US3856043A — Pressure responsive fluid valve assembly

Claim 1

Independent Claim 275 words

A fluid valve assembly comprising; a housing; means in the housing for defining a valve capable of being opened and closed, said valve having a pair of valve members, one of which is movable, each of the valve members having a working face and the working face of at least of one said valve members has a tapered configuration to define therebetween a transversely wedge-shaped annular space having a maximum separation at the outer periphery in the range of 0.0001 to 0.01 inch, when the valve members are closed; said housing having inlet means for permitting a flow of fluid thereinto and to a location adjacent to the outer peripheries of the working faces; one of the valve members having a centrally located orifice extending thereinto from its working face, the working faces being engageable with each other near the orifice to close the valve, the orifice being closed when the valve is closed; the distance between the orifice and the effective outer periphery of each of the working faces being at least 1.5 times the radius of the orifice; said housing having a space for receiving a device operable to bias said members toward and into engagement with each other, said wedge-shaped space being in fluid communication with said location so that fluid pressure can cause the valve members to separate from each other when the fluid is at said location to thereby open the valve, whereby the fluid can flow from said location, through said wedge-shaped space past said working faces, and into and through said orifices; and means coupled with the housing for permitting a flow of fluid out of said orifice.

Claim 2

Dependent Claim 275 words

A fluid valve assembly comprising; a housing; means in the housing for defining a valve capable of being opened and closed, said valve having a pair of valve members, one of which is movable, each of the valve members having a working face and the working face of at least of one said valve members has a tapered configuration to define therebetween a transversely wedge-shaped annular space having a maximum separation at the outer periphery in the range of 0.0001 to 0.01 inch, when the valve members are closed; said housing having inlet means for permitting a flow of fluid thereinto and to a location adjacent to the outer peripheries of the working faces; one of the valve members having a centrally located orifice extending thereinto from its working face, the working faces being engageable with each other near the orifice to close the valve, the orifice being closed when the valve is closed; the distance between the orifice and the effective outer periphery of each of the working faces being at least 1.5 times the radius of the orifice; said housing having a space for receiving a device operable to bias said members toward and into engagement with each other, said wedge-shaped space being in fluid communication with said location so that fluid pressure can cause the valve members to separate from each other when the fluid is at said location to thereby open the valve, whereby the fluid can flow from said location, through said wedge-shaped space past said working faces, and into and through said orifices; and means coupled with the housing for permitting a flow of fluid out of said orifice.

Claim 3

Dependent Claim 36 words

A fluid valve assembly as set forth in claim 1, wherein each valve member is transversely circular, said valve member other than said valve member having a centrally located orifice being fixed relative to the housing.

Claim 4

Dependent Claim 229 words

A fluid valve assembly comprising: a housing; means in the housing for defining a valve capable of being opened and closed, said valve having a pair of valve members, one of which is movable, each of the valve members having a working face, and the working face of at least one of said valve members has a tapered configuration to define therebetween a transversely wedge-shaped annular space having a maximum separation at the outer periphery in the range of 0.0001 to 0.01 inch, when the valve members are closed, one of the valve members having a centrally located orifice extending thereinto from its working face, the working faces being engageable with each other near the orifice to close the valve, the orifice being closed when the valve is closed; means in said housing for biasing said working faces toward and into engagement with each other, the distance between the orifice and the effective outer periphery of each of the working faces being at least 1.5 times the radius of the orifice, said housing having inlet means permitting a flow of fluid thereinto and to a location in fluid communication with said space, whereby the fluid can enter said space to separate the valve members and thereby flow into and through said orifice; and outlet means coupled with the housing for permitting a flow of fluid out of said orifice.

Claim 5

Dependent Claim 229 words

A fluid valve assembly comprising: a housing; means in the housing for defining a valve capable of being opened and closed, said valve having a pair of valve members, one of which is movable, each of the valve members having a working face, and the working face of at least one of said valve members has a tapered configuration to define therebetween a transversely wedge-shaped annular space having a maximum separation at the outer periphery in the range of 0.0001 to 0.01 inch, when the valve members are closed, one of the valve members having a centrally located orifice extending thereinto from its working face, the working faces being engageable with each other near the orifice to close the valve, the orifice being closed when the valve is closed; means in said housing for biasing said working faces toward and into engagement with each other, the distance between the orifice and the effective outer periphery of each of the working faces being at least 1.5 times the radius of the orifice, said housing having inlet means permitting a flow of fluid thereinto and to a location in fluid communication with said space, whereby the fluid can enter said space to separate the valve members and thereby flow into and through said orifice; and outlet means coupled with the housing for permitting a flow of fluid out of said orifice.

