and an oil inlet port communicating with said inlet chamber, and wherein said outlet-side member includes said outlet.

Claim 33

Dependent Claim 104 words

A system in accordance with claim 29 wherein said housing assembly further includes a oil pump housing secured to said inlet-side member and including an oil pumping chamber communicating with said first inlet, first check valve means permitting flow from said first inlet to said oil pumping chamber and preventing flow from said oil pumping chamber to said first inlet, an oil outlet port communicating with said oil inlet port in said inlet-side member, and second check valve means permitting flow from said oil pumping chamber to said oil outlet port and preventing flow from said oil outlet port to said oil pumping chamber.

Claim 34

Dependent Claim 57 words

A system in accordance with claim 30 and further including an oil pumping piston extending slidably through said inlet-side member and into said oil pumping chamber in said oil pump housing, said pumping piston being operably associated with said movable piston for effecting reciprocation of said oil pumping piston in response to reciprocation of said movable piston.

Claim 35

Dependent Claim 87 words

A system in accordance with claim 29 wherein said outlet-side member includes a first fuel conduit having a first end terminating in said inlet and having a second end terminating in a fuel transfer port, and wherein said oil pump housing includes a second fuel conduit having a first end terminating in a fuel inlet port communicating with said fuel transfer port in said outlet-side member and having a second end terminating in a fuel outlet port communicating with said fuel inlet port in said inlet-side member.

Claim 36

Dependent Claim 53 words

A system in accordance with claim 32 wherein said second fuel conduit includes therein, intermediate said fuel inlet port and said fuel outlet port, a valve seat, and a valve member movable relative to said valve seat between opened and closed positions, and means for biasing said valve member to the closed position.

Claim 37

Dependent Claim 57 words

A system in accordance with claim 27 wherein said second inlet includes valve means comprising a valve member normally located in an opened position and movable to a closed position, and means extending into said oil reservoir displacing said valve member to the closed position in response to a predetermined low oil level in said oil reservoir.

Claim 38

Dependent Claim 60 words

A system in accordance with claim 34 wherein said valve member is fabricated at least in part of metal, and wherein said means for displacing said valve member to the closed position comprises a float having a magnet, whereby when the oil level is at said predetermined level, said magnet attracts and displaces said valve member to the closed position.

Claim 39

Dependent Claim 39 words

A system in accordance with claim 35 wherein said valve means includes a downwardly facing valve seat, and said valve member includes a flexible plastic valve part movable upwardly to the closed position in engagement with said valve seat.

Claim 40

Dependent Claim 28 words

A system in accordance with claim 36 wherein said valve member includes a metallic portion attractable by said magnet when the oil is at said predetermined low level.

Claim 41

Dependent Claim 38 words

A system in accordance with claim 27 and further including a fitting located on said upper wall, a conduit between said outlet and said fitting, and a hose between said fitting and said means for generating a suction.

Claim 42

Dependent Claim 15 words

A system in accordance with claim 38 wherein said conduit extends within said oil reservoir.

Claim 43

Dependent Claim 223 words

An assembly for separately storing fuel and oil, for pumping oil, and for mixing the fuel and oil, said assembly comprising a tank having an interior providing a fuel reservoir, and further having a top wall including a first opening which is adapted to afford filling of fuel into said interior of said tank and which is adapted to removably receive a cap covering said first opening, and having a second opening spaced from said first opening, a fitting on said tank, and an oil storing, oil pumping, and fuel/oil mixing device located in said tank and including an upper wall closing said second opening and being secured to said top wall of said tank, and having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping, and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending into said tank from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet communicating with said fuel reservoir, and an outlet communicating with said fitting.

Claim 44

Dependent Claim 223 words

An assembly for separately storing fuel and oil, for pumping oil, and for mixing the fuel and oil, said assembly comprising a tank having an interior providing a fuel reservoir, and further having a top wall including a first opening which is adapted to afford filling of fuel into said interior of said tank and which is adapted to removably receive a cap covering said first opening, and having a second opening spaced from said first opening, a fitting on said tank, and an oil storing, oil pumping, and fuel/oil mixing device located in said tank and including an upper wall closing said second opening and being secured to said top wall of said tank, and having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping, and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending into said tank from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet communicating with said fuel reservoir, and an outlet communicating with said fitting.

