Valve assembly

Claim 2

A check valve assembly including apertured cup-shaped body means having a valve seat and port means, a valve element adapted to provide one-way passage for fluids in cooperation with said apertured body means, cap means cooperatively covering said body means, and having port means communicating with the interior of said cap means and body means, said body means including a base having one or more apertures, an annular flange extending axially from said base, fastening means on said flange for cooperation with said cap means, sealing means for cooperation with said body and cap means to seal their assembly, said cap means including an inverted cup-shaped member having means for cooperative mounting in fastened relation to said annular flange of said body means, said valve element being flexible and resilient and substantially covering the inner surface of the base of said body means, said element having at least one flap portion lanced from the central portion of said element and adapted to overlie the apertures in said base, said element including means for cooperation with said cap and body means to seal the juncture therebetween, and mounting means adapted to cooperate with the port means of said body means for mounting said assembly to an apertured workpiece.

Claim 3

An assembly of the type claimed in claim 1 wherein said inverted cup-shaped member includes a base portion and an axially extending wall portion, said cap port means communicating with at least one of said portions, said wall having at least its free extremity grooved to form a spaced double wall portion extending axially from said wall portion and adapted to embrace opposite sides of said annular flange in assembled relation, means for cooperation with said flange fastening means to maintain said body and cap means in assembled relation.

Claim 4

An assembly of the type claimed in claim 1 wherein the base of said groove includes an axially projecting rib adapted to cooperate with the free extremity of said flange to seal the cap and body means when in assembled relation.

Claim 5

An assembly of the type claimed in claim 3 wherein said element includes axially extending means supporting a laterally extending annular resilient flange which overlies said body means flange and is sealingly compressed against said flange by said rib in said groove whereby said cap and body means are sealed when Assembled.

Claim 6

An assembly of the type claimed in claim 1 wherein said base is concavely dished towards the interior of said cup-shaped body means, preloading means including means axially extending from said cap means to distort said element into a complementary shaped contact with said base.

Claim 7

An assembly of the type claimed in claim 1 wherein said base includes an axially extending annular rib for sealing engagement with the preloaded flaps of said element.

Claim 8

A check valve assembly including apertured cup-shaped body means having a valve seat and port means, a valve element adapted to provide one-way passage for fluids in cooperation with said apertured body means, cap means cooperatively covering said body means, and having port means communicating with the interior of said cap means and body means, mounting means adapted to cooperate with the port means of said body means for mounting said assembly to an apertured workpiece, said mounting means including a head having a central aperture of predetermined diameter, a plurality of resilient legs extending axially from said head and having external shoulder means for cooperation with an apertured workpiece in which the assembly is to be mounted, said port means of said body means including a tubular member extending axially from the base of said cup-shaped body means, said tubular member having a diameter substantially equal to said predetermined diameter whereby when said tubular member is axially telescoped within said mounting means, said member restrains the inward movement of said legs.

Claim 9

A check valve assembly including apertured cup-shaped body means having a valve seat and port means, a valve element adapted to provide one-way passage for fluids in cooperation with said apertured body means, cap means cooperatively covering said body means, and having port means communicating with the interior of said cap means and body means, mounting means adapted to cooperate with the port means of said body means for mounting said assembly to an apertured workpiece, said mounting means including a head having a central aperture of predetermined diameter, a plurality of resilient legs extending axially from said head and having external shoulder means for cooperation with an apertured workpiece in which the assembly is to be mounted, said port means of said body means including a tubular member extending axially from the base of said cup-shaped body means, said tubular member having a diameter substantially equal to said predetermined diameter whereby when said tubular member is axially telescoped within said mounting means, said member restrains the inward movement of said legs.

Claim 10

An assembly of the type claimed in claim 7, wherein said head means is frangibly connected to the free end of said tubular member.

Claim 11

An assembly of the type claimed in claim 7 wherein said tubular member and said legs include interconnecting means for resisting relative movement therebetween when in telescoped relation.

Claim 12

An assembly of the type claimed in claim 7 wherein said head includes a radially inwardly directed continuous annular ring for sealing impingement upon the outer complementary surface of said tubular member.

Claim 13

An assembly of the type claimed in claim 10 wherein said legs adjacent their free extremities include an inwardly directed circumferentially extending rib means, said tubular member having complementary groove means adapted to accept said rib means to prevent retrograde movement of said tubular member when telescoped within said legs.

