US3799347A — Bidirectional container for oil filter

Claim 1

Independent Claim 276 words

A receptacle apparatus for use in a fluid flow system wherein fluid is to be cleaned by a filter element within the receptacle: a. A closed housing having a filter element receiving cavity therein; b. a pair of openings adapted to be connected into a fluid flow system at spaced locations of said housing for introducing and removing fluid from said housing; c. first means within said housing and adjacent to the filter receiving cavity therein for directing flow of fluid introduced through one of said openings toward a selected volume with respect to said cavity; d. a second means cooperatively arranged within said housing and functioning in a manner similar to said first means for directing fluid flow in like manner between the remaining one of said openings and said cavity; e. said first and second means each having an alternatively selected and operable path therethrough for conducting fluid flow from said cavity to one of the two openings in said housing; f. encircling check valve means within said housing and extending at least partially about and adjacent to said filter element receiving cavity and operatively associated with each of said first and second means said first and second means functioning in conjunction with said check valve means to controllably direct flow from one of said openings serving as an inlet to the selected volume of said cavity such that flow through said cavity and a suitable filter element placed therein is achieved without regard to entry of the fluid at either opening thereof, and also directing fluid flow from said cavity to the other of said openings serving as an outlet from said housing.

Claim 2

Dependent Claim 276 words

A receptacle apparatus for use in a fluid flow system wherein fluid is to be cleaned by a filter element within the receptacle: a. A closed housing having a filter element receiving cavity therein; b. a pair of openings adapted to be connected into a fluid flow system at spaced locations of said housing for introducing and removing fluid from said housing; c. first means within said housing and adjacent to the filter receiving cavity therein for directing flow of fluid introduced through one of said openings toward a selected volume with respect to said cavity; d. a second means cooperatively arranged within said housing and functioning in a manner similar to said first means for directing fluid flow in like manner between the remaining one of said openings and said cavity; e. said first and second means each having an alternatively selected and operable path therethrough for conducting fluid flow from said cavity to one of the two openings in said housing; f. encircling check valve means within said housing and extending at least partially about and adjacent to said filter element receiving cavity and operatively associated with each of said first and second means said first and second means functioning in conjunction with said check valve means to controllably direct flow from one of said openings serving as an inlet to the selected volume of said cavity such that flow through said cavity and a suitable filter element placed therein is achieved without regard to entry of the fluid at either opening thereof, and also directing fluid flow from said cavity to the other of said openings serving as an outlet from said housing.

Claim 3

Dependent Claim 156 words

The invention of claim 1 wherein said first means comprises: a. a removable insert adapted to be slidably positioned within said housing; b. said insert having a cooperative mating surface for engaging a suitable filter Element therein to position, and support such an element within said housing; c. there being a passage in communication with the central portions of said cavity and adapted to communicate from the axis of such a filter element; d. a valve seat in communication with said passage; e. means for mounting said check valve means in cooperative relationship to said valve seat for opening on the occurrence of fluid flow through said passage from the vicinity of said cavity and the filter element therein toward said valve seat; and, f. said insert having an outlet means on the opposite side of said valve seat from said check valve means for directing flow toward the opening in said housing nearer said insert.

Claim 4

Dependent Claim 17 words

openings near the outer periphery of said planar member to permit the passage of fluid flow therethrough;

Claim 5

Dependent Claim 17 words

openings near the outer periphery of said planar member to permit the passage of fluid flow therethrough;

Claim 6

Dependent Claim 16 words

a closed wall tubular member supported by said planar member and having upper and lower ends;

Claim 7

Dependent Claim 16 words

a closed wall tubular member supported by said planar member and having upper and lower ends;

Claim 8

Dependent Claim 53 words

The invention of claim 2 wherein said insert further includes a generally transversely extending flange member for aligning and positioning said insert within said housing and said flange member incorporates openings therein having a cross sectional area equal to or greater than that of the opening in said housing for introducing fluid thereto.

Claim 9

Dependent Claim 52 words

The invention of claim 3 wherein said flange member is supported on a cylindrical walled member which is closed to communication thereacross such that said closed member in cooperation with said transversely extending member directs fluid flow introduced at the opening in said housing toward the outer edge of said cavity therein.

Claim 10

Dependent Claim 36 words

shoulder means carried on said lower end of said tubular member and defining an abutting supportive shoulder for contact against such a filter element as might be placed in said cavity of said tubular member; and,

Claim 11

Dependent Claim 36 words

shoulder means carried on said lower end of said tubular member and defining an abutting supportive shoulder for contact against such a filter element as might be placed in said cavity of said tubular member; and,

Claim 12

Dependent Claim 28 words

The invention of claim 4 including a second generally transversely extending member having openings therein, said first and second members aligning said inserts with respect to said housing.

Claim 13

Dependent Claim 105 words

said check valve means being arranged with respect to the upper end on said tubular member to prevent entry of fluid from said opening in said end plate, said check valve means and said upper end of said tubular member cooperating to direct fluid flow introduced at the opening immediately adjacent thereto toward the outer openings in said planar member such that said fluid flow is directed to the outer side of a filter element placed within said cavity; and, d. a second insert similar to said first insert and cooperatively arranged at the opposite end of said cylindrical tubular member from said first insert.