Claim 45

Dependent Claim 52 words

An assembly in accordance with claim 40 wherein said oil pumping and fuel/oil mixing apparatus includes a housing assembly comprising an inlet-side member, an outlet-side member, and a movable piston located between said inlet-side member and said outlet-side member and dividing said housing assembly into an inlet chamber and an outlet chamber.

Claim 46

Dependent Claim 40 words

An assembly in accordance with claim 41 wherein said inlet-side member includes therein a fuel inlet port communicating with said inlet chamber, and an oil inlet port communicating with said inlet chamber, and wherein said outlet-side member includes said outlet.

Claim 47

Dependent Claim 105 words

An assembly in accordance with claim 42 wherein said housing assembly further includes an oil pump housing secured to said inlet side member and including an oil pumping chamber communicating with said first inlet, first check valve means permitting flow from said first inlet to said oil pumping chamber and preventing flow from said oil pumping chamber to said first inlet, an oil outlet port communicating with said oil inlet port in said inlet-side member, and second check valve means permitting flow from said oil pumping chamber to said oil outlet port and preventing flow from said oil outlet port to said oil pumping chamber.

Claim 48

Dependent Claim 57 words

An assembly in accordance with claim 43 and further including an oil pumping piston extending slidably through said inlet-side member and into said oil pumping chamber in said oil pump housing, said pumping piston being operably associated with said movable piston for effecting reciprocation of said oil pumping piston in response to reciprocation of said movable piston.

Claim 49

Dependent Claim 88 words

An assembly in accordance with claim 42 wherein said outlet-side member includes a first fuel conduit having a first end terminating in said second inlet and having a second end terminating in a fuel transfer port, and wherein said oil pump housing includes a second fuel conduit having a first end terminating in a fuel inlet port communicating with said fuel transfer port in said outlet-side member, and having a second end terminating in a fuel outlet port communicating with said fuel inlet port in said inlet-side member.

Claim 50

Dependent Claim 53 words

An assembly in accordance with claim 45 wherein said second fuel conduit includes therein, intermediate said fuel inlet port and said fuel outlet port, a valve seat, and a valve member movable relative to said valve seat between opened and closed positions, and means for biasing said valve member to the closed position.

Claim 51

Dependent Claim 58 words

An assembly in accordance with claim 40 wherein said inlet includes valve means comprising a valve member normally located in an open position and movable to a closed position, and means extending into said oil reservoir and operable for displacing said valve member to the closed position in response to a predetermined low oil level in said reservoir.

Claim 52

Dependent Claim 60 words

An assembly in accordance with claim 47 wherein said valve member is fabricated at least in part of metal, and wherein said means for displacing said valve member to the closed position comprises a float having a magnet, whereby when the oil level is at said predetermined level, said magnet attracts and displaces said valve member to the closed position.

Claim 53

Dependent Claim 39 words

An assembly in accordance with claim 48 wherein said valve means includes a downwardly facing valve seat, and said valve member includes a flexible plastic valve part movable upwardly to the closed position in engagement with said valve seat.

Claim 54

Dependent Claim 28 words

An assembly in accordance with claim 49 wherein said valve member includes a metallic portion attractable by said magnet when the oil is at said predetermined low level.

Claim 55

Dependent Claim 27 words

An assembly in accordance with claim 40 wherein said fitting is located on said upper wall, and further including a conduit between said outlet and said fitting.

Claim 56

Dependent Claim 15 words

An assembly in accordance with claim 51 wherein said conduit extends within said oil reservoir.

Claim 57

Dependent Claim 120 words

An oil storing, oil pumping, and fuel/oil mixing device including an upper wall having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping, and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet adapted to communicate with a fuel source, and an outlet for delivering the fuel/oil mixture.

