Class 137/584 - Access and outlet

Subclass of Class 137 - Fluid handling
Definition: Systems in which one of the openings is an access opening
No. of patents: 27
Last issue date: 07/11/2006

Number	Title	Issue Date
7073775	Rotating check valve for compression equipment Methods and apparatus for controlling the flow through a compressor with a valve assembly comprising a rotating body having an outer surface. The rotating body is disposed within a valve cavity in the compressor. A non-contacting seal operates to limit the flow of f...	07/11/2006
6966503	Sprinkler provided with a built-in mechanism for dispensing detergent A sprinkler includes a shunt, a water-control shaft, a switch and a detergent storage pipe, wherein the shunt is provided with axial hole vertically connected to radial notch. Both sides of this shunt are vertically equipped with diversion holes. The top ends and ba...	11/22/2005
6966333	Rainwater collection device A rainwater collection device for collecting rainwater from a gutter for later usage. The rainwater collection device includes a housing having a bottom wall and a peripheral wall extending upwardly from the bottom wall. The peripheral wall has a top edge defining a...	11/22/2005
6957659	Sliding disk valve for pneumatic conveyance of abrasive material A linear actuated disk valve for a fluid conveyance system constructed with a valve body having an internal chamber and a passage through the valve body, the valve body having opposite ends with external connectors that continue the passage and that are connectable ...	10/25/2005
5971014	Vacuum breaker valve vent fitting clean-out device A venting device intended for connection to a horizontal sanitary vent pipe, in which vacuum pressure excursions occur providing a need for the introduction of air from the outside of the pipe automatically by way of the device without allowing a reverse ...	10/26/1999
5421474	Device for the assembly by clamping of an elastically compressible part A cylindrical housing (1) and a body (4) having a shape matching the shape of the housing (1). The body (4) is immobilized, so as to compress the elastically compressible part (3), by a split ring (6) placed in a groove (7) of the cylindrical wall of the ...	06/06/1995
5199645	Sprinkler system conversion kit A conversion kit for converting an existing sprinkler system liquid supply line into a general purpose soluble chemical application device is used to apply insecticides or fertilizer. The easily installed kit mixes dry chemicals with an existing pressuriz...	04/06/1993
5144699	Plumbing drainage system A plumbing drainage system has a plumbing stack with a clean-out hole formed therein. A drainage device for controlled drainage of the plumbing stack includes a device for connecting the drainage device to a plumbing stack at the clean-out hole formed in ...	09/08/1992
5131432	Dishwasher with discharge pump and nonreturn valve A dishwasher with a wash tub (3) connected on the bottom to a collection well (4) into which extends the outlet duct (8) of a discharge pump (6) fitted with a nonreturn valve (11) accessible from the inside of the wash tub. The valve consists of a box-lik...	07/21/1992
5080122	Non-return valve A valve body having an opening closed by a cover through which may be mounted or demounted a non-return obturator which is mobile along an upstream-downstream axis, the obturator being installed by first securing a first member to the valve body and then ...	01/14/1992
5004005	Combination valve A combination valve formed of a valve body having a flow passageway therethrough and an opening in the top communicating with the passageway. A rotating member is received in the body, within the flow passageway, the rotating member having a flow passagew...	04/02/1991
4928725	Combination plug and two-way check valve A combination plug and two-way check valve formed of a valve body having a flow passageway therethrough, the body having an opening in the top communicating with the passageway, first and second valve seats in the body, a ball member rotatably received in...	05/29/1990
4917147	Backwater escape valve A backwater escape valve for plumbing systems comprising a cylindrical body adapted to be coupled to a drainpipe system at the opening normally occupied by a sealing plug, and having a vertically disposed outflow opening covered with a hinged, spring-load...	04/17/1990
4739796	Fluid flow diverter Fluid flow diverter apparatus is described for reversing the direction of fluid flow through a process loop, such as a bundle of heat exchange tubes in an air conditioning system. The apparatus utilizes a housing enclosing a rotary valve in which the dive...	04/26/1988
4709723	Septic tank for alternative sewer systems A corrugated plastic side wall (A) extends from a bottom area (14) to an apex area (12). A riser (B) extends from the apex area above the ground level. A ring of steel channel (10) is fastened around the apex area to prevent the apex area from becoming di...	12/01/1987
4585052	Tank apparatus for holding a reserve supply of coolant for a radiator on a vehicle A tank apparatus is disclosed for holding a reserve supply of coolant for a radiator on construction or industrial vehicles. A dual enclosure of rigid material coacts with a radiator guard on a vehicle to define a tank receiving space of prescribed shape ...	04/29/1986
4475571	Sewer relief valve An improved sewer relief valve which is vandal-proof and automatically opens responsive to a back flow of sewage and drain water within a plumbing system....	10/09/1984
4420010	In-line back flow preventer A device for preventing the back flow of water from a point of use into a water supply line. The device includes a unitary casing having an inlet, a central chamber, an outlet, a removal port and a drain vent opening. The inlet, the central chamber and th...	12/13/1983
4408628	System and method for repair of leaking storage tanks containing fluids which contaminate ground water A system and method for repair of leaking storage tanks containing fluids which contaminate ground water has been devised requiring reduced funding which will make it economically feasible for repair of all old tanks suspected of being potential leakers, ...	10/11/1983
4377181	High temperature dual butterfly valve A large, high temperature, cost-effective butterfly valve with provisions for simple internal inspection and repair through a transverse access opening that is substantially smaller than the valve seat opening and which is repairable without necessitating...	03/22/1983
4372527	Blowout preventer A blowout preventer comprises a housing with a pair of opposed rams carrying sealing blocks for sealing against tubing extending through the housing. Openings in the front side of the housing provide access to the sealing blocks for changing the blocks an...	02/08/1983
4321942	Backflow preventer valve A backflow preventer valve including a housing structure having inlet and outlet ports therethrough for attaching to system conduits, a chamber formed in the housing, a pair of spaced valve seats associated with one of the ports including a space formed b...	03/30/1982
4273152	Control valve assembly with onstream seal removal feature A control valve assembly for controlling fluid flow in a flowline with an onstream seal removal feature, the control valve assembly including a housing to be mounted with the flowline, flow control members mounted with the housing, seal members for preven...	06/16/1981
4245668	Pressure regulator A pressure or vacuum relieving device intended as a large capacity inbreathing or outbreathing apparatus for equipment and/or piping, operating under low to moderate gas pressure or vacuum, e.g. 1 to 15 psig pressure or 0-5 psi vacuum. The principal featu...	01/20/1981
4140149	Plug cock Plug cock equipped with a rotating plug, which comprises a cylindrical body pivoting about an axis perpendicular to the axis of the cylinder and through which passes a conduit for the passage of fluid, which body comprises, at least one of its two axial e...	02/20/1979
4032106	Self-sealing valve A self-sealing dispensing valve for use on various containers. It is a simple two-piece device consisting of an outer housing having a dispensing outlet and an inner complemental valve member which ordinarily closes the outlet but which can be moved by fi...	06/28/1977
4015953	Firecheck A firecheck to be connected to a combustible gas line and including a casing having a gas inlet, a gas outlet and an access opening. A cover plate removably encloses the access opening and a burner screen is located within the casing between the inlet and...	04/05/1977

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Class 137/584 - Access and outlet