US3835899A — Liquid dispensing nozzle

Claim 1

Independent Claim 224 words

An automatic shut-off nozzle comprising a body having an inlet and an outlet, a valve in the body controlling flow of liquid from the inlet to the outlet, manual operated means controlling the operation of the valve, a spout communicating with the outlet, said spout being insertable into a tank through an opening therein to allow the liquid to be dispensed therein, release means movable in one direction to release the manual operated means in response to either of two conditions existing in the tank and acting on the manual operated means to allow closing of the valve and stoppage of liquid flow, the conditions being build-up of vapor pressure to a predetermined vapor pressure and liquid reaching a predetermined level, a first means communicating with the tank and responsive to either of the conditions existing in the tank, the first means being connected to said release means to cause movement of the release means in the one direction in response to only one of the conditions existing in the tank, and a second means communicating with the tank and responsive only to the other of the conditions existing in the tank, the second means being connected to said release means to cause movement of the release means in the same direction in response to the other of the conditions existing in the tank.

Claim 2

Dependent Claim 224 words

An automatic shut-off nozzle comprising a body having an inlet and an outlet, a valve in the body controlling flow of liquid from the inlet to the outlet, manual operated means controlling the operation of the valve, a spout communicating with the outlet, said spout being insertable into a tank through an opening therein to allow the liquid to be dispensed therein, release means movable in one direction to release the manual operated means in response to either of two conditions existing in the tank and acting on the manual operated means to allow closing of the valve and stoppage of liquid flow, the conditions being build-up of vapor pressure to a predetermined vapor pressure and liquid reaching a predetermined level, a first means communicating with the tank and responsive to either of the conditions existing in the tank, the first means being connected to said release means to cause movement of the release means in the one direction in response to only one of the conditions existing in the tank, and a second means communicating with the tank and responsive only to the other of the conditions existing in the tank, the second means being connected to said release means to cause movement of the release means in the same direction in response to the other of the conditions existing in the tank.

Claim 3

Dependent Claim 23 words

The nozzle according to claim 1 in which said first means comprises a first diaphragm and said second means comprises a second diaphragm.

Claim 4

Dependent Claim 37 words

The nozzle according to claim 2 in which said first diaphragm forms a wall of a first chamber communicating with the tank and said second diaphragm forms a wall of a second chamber communicating with the tank.

Claim 5

Dependent Claim 52 words

The nozzle according to claim 3 in which the tank is a sealed tank being filled, said second diaphragm responding only to the predetermined vapor pressure in the tank, and said second means includes means cooperating with said second diaphragm to select the predetermined vapor pressure to which said second means responds.

Claim 6

Dependent Claim 74 words

The nozzle according to claim 3 in which mounting means for said second diaphragm includes means to connect said second diaphragm to the release means and mounting means for said first diaphragm includes means to connect said first diaphragm to said second means to move said second diaphragm in the direction in which said second diaphragm moves the release means in the one direction only when said first diaphragm responds to the one condition.

Claim 7

Dependent Claim 62 words

The nozzle according to claim 5 in which said connecting means between said first diaphragm and said second means comprises means to form a rigid connection when said first diaphragm moves in response to the one condition in the tank and means to render the rigid connection ineffective when said first diaphragm moves in response to the other condition in the tank.

Claim 8

Dependent Claim 98 words

The nozzle according to claim 5 in which said connecting means between said first diaphragm and said second means comprises a first member attached to said first diaphragm, a second member attached to said second diaphragm, resilient means to allow said first member to move relative to said second member when said first diaphragm moves in response to the other condition in the tank, and said first member and said second member having cooperating means to move said second member with said first member when said first diaphragm moves in response to the one condition in the tank.

Claim 9

Dependent Claim 39 words

The nozzle according to claim 7 in which said cooperating means of said first and second members and said resilient means cooperate together to allow said second diaphragm to move in response to the other condition in the tank.

Claim 10

Dependent Claim 31 words

The nozzle according to claim 8 in which said second member includes means to determine the predetermined pressure at which said second diaphragm moves the release means in the single direction.

Claim 11

Dependent Claim 38 words

The nozzle accordinG to claim 1 wherein the spout has means thereon to seal the opening in the tank in which said spout is disposed to fill the tank, and means to remove vapors from the sealed tank.

Claim 12

Dependent Claim 181 words

The nozzle according to claim 10 in which said first means includes a first diaphragm movable in one direction in response to the liquid in the sealed tank reaching the predetermined level and in the opposite direction in response to the vapor pressure in the sealed tank exceeding the predetermined pressure, said second means includes a second diaphragm movable in the one direction in response to the vapor pressure in the sealed tank exceeding the predetermined pressure, means cooperating with said second diaphragm and said release means to move said release means to the position in which flow to said spout is stopped when said second diaphragm moves in the one direction in response to the vapor pressure exceeding the predetermined pressure, and means to connect said first diaphragm to said second diaphragm to cause movement of said second diaphragm with said first diaphragm only when said first diaphragm moves in the one direction to move said release means to the position in which flow to said spout is stopped when the liquid in the sealed tank reaches the predetermined level.

