Class 137/151 - With valve or closure in-flow passage

Subclass of Class 137 - Fluid handling
Definition: Apparatus having a flow controlling stopping means which
No. of patents: 28
Last issue date: 11/01/2005

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Number	Title	Issue Date
6959727	Siphonable check valve and method of making same A check valve for connection in a fuel tank filler tube. The valve has a tubular body with a plurality of radially inwardly extending vanes or ribs in the inlet end about a portion of the circumference. The ribs are tapered in the flow direction to deflect the end o...	11/01/2005
6648016	Valve assembly for a fuel tank A valve assembly for admitting a tube or fuel into a vehicle fuel tank is disclosed. The valve assembly has a fixed housing with an inlet, an outlet, a middle section and an inner surface with an opening. At least one projection depends from the inner sur...	11/18/2003
6419468	Reciprocating siphon suction pump A container includes an integral outlet tube that functions as a cylinder. A siphon mechanism including an elongated tube with a flexible seal on the outside surface of the tube functions as a piston. Fluid trapped inside the cylinder by a check valve is ...	07/16/2002
6412528	Siphoning pump apparatus A manually operative siphoning pump apparatus for transferring liquid from one container to another container. The siphoning pump apparatus has a hollow cylindrical pump body through which liquid from one container to another can flow and a bellows attach...	07/02/2002
6283137	Siphon assembly with one way priming valve An improved priming assembly which maybe used for siphoning, includes a siphon tube comprising an inlet end and a discharge end. The discharge end may be connected to a discharge hose that leads to a discharge area. A one-way valve is inserted within the ...	09/04/2001
6056029	Fuel-Transfer system A fuel-transfer system is provided for a fuel system of a vehicle. The fuel-transfer system includes a filler neck and a fuel tank having top and bottom walls. The fuel-transfer system includes a tube and a fuel conductor. The fuel conductor includes a ho...	05/02/2000
6012481	Constant-level fluid supplier A constant level of fluid (8 or 106) in vessel (1 or 104) is maintained using a reservoir (5 or 102) and a tank (4 or 101). Float valves (9 or 107) which raise and lower with the level of fluid in the reservoir are used to selectively close off fluid pass...	01/11/2000
5881753	Passive fluid level controller A fluid level controller which replaces fluid lost from a container thus maintaining the fluid level in the container. It is comprised of the following major pieces: an airtight reservoir (10) with cap (14), fill stem (12), feed lube (16), and tube attach...	03/16/1999
5718847	Automatic siphon drain apparatus and method Drain apparatus drains an evaporative cooler housing by siphon action. The siphoning action is started when a pump which pumps water for cooler pads is turned off, and the water in a conduit flows downwardly and a valve is switched, directing the downward...	02/17/1998
5558762	Portable water filter and valve assembly A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the...	09/24/1996
5343888	Automatic syphon system A level activated syphon system which automatically begins drainage of a liquid such as water from an accumulation area such a swimming pool cover or flat roof when the accumulation of water reaches a preset level is disclosed. The system requires no outs...	09/06/1994
5293894	Automatic prime and flush siphon condensate pump system An automatic prime and flush siphon condensate pump system (100) is provided for displacing condensate water accumulated from an air conditioning evaporator to a drain, such as the drain of a basin (50). Initially, the pump assembly (2) displaces the cond...	03/15/1994
5151174	Installation for the disinfection of clarified sewage with UV apparatus built into siphons The discharge conduit by which clarified sewage is withdrawn from a sewage clarification plant comprises a headwater conduit section and a low-water conduit section, the latter being separated from the former. The two conduit sections are connected to eac...	09/29/1992
5044391	Siphon assembly with priming valve A siphon assembly includes a tube connecting a fluid source with a fluid receiver and a priming valve attached to the source end of the tube. The priming valve includes a body having an inlet port and a neck having an outlet port. The inlet and outlet por...	09/03/1991
4989760	Self-fill siphon pipes A sort of self-fill siphon pipe comprises a straight tube, a hose fitted onto the upper end of the straight tube and in communication with the straight tube, and a one-way valve fitted on the lower end of the straight tube wherein the one-way valve only a...	02/05/1991
4649953	Siphon assembly for flushing cisterns Siphon assembly for a flushing cistern is in two parts; the first including the down leg of the siphon duct the lower end of which is mounted in the cistern base and the second including the up leg and the inlet chamber in which the flushing piston is rec...	03/17/1987
4621679	Water system valve for draining heat exchangers A valve (10) for a water temperature control system having a heat exchanger (C), a tank (T), and a pump (P) for circulating heat transfer fluid through a supply line (11, 12, 13) from the tank to the heat exchanger and through a return line (14, 15) from ...	11/11/1986
4574828	Hand held and hand operated pumping and siphoning device A hand held and hand operated device is capable of pumping or siphoning a liquid. The device includes a pair of telescoping hollow tubes having a single longitudinal axis with a seal therebetween that is maintained when one of the tubes is reciprocated re...	03/11/1986
4479274	Swimming pool siphon A swimming pool siphon for draining above the ground swimming pools. The siphon is comprised of a generally U-shaped tubular construction having two legs connected by a top bight portion restable upon a top edge of the side wall of the swimming pool. The ...	10/30/1984
4414997	Siphon A siphon for transferring fluid from a container to either another container at lower elevation or to a disposal area. The siphon includes a tube having an improved one way check valve which valve is inserted into the first container and, by merely shakin...	11/15/1983
4406300	Roof siphon drain Apparatus for siphoning liquid such as water which accumulates in a ponding area (16) located on a flat roof (12) to a drain (14) is disclosed. The apparatus includes a first liquid conduit (21) which has one end (58) in the accumulated water and a second...	09/27/1983
4381645	Power unit for dam A water power unit for a dam which includes a downwardly directed conduit for directing water from the body of water from the body of water retained by the dam to a water turbine or the like for generating power, the conduit including an upstanding U-shap...	05/03/1983
4301826	Combination siphon and positive action pump A combination vacuum lift pump and siphon for handling liquids, comprising a pump cylinder having an inlet disposed near one end and an outlet adjacent to but spaced from the other end, a piston reciprocatable in the cylinder, and a plunger and handle con...	11/24/1981
4168717	Temperature actuated siphon system A siphon system in which an enclosed container has a chamber for heating a gaseous fluid as by solar radiation. The chamber is in continuous open communication with a siphon having an inlet at an upper level and an outlet at a lower level. A pressure resp...	09/25/1979
4143674	Valve for continuously and automatically supplying furnaces with molten metal A valve for use in an apparatus for supplying molten metal by means of a siphon to a furnace. A valve formed by a tube provided with two flanges is placed at the upper part of the siphon, this tube extending by a certain length below the level of the flan...	03/13/1979
4095615	Check valve and siphon tube assembly employing same A check valve for substantially preventing fluid flow in a first direction, but allowing a substantially unrestricted fluid flow in a second, opposite direction, the check valve including a tubular body and a flapper valve hingedly disposed within the tub...	06/20/1978
4041971	Siphon starting device A siphon includes an inverted U-shaped tube providing a passage between a main and an auxiliary container of water. A longer leg of the tube is connected to the upper end of a first section of an enclosed chamber which extends deeply into the main contain...	08/16/1977
4034780	Check valve A check valve for use in a tube has a closure element hinged in the tube which nests within one side of the tube in the open position and pivots to substantially block the tube in the closed position. The closure element has a bottom edge and an upward ex...	07/12/1977

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Class 137/151 - With valve or closure in-flow passage