Claim 58

Dependent Claim 120 words

An oil storing, oil pumping, and fuel/oil mixing device including an upper wall having therein an opening which is adapted to afford filling of oil into said oil storing, oil pumping, and fuel/oil mixing device and which is adapted to removably receive a cap covering said opening in said upper wall, an endless wall depending from said upper wall to partially define an oil reservoir communicating with said upper wall opening, and an oil pumping and fuel/oil mixing apparatus secured to said depending wall to form the bottom of said oil reservoir and including a first inlet communicating with said oil reservoir, a second inlet adapted to communicate with a fuel source, and an outlet for delivering the fuel/oil mixture.

Claim 59

Dependent Claim 59 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 53 wherein said oil pumping and fuel/oil mixing apparatus includes a housing assembly comprising an inlet-side member, an outlet-side member, and a movable piston located between said inlet-side member and said outlet-side member and dividing said housing assembly into an inlet chamber and an outlet chamber.

Claim 60

Dependent Claim 47 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 54 wherein said inlet-side member includes therein a fuel inlet port communicating with said inlet chamber, and an oil inlet port communicating with said inlet chamber, and wherein said outlet-side member includes said outlet.

Claim 61

Dependent Claim 111 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 55 wherein said housing assembly further includes an oil pump housing secured to said inlet-side member and including an oil pumping chamber communicating with said first inlet, first check valve means permitting flow from said first inlet to said oil pumping chamber and preventing flow from said oil pumping chamber to said first inlet, an oil outlet port communicating with said oil inlet port in said inlet-side member, and second check valve means permitting flow from said oil pumping chamber to said oil outlet port and preventing flow from said oil outlet port to said oil pumping chamber.

Claim 62

Dependent Claim 65 words

An oil storing, oil pumping and fuel oil mixing device in accordance with claim 56 and further including an oil pumping piston extending slidably through said inlet-side member and into said oil pumping chamber in said oil pump housing, said pumping piston being operably associated with said movable piston for effecting reciprocation of said oil pumping piston in response to reciprocation of said movable piston.

Claim 63

Dependent Claim 94 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 55 wherein said outlet-side member includes a first fuel conduit having a first end terminating in said second inlet and having a second end terminating in a transfer port and wherein said oil pump housing includes a second fuel conduit having a first end terminating in a fuel inlet port communicating with said fuel transfer port in said outlet-side member, and having a second end terminating in a fuel outlet port communicating with said fuel inlet port in said inlet-side member.

Claim 64

Dependent Claim 60 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 58 wherein said second fuel conduit includes therein, intermediate said fuel inlet port and said fuel outlet port, a valve seat, and a valve member movable relative to said valve seat between opened and closed positions, and means for biasing said valve member to the closed position.

Claim 65

Dependent Claim 67 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 53 wherein said second inlet includes valve means comprising a valve member normally located in an opened position and movable to a closed position, and means extending into said oil reservoir and operable for displacing said valve member to the closed position in response to a predetermined low oil level in said oil reservoir.

Claim 66

Dependent Claim 67 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 60 wherein said valve member is fabricated at least in part of metal, and wherein said means for displacing said valve member to the closed position comprises a float having a magnet, whereby when the oil level is at said predetermined level, said magnet attracts and displaces said valve member to the closed position.

Claim 67

Dependent Claim 46 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 61 wherein said valve means includes a downwardly facing valve seat, and said valve member includes a flexible plastic valve part movable upwardly to the closed position in engagement with said valve seat.

Claim 68

Dependent Claim 35 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 62 wherein said valve member includes a metalic portion attractable by said magnet when the oil is at said predetermined low level.

Claim 69

Dependent Claim 35 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 53 and further including a fitting located on said upper wall, and further including a conduit between said outlet and said fitting.

Claim 70

Dependent Claim 22 words

An oil storing, oil pumping and fuel/oil mixing device in accordance with claim 64 wherein said conduit extends within said oil reservoir.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1989-06-16	1989-12-16	1990-06-17	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1993-06-16	1993-12-16	1994-06-17	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1997-06-16	1997-12-16	1998-06-17	$7700.00	Window Closed / Lapsed

Marine installation including fuel/oil mixing device

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag