Air check valve assembly for powdered bulk product transport
First Claim
1. An air fluid check valve adapted for ready insertion therein and removal from the interior of a conduit assembly at a separable joint therein, the conduit assembly being adapted for use for instance on a bulk hauling transport vehicle for powdered solids, comprising a valve body having means thereon for locating the valve in generally centered condition in the interior of the conduit assembly at said joint, said body having an opening therethrough for the passage of fluid, a spring loaded valve plate pivotally mounted on said body and adapted to be urged in a direction to close said opening, but being pivotal to an open position upon application of predetermined fluid pressure in the conduit assembly to said valve plate, for permitting passage of fluid through said valve opening, resilient seal means adapted to coact in sealing relation with said valve body, for sealing the separable joint of the conduit assembly and for preventing leakage of fluid from interiorly of the conduit assembly externally of the valve, and wherein said seal means comprises a seal member adapted to encompass the conduit joint and to coact in sealing relation with said means on said valve body.
1 Assignment
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Accused Products
Abstract
An air fluid check valve for assembly into the interior of a pair of generally axially aligned conduit sections at a separable joint thereof, for use for instance on a bulk hauling transport trailer adapted for handling powdered solids, such as for instance flour, or cement, or like product. The air valve comprises a valve body which is adapted to be readily inserted into and removed from the separable conduit joint, and in one embodiment has a radially extending rim at one end thereof for locating the valve in the interior of the conduit sections at the joint thereof. In another embodiment, bolts connecting flanged portions of the conduit joint, coact in juxtaposed condition with the valve body to locate the valve in proper position at the conduit joint. The valve has at least one opening therethrough which is adapted to be closed by means of a pivotal spring loaded valve plate, which is pivoted to an open position upon application of predetermined fluid pressure in the conduit sections, applied to the valve plate, for passage of fluid through the conduit sections via said opening in the valve body. Sealing means coacts in sealing relation with the adjacent conduit sections and with the valve body, for sealing the separable joint of the conduit, and for preventing leakage of fluid in the conduit sections externally of the valve body.
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Citations
12 Claims
- 1. An air fluid check valve adapted for ready insertion therein and removal from the interior of a conduit assembly at a separable joint therein, the conduit assembly being adapted for use for instance on a bulk hauling transport vehicle for powdered solids, comprising a valve body having means thereon for locating the valve in generally centered condition in the interior of the conduit assembly at said joint, said body having an opening therethrough for the passage of fluid, a spring loaded valve plate pivotally mounted on said body and adapted to be urged in a direction to close said opening, but being pivotal to an open position upon application of predetermined fluid pressure in the conduit assembly to said valve plate, for permitting passage of fluid through said valve opening, resilient seal means adapted to coact in sealing relation with said valve body, for sealing the separable joint of the conduit assembly and for preventing leakage of fluid from interiorly of the conduit assembly externally of the valve, and wherein said seal means comprises a seal member adapted to encompass the conduit joint and to coact in sealing relation with said means on said valve body.
- 11. A pair of generally axially aligned conduit sections disposed in a conduit assembly for a bulk hauling vehicle for use in handling powdered solids, said conduit sections being disposed in generally juxtaposed relation with respect to one another at a separable joint therebetween, and an air fluid check valve assembled into the interior of said conduit sections at said separable joint, said valve comprising a valve body having means extending generally radially thereof, for locating the valve in the interior of said generally juxtaposed conduit sections at said separable joint, the last mentioned means separating said conduit sections at said joint, said valve body having a pair of spaced openings therethrough, a pair of spring loaded valve plate assemblies pivotally mounted on said body and being urged in directions to normally close the respective of said openings but being pivotal to open positions upon application of predetermined fluid pressure thereto in the conduit sections, for passage of fluid through said conduit sections and via said openings, a seal member encompassing said conduit joint and coacting with said radial means on said valve body for sealing the separable joint of said conduit sections and preventing leakage of fluid in the conduit sections externally of said valve body, clamping means coacting with said seal member and forcing the latter into tight sealing relation between the exteriors of said conduit sections at said joint and with said means on said valve body, said clamping means being removable for permitting ready access to said valve at said conduit joint.
Specification