Claim 6

Dependent Claim 27 words

A fluid valve assembly as set forth in claim 3, wherein is included means coupled with said housing for adjusting the bias force of said bias means.

Claim 7

Dependent Claim 20 words

A fluid valve assembly as set forth in claim 4, wherein said bias means includes a plurality of spring washers.

Claim 8

Dependent Claim 29 words

A fluid valve assembly as set forth in claim 3, wherein said housing is cylindrical and is substantially symmetrical about its midpoint and said movable valve member is cylindrical.

Claim 9

Dependent Claim 47 words

A fluid valve member assembly as set forth in claim 6, wherein the housing has a cylindrical inner wall, the movable valve member being cylindrical and having an aNnular resilient seal thereon at the outer periphery thereof, said seal slideably engaging said inner wall of the housing.

Claim 10

Dependent Claim 50 words

A fluid valve assembly as set forth in claim 6, wherein the housing has a cylindrical inner wall, the shiftable valve member being cylindrical and having a pair of axially spaced annular, resilient seals thereon at the outer periphery thereof, said seal slidably engaging said inner wall of the housing.

Claim 11

Dependent Claim 41 words

A fluid valve assembly as set forth in claim 3, wherein said outlet means includes a tubular shaft coupled to and movable with said movable valve member and being in fluid communication with said orifice, said shaft extending through the housing.

Claim 12

Dependent Claim 75 words

A fluid valve assembly as set forth in claim 3, wherein said bias means includes a group of spring washers, and including an adjustment nut rotatably mounted on the housing, and a roller bearing between the nut and the proximal washer of said group, said nut being adjustable to vary the bias force of said washers on said working faces, said bearing being operable to reduce the friction between the nut and said proximal washer.

Claim 13

Dependent Claim 51 words

A fluid valve assembly as set forth in claim 3, wherein said movable one of said valve members has an end face opposite said working face, said bias means being adjacent to said end face and being operable to apply a bias force uniformly throughout the area of said end face.

Claim 14

Dependent Claim 52 words

A fluid valve assembly as set forth in claim 11, said outlet means includes a tubular shaft secured to and extending away from said movable one of said valve members, said end face is annular and surrounds said shaft, said bias means including a plurality of spring washers mounted on said shaft.

Claim 15

Dependent Claim 19 words

A fluid valve assembly according to claim 3, wherein said working face of said movable valve member is circular.

Claim 16

Dependent Claim 163 words

A valve assembly comprising: a support; a valve coupled with the support and including a pair of valve members, one of which is movable, each of the members having a working face, and the working face of at least one of said valve members has a tapered configuration to define therebetween a transversely wedge-shaped annular space having a maximum separation at the outer periphery in the range of 0.0001 to 0.01 inch, when the valve members are closed, one of the valve members having a centrally located orifice extending therethrough from its working face, the working faces being engageable with each other near said orifice to close the valve; means biasing the valve members toward each other; and means on the support for directing a fluid into a region adjacent to the effective outer peripheries of the working faces, the distance from the effective outer periphery of each working face to said orifice being at least 1.5 times the radius of the orifice.

Claim 17

Dependent Claim 163 words

A valve assembly comprising: a support; a valve coupled with the support and including a pair of valve members, one of which is movable, each of the members having a working face, and the working face of at least one of said valve members has a tapered configuration to define therebetween a transversely wedge-shaped annular space having a maximum separation at the outer periphery in the range of 0.0001 to 0.01 inch, when the valve members are closed, one of the valve members having a centrally located orifice extending therethrough from its working face, the working faces being engageable with each other near said orifice to close the valve; means biasing the valve members toward each other; and means on the support for directing a fluid into a region adjacent to the effective outer peripheries of the working faces, the distance from the effective outer periphery of each working face to said orifice being at least 1.5 times the radius of the orifice.

Claim 18

Dependent Claim 39 words

A valve assembly as set forth in claim 14, wherein said valve member other than said valve member having said centrally located orifice, is fixed relative to said support, the working faces of the valve members being transversely circular.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-12-23	1978-06-24	1978-12-24	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-12-23	1982-06-24	1982-12-24	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-12-23	1986-06-24	1986-12-24	$7700.00	Window Closed / Lapsed

Pressure responsive fluid valve assembly

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