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Match Document Document Title
8869823 Non-return valve  
A non-return valve mechanism comprises a tubular member (1) having a substantially constant external diameter whereby the tubular member can be inserted into a pipe (5) from an open end thereof. A...
8863767 Alignment system for flapper valve  
A valve assembly, including a seat and a flapper complementarily formed with respect to the seat for creating a seal at an interface therebetween. At least one shim is operatively disposed in the...
8851195 Differential dry pipe valve  
A differential dry pipe valve is provided having a body including an inlet chamber having an inlet port, an exit chamber having an exit port, and a gasket flange positioned between the inlet and...
8733381 Anchor valve for security  
An anchor valve for security is disclosed. The anchor valve includes a check valve with a flapper for preventing a contaminant from entering the fluid supply system. Contaminants that are outboard...
8561642 Check valve for transport and storage containers for fluids  
A transport and storage container for fluids having a check valve that allows the contents of the storage container to be substantially completely emptied. A valve housing of the check valve has a...
8517052 Pressurized vapor cycle liquid distillation  
Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In some embodiments of the invention, a liquid purification system is revealed, including...
8511338 Water flow detection device  
In a water flow detection device in which signals are output in response to movement of a detection rod that rotates in conjunction with the opening of a valve body, a pin that supports the...
8490648 Check valve  
A top entry check valve including a valve body with an access port and clapper assembly with a compressible hanger positioned in alignment with the access port. The compressible hanger comprises a...
8443833 Check valve  
A valve is provided. The valve includes a flapper member. A barrel is coupled to the flapper member, the barrel having an interior volume and at least one movable vane within the interior volume....
8443834 Nozzle check valve  
A protection system for protecting a fire hydrant is disclosed having an interior, the protection system including a nozzle having a first end to be secured to the hydrant and a second end...
8317158 Valve assemblies including corrugated flowbody and method for the manufacture thereof  
Flapper valve assemblies are provided. One flapper valve assembly includes a flowbody, a flapper valve element, and an elongated stiffening rib formed in the flowbody. The flowbody includes a...
8316876 Flushing device with removable drain ring for potable water systems  
A drain ring adapted for use in a device for flushing a dead-end of an underground municipal water distribution system includes a pair of annular seals and a channel between the seals, an outlet...
8302623 Anti-backflow insert for a fire hydrant outlet  
An cylindrical hollow anti-backflow insert that can rapidly retrofit a fire hydrant to prevent a forced liquid inflow into the fire hydrant after simple insertion of the insert into the outflow...
8256454 Dynamic flapper and method  
An adjustable moment arm flapper including a flapper defining a cavity there within and a moveable mass system disposed within the cavity, a center of mass of the flapper changeable based upon...
8196600 High-temperature jointed assemblies and wear-resistant coating systems therefor  
Wear-resistant coating systems suitable for protecting surfaces subjected to contact wear at high temperatures, such as surfaces of an assembly comprising high-temperature components of gas...
8096318 Valve flap for a plumbing valve  
A valve flap for a plumbing valve, includes a body having a first face, a second face, a top and a bottom. A pivotal mounting is provided in the vicinity of the top. A curved lower snake...
8028715 Check valve for vacuum sewage pipe and vacuum sewage system  
The present invention provides a check valve for use in a vacuum sewage pipe. The check valve includes a body having a sewage inlet and a sewage outlet to be coupled to the vacuum sewage pipe, a...
7874307 Check valve and method of use  
A check valve is shaped and dimensioned to be installable inside a conventional pipe coupling, thereby reducing the amount of length required to install the check valve.
7814983 Dry pipe valve for fire protection sprinkler system  
A fire protection system comprises a supply pipe having a first fluid pressurized to a first pressure and a network of pipes having a plurality of sprinklers. The network of pipes have a second...
7770511 Method and device for preparing liquid  
The invention relates to a device and method for preparing liquid from solid materials such as medicinal materials. It includes liquid and materials for preparing the liquid at the beginning and...
7730679 Drain for a door or window sash or frame  
A water drain for insertion into a mating wall opening in an extruded, hollow door or window sash or frame comprises a round, rectangular or the like housing having at least one peripheral front...
7585164 Backflow preventing apparatus for compressor  
A backflow preventing apparatus for a scroll compressor is disclosed, in which a check valve is hinge-coupled to a valve seat, or is coupled to a valve seat so as to be elastically opened and...
7575019 Faucet with water temperature retaining feature  
The present invention is related to a water faucet having a water temperature retaining feature. The water faucet includes a hot water control, a cold water control, a mixing chamber for receiving...
7520294 Hydrant shoe with backflow prevention assembly  
A fire hydrant system relating to protection of a water supply from contamination. The fire hydrant system includes a barrel adapted to communicate at least indirectly with a water supply; a...
7444828 Ice discharging structure of ice making mechanism  
An ice discharging structure of an ice making mechanism for discharging an ice block from the ice making mechanism reliably regardless of the weight of the ice block. An ice making mechanism of an...
7322423 Dry pipe valve for fire protection sprinkler system  
A fire protection system comprises a supply pipe having a first fluid pressurized to a first pressure and a network of pipes having a plurality of sprinklers. The network of pipes have a second...
7302967 Reverse flow preventing device and electronic apparatus  
A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of...
7152622 Check valve  
A top entry check valve including a valve body with an access port. A compressible hanger body engages a portion of the valve body and is positioned in alignment with the access port of the valve...
7134448 Transducer for monitoring the position of a movable body  
A transducer for monitoring the position of movable bodies and in particular for monitoring the position of valve flaps and other elements in connection with systems for fire extinction, is...
7108010 Check valve position detector  
A position detector for a check valve, including a bracket with a support arm, adjustable securing members adapted to rigidly secure the bracket to a check valve arm, a tilt switch, a connector, a...
7004194 Check valve with pressure relief feature  
A check valve has a valve body and flapper. The flapper has a gasket which is sandwiched between a flapper base and a flapper cover. The flapper base has a flapper base stem which extends through...
6971398 Hydrodynamic-force-responsive baffle for liquid treatment basin  
A baffle controls the normal process flow of liquid in basins of liquid treatment equipment, but releases uncontrolled flow of the liquid caused by events such as seismic events. Methods provide...
6848468 Drain cover assembly  
A drain cover assembly includes a closure device operable so