Fluid dispensing nozzle

Claim 2

A fluid dispensing nozzle including a casing defining a flow passage having an inlet and an outlet; a main valve in said casing for selectively opening and closing said flow passage, said main valve including a valve stem slidably mounted in said casing; a manually operable lever engaging said valve stem for operating said main valve; an automatic high-level shut-off means for disabling said lever and shutting said main valve in response to filling of a tank or the like with said fluid, said shut-off means including a plunger slidably mounted in said casing; a hole extending transversely through said plunger at a lower end thereof; a pivot pin extending through said hole in said plunger and pivotally mounting said plunger to the forward end of said lever; by and yoke means extending upwardly from said pivot pin on opposite sides of said plunger for preventing application to said plunger, adjacent said hole through said plunger, of a substantial bending moment sufficient to break said plunger by transverse motion of said lever.

Claim 3

The nozzle of claim 1 wherein the nozzle includes a hand guard, side walls of said hand guard extending around each end of the lever on both transverse sides of the lever.

Claim 4

The nozzle of claim 1 wherein the yoke means comprises means for transfering a bending moment caused by transverse motion of the lever to a part of the plunger above the hole in the plunger.

Claim 5

The nozzle of claim 1 wherein said lever and said yoke means are so constructed and arranged that exertion of a transverse force on the lever will cause the lever to bend before the plunger breaks.

Claim 6

The nozzle of claim 2 wherein the yoke means extends slightly below the end of the plunger, the yoke means resting on a lower surface of the hand guard when the plunger is in its lowered position.

Claim 7

The nozzle of claim 5 wherein the side walls of the hand guard also prevent excessive movement of the yoke means.

Claim 8

The nozzle of claim 6 wherein the lever is formed of sheet metal and includes a pair of side walls surrounding the lower end of the plunger, the yoke means surrounds the side walls of the lever, and the pivot pin passes through the hole in the plunger, through corresponding holes in the side walls of the lever, and through corresponding holes in the yoke means.

Claim 9

The nozzle of claim 1 wherein the yoke means includes upper spacer means, mounted on the plunger, for limiting upward movement of the plunger.

Claim 10

The nozzle of claim 1 wherein the plunger and the yoke means are formed of an acetal resin.

Claim 11

A fluid dispensing nozzle including a casing defining a flow passage having an inlet and an outlet; a main valve in said casing for selectively opening and closing said flow passage, said main valve including a valve stem slidably mounted in said casing; an automatic high-level shut-off means for shutting said main valve in response to filling of a tank or the like with said fluid, said shut-off means including a plunger slidably mounted in said casing, a hole extending transversely through said plunger at a lower end thereof; a manually operable lever engaging said valve stem for operating said main valve, said lever including a pair of side walls straddling said lower end of said plunger; openings extending through said pair of side walls of said lever in register with said hole in said plunger; a pivot pin extending through said hole in said plunger and said openings in said lever, said pivot pin pivotally mounting said plunger to a forward end of said lever; and a hand guard, side walls of said hand guard extending around each end of said lever on both transverse sides of said lever, characterized by a yoke, said yoke including a pair of legs extending between said side walls of said lever and said side walls of said hand guard, said yoke being constructed and arranged to prevent application to said plunger, adjacent said hole through said plunger, of a substantial bending moment sufficient to break said plunger by transverse motion of said lever.

Claim 12

A fluid dispensing nozzle including a casing defining a flow passage having an inlet and an outlet; a main valve in said casing for selectively opening and closing said flow passage, said main valve including a valve stem slidably mounted in said casing; an automatic high-level shut-off means for shutting said main valve in response to filling of a tank or the like with said fluid, said shut-off means including a plunger slidably mounted in said casing, a hole extending transversely through said plunger at a lower end thereof; a manually operable lever engaging said valve stem for operating said main valve, said lever including a pair of side walls straddling said lower end of said plunger; openings extending through said pair of side walls of said lever in register with said hole in said plunger; a pivot pin extending through said hole in said plunger and said openings in said lever, said pivot pin pivotally mounting said plunger to a forward end of said lever; and a hand guard, side walls of said hand guard extending around each end of said lever on both transverse sides of said lever, characterized by a yoke, said yoke including a pair of legs extending between said side walls of said lever and said side walls of said hand guard, said yoke being constructed and arranged to prevent application to said plunger, adjacent said hole through said plunger, of a substantial bending moment sufficient to break said plunger by transverse motion of said lever.

Claim 13

The nozzle of claim 10 wherein said yoke includes upper spacer means, mounted on said plunger above said hole in said plunger, for limiting upward movement of said plunger, said legs being formed integrally with said upper spacer means, said legs transfering a bending moment caused by transverse motion of said lever to said upper spacer means, hence to a part of said plunger above said hole in said plunger.

Claim 14

The nozzle of claim 11 further including holes extending through said legs of said yoke in register with said hole in said plunger, said pivot pin extending through said holes in said legs.

Claim 15

The nozzle of claim 10 wherein said side walls of said hand guard prevent excessive movement of said yoke and said plunger.

Claim 16

The nozzle of claim 10 wherein said lever is formed of sheet metal, and wherein exertion of a transverse force on said the lever will cause said lever to bend before said plunger breaks.

Claim 17

The nozzle of claim 10 wherein said legs of said yoke extend slightly below said end of said plunger, said yoke resting on a lower surface of said hand guard when said plunger is in its lowered position.

Claim 18

The nozzle of claim 10 wherein said plunger is formed of an acetal resin.