Claim 14

Dependent Claim 105 words

said check valve means being arranged with respect to the upper end on said tubular member to prevent entry of fluid from said opening in said end plate, said check valve means and said upper end of said tubular member cooperating to direct fluid flow introduced at the opening immediately adjacent thereto toward the outer openings in said planar member such that said fluid flow is directed to the outer side of a filter element placed within said cavity; and, d. a second insert similar to said first insert and cooperatively arranged at the opposite end of said cylindrical tubular member from said first insert.

Claim 15

Dependent Claim 15 words

The invention of claim 1 wherein said first and second means both comprise similar structures.

Claim 16

Dependent Claim 241 words

The invention of claim 1 wherein said first means includes: a. a cylindrical housing; b. a transversely extending end plate having a centrally located opening therein, said end plate being adapted to be connected to one end of said cylindrical housing in a sealing relationship thereto; c. spacer means adapted to be inserted in said housing and extending a predetermined distance therealong; d. a transversely extending planar member positioned by said spacer means, said planar member having a plurality of openings therein near the outer periphery; e. a closed tubular member connected to said planar member and extending therefrom and generally concentrically arranged within said housing; f. a shoulder carried at the lower end of said tubular member and extending transversely of said housing, said shoulder being adapted to be contacted against and defining a plane of support for a filter element inserted in said cavity within said housing; g. said shoulder forming a seal cooperative with said filter element such that fluid flowing on the exterior of said tubular member is exposed to the outside of said filter element and must pass therethrough in the filtration of the fluid flow; h. a centrally located opening in said planar member; i. a flat washer received within said opening which closes same; j. a stem fixedly supported by said planar member and slidably receiving said washer thereon; and, k. a valve seat cooperative with said washer to serve as a check valve.

Claim 17

Dependent Claim 135 words

The invention of claim 7 further including: a. a coil spring received within said tubular member and captured therein by said shoulder at one end and a slidably movable cap means positioned within said tubular member and captured therein by said transversely extending planar member; b. a first set of openings in said tubular member; c. a second set of openings in said cap member, said first and second set of openings being arranged to provide fluid communication therethrough when pressure bears on said cap member against the spring force and moves said cap member to a position aligning the openings of said cap member and said tubular member; and, d. said first and second set of openings being further arranged to deny fluid communication therEthrough when said spring is in its normal extended position.

Claim 18

Dependent Claim 51 words

The invention of claim 7 further including a second transversely extending planar member surrounding said tubular member cooperating with said first planar member to align said tubular member within said housing and further having a plurality of openings in the outer periphery for communicating fluid to the cavity within said housing.

Claim 19

Dependent Claim 86 words

The invention of claim 1 wherein said housing includes: a. a cylindrical tubular member being hollow and open at both ends; b. a first and second end plate adapted to join with said housing to define therein said cavity, said first and second end plates having centrally located openings therein one of which is to serve as an inlet and the other of which is to serve as an outlet; c. a first insert adapted to be positioned adjacent one of said end plates and comprising:

Claim 20

Dependent Claim 34 words

The invention of claim 10 wherein said check valve means is mounted on a stem and a spring is received on said stem tending to urge said check valve means against said upper end.

Claim 21

Dependent Claim 36 words

The invention of claim 1 further including an encircling ring-like member adapted to be positioned in an encircling manner about a filter element within said cavity and extending toward the inner wall of said closed housing.

Claim 22

Dependent Claim 209 words

A receptacle apparatus for use in a fluid flow system wherein fluid is to be cleaned by a filter element within the receptacle; a closed housing having a filter element receiving cavity therein; a pair of openings adapted to be connected into a fluid flow system at spaced locations of said housing for introducing and removing fluid from said housing; first means within said housing and adjacent to said filter receiving cavity therein for directing the flow of fluid introduced through one of said openings toward a selected volume with respect to said cavity; a second means cooperatively arranged within said housing and functioning in a manner similar to said first means for directing fluid flow from said cavity through the remaining one of said openings serving as an outlet; said first and second means having an alternatively selected and operable path therethrough for conducting fluid flow from said cavity to one of the two openings in said housing; and, fluid by-pass means extending between said openings and rendered operative on fluid flow exceeding a predetermined level, said by-pass means diverting a portion of the fluid flow between said openings at a point upstream of said filter element receiving cavity into a by-pass fluid flow path between said openings.

Claim 23

Dependent Claim 209 words

A receptacle apparatus for use in a fluid flow system wherein fluid is to be cleaned by a filter element within the receptacle; a closed housing having a filter element receiving cavity therein; a pair of openings adapted to be connected into a fluid flow system at spaced locations of said housing for introducing and removing fluid from said housing; first means within said housing and adjacent to said filter receiving cavity therein for directing the flow of fluid introduced through one of said openings toward a selected volume with respect to said cavity; a second means cooperatively arranged within said housing and functioning in a manner similar to said first means for directing fluid flow from said cavity through the remaining one of said openings serving as an outlet; said first and second means having an alternatively selected and operable path therethrough for conducting fluid flow from said cavity to one of the two openings in said housing; and, fluid by-pass means extending between said openings and rendered operative on fluid flow exceeding a predetermined level, said by-pass means diverting a portion of the fluid flow between said openings at a point upstream of said filter element receiving cavity into a by-pass fluid flow path between said openings.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-03-25	1977-09-24	1978-03-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-03-25	1981-09-24	1982-03-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-03-25	1985-09-24	1986-03-26	$7700.00	Window Closed / Lapsed

Bidirectional container for oil filter

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