Claim 13

Dependent Claim 138 words

The nozzle according to claim 11 including a first chamber communicating with the sealed tank and having said first diaphragm form a wall thereof, means to create a flow of air from the sealed tank through said first chamber when said operated means is positioned to allow liquid flow from said inlet to said outlet until the liquid in the sealed tank reaches the predetermined level, said creating means also allowing the vapor pressure in the sealed tank to communicate with said first chamber, a second chamber communicating with the tank to cause the vapor pressure in the sealed tank to exist in said second chamber and having said second diaphragm form a wall thereof, said first diaphragm communicating with the atmosphere on its exterior side, and said second diaphragm communicating with the atmosphere on its exterior side.

Claim 14

Dependent Claim 100 words

The nozzle according to claim 12 in which said means connecting said first diaphragm to said second diaphragm includes a first member attached to said first diaphragm, a second member attached to said second diaphragm, and said first and second members having cooperating means to cause said second diaphragm to be moved by said first diaphragm only when said first diaphragm moves in the one direction and to allow said second diaphragm to move in the one direction when the vapor pressure in the sealed tank exceeds the predetermined value irrespective of the direction of movement of said first diaphragm.

Claim 15

Dependent Claim 65 words

The nozzle according to claim 10 in which said vapor removal means includes a tube disposed within said spout, said spout having an opening in its wall in communication with one end of said tube and disposed within the sealed tank when said spout is disposed therein, and means communicating with the other end of said tube to receive the vapors from the sealed tank.

Claim 16

Dependent Claim 43 words

The nozzle according to claim 14 in which said sealing means includes means to seal said opening in the wall of said spout when said spout is not disposed in a tank, said sealing means for said opening being supported on said spout.

Claim 17

Dependent Claim 53 words

The nozzle according to claim 15 in which said spout has means supported thereon to retain said spout within the opening in the tank irrespective of whether the nozzle is held and said supported means being disposed adjacent said opening in the wall of said spout but closer to the discharge end thereof.

Claim 18

Dependent Claim 42 words

The nozzle according to claim 16 including means continuously urging said sealing means for said opening in the wall of said spout to its sealing position and said supported means limiting the movement of said sealing means by said continuous urging means.

Claim 19

Dependent Claim 47 words

The nozzle according to claim 10 in which said sealing means includes a seal slidably mounted on The exterior of said spout and means to continuously urge said seal against the tank to seal the opening in the tank when said spout is disposed in the tank.

Claim 20

Dependent Claim 44 words

The nozzle according to claim 18 in which said spout has means supported thereon to retain said spout within the opening in the tank irrespective of whether the nozzle is held and said supported means limits the movement of said seal along said spout.

Claim 21

Dependent Claim 17 words

The nozzle according to claim 10 in which said sealing means is slidably supported on said spout.

Claim 22

Dependent Claim 31 words

The nozzle according to claim 10 in which said spout has means supported thereon to retain said spout within the opening in the tank irrespective of whether the nozzle is held.

Claim 23

Dependent Claim 52 words

The nozzle according to claim 18 in which said seal has an upper portion that continuously engages the exterior of said spout and a lower portion that surrounds the opening in the tank in sealing relation thereto irrespective of the axial disposition of said spout relative to the opening in the tank.

Claim 24

Dependent Claim 56 words

The nozzle according to claim 20 in which said sealing means includes a seal having an upper portion that continuously engages the exterior of said spout and a lower portion that surrounds the opening in the tank in sealing relation thereto irrespective of the axial disposition of said spout relative to the opening in the tank.

Claim 25

Dependent Claim 41 words

The nozzle according to claim 14 wherein the nozzle has a guard thereon, a conduit through the guard, the conduit communicating with the vapor receiving means at one end thereof, the conduit having another end communicating with a vapor recovery means.

Claim 26

Dependent Claim 35 words

The nozzle according to claim 21 wherein the supporting means comprises a collar fixedly mounted on the spout, the collar having a lip thereon engaging the opening in the tank and retaining the nozzle therein.

Claim 27

Dependent Claim 94 words

The nozzle according to claim 10 wherein the seal means comprises a ring of sealing material slidably mounted near the free end of the spout, the ring having an upstanding lip in the center portion, the lip having an inner surface engaging the spout, a collar fixedly mounted on the spout inwardly of the ring, a coil spring between the collar and the ring normally forcing the ring toward the free end of the spout, a second collar fixedly mounted on the spout outwardly of the ring and holding the ring on the spout.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-09-16	1978-03-18	1978-09-17	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-09-16	1982-03-18	1982-09-17	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-09-16	1986-03-18	1986-09-17	$7700.00	Window Closed / Lapsed

Liquid dispensing nozzle

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