Claim 14

A check valve assembly adapted to be mounted in an apertured workpiece including a cup-shaped body means, a cap means, a valve element and mounting means, said body means including a base having at least one aperture therethrough and a seat for said element, a continuous flange extending axially from said base and including laterally outwardly extending shoulder means toward said base, a tubular member of predetermined diameter extending axially from said base in a direction opposite to said flange, said tubular member communicating with said apertures and serving as port means for the interior of said apertured cup-shaped body means, said mounting means including a head having a central aperture substantially identical in diameter to said predetermined diameter, a plurality of resilient legs extending axially from said head and each having means for engaging the rear surface of said workpiece when said head is in engagement with the front surface of said workpiece, said head initially being integrally frangibly connected to the free extremity of said tubular member and adapted to be disconnected when said tubular member is axially telescoped through said head and between said legs whereby said legs are prevented from flexing inwardly from their seated position whereby the means for engaging the rear surface of said workpiece are maintained in engagement therewith, an external circumferentially extending groove disposed adjacent the extremity of said tubular member, rib means circumferentially disposed on the interior surface of said legs adapted to engage said groove for preventing retrograde movement of said tubular member when in telescoped relation to said mounting means, an annular rib having a lesser diameter than said predetermined diameter disposed within the aperture in said head and adapted to impinge in sealing relation with said tubular member, said cap means including a generally inverted second cup member having its interior in communication with said body means, said second cup member having a base and a sidewall, the free extremity of said sidewall being grooved in an axial direction to provide a pair of annular spaced wall means, said spaced wall means being adapted to embrace said flange, at least one of said wall means having means to engage said shoulder means to maintain the cap and body means in assembled relation, port means communicating with the interior of said cap means, said flange and said groove having cooperable means for sealing the juncture of said cap and said body means, said valve element being adapted to be seated on the base of said body means, said valve element further including at least one resilient flap means adapted to cover said apertures in said base and adapted to be moved from said covering position when pressure is fluid applied through said tubular member.

Claim 15

A check valve assembly adapted to be mounted in an apertured workpiece including a cup-shaped body means, a cap means, a valve element and mounting means, said body means including a base having at least one aperture therethrough and a seat for said element, a continuous flange extending axially from said base and including laterally outwardly extending shoulder means toward said base, a tubular member of predetermined diameter extending axially from said base in a direction opposite to said flange, said tubular member communicating with said apertures and serving as port means for the interior of said apertured cup-shaped body means, said mounting means including a head having a central aperture substantially identical in diameter to said predetermined diameter, a plurality of resilient legs extending axially from said head and each having means for engaging the rear surface of said workpiece when said head is in engagement with the front surface of said workpiece, said head initially being integrally frangibly connected to the free extremity of said tubular member and adapted to be disconnected when said tubular member is axially telescoped through said head and between said legs whereby said legs are prevented from flexing inwardly from their seated position whereby the means for engaging the rear surface of said workpiece are maintained in engagement therewith, an external circumferentially extending groove disposed adjacent the extremity of said tubular member, rib means circumferentially disposed on the interior surface of said legs adapted to engage said groove for preventing retrograde movement of said tubular member when in telescoped relation to said mounting means, an annular rib having a lesser diameter than said predetermined diameter disposed within the aperture in said head and adapted to impinge in sealing relation with said tubular member, said cap means including a generally inverted second cup member having its interior in communication with said body means, said second cup member having a base and a sidewall, the free extremity of said sidewall being grooved in an axial direction to provide a pair of annular spaced wall means, said spaced wall means being adapted to embrace said flange, at least one of said wall means having means to engage said shoulder means to maintain the cap and body means in assembled relation, port means communicating with the interior of said cap means, said flange and said groove having cooperable means for sealing the juncture of said cap and said body means, said valve element being adapted to be seated on the base of said body means, said valve element further including at least one resilient flap means adapted to cover said apertures in said base and adapted to be moved from said covering position when pressure is fluid applied through said tubular member.

Claim 16

An assembly of the type claimed in claim 12 wherein said valve element includes means extending axially along said flange and additional means extending laterally from the free end of first means forming a gasket adapted to overlie the free extremity of said flange, annular rib means extending axially within said groove and from the free extremity of said flange means, said rib means impinging on said gasket of said valve to seal the connection between said cap means and body means.

Claim 17

An assembly of the type claimed in claim 12 wherein said port means communicating with the interior of said cap means includes a tubular element extending laterally from said cap means and having a through bore which passes through said tubular element and through the sidewall of said cap means.

Claim 18

An assembly of the type claimed in claim 12 wherein said head of said mounting means is resiliently dished and includes a concavity facing said legs, sealing means disposed within said concavity, said head being adapted to be flexed when brought into engagement with the front surface of said workpiece and to compress said sealing means against said front surface to thereby seal the aperture of said workpiece through which said mounting means is telescoped.

Claim 19

An assembly of the type claim in claim 12 wherein the wall disposed on the interior of said flange has an axial extent relative to said flange such as is caused to impinge upon said valve element and to maintain said element in seated relation to said base.

Claim 20

An assembly of the type claimed in claim 12 wherein said apertured base is concavely dished towards the interior of said body means, preloading means adapted to flex said valve element into complementary engagement with said base.

Claim 21

An assembly of the type claimed in claim 17 wherein said base includes annular rib means forming a seat against which said flaps of said valve element sealing impinge as stressed by said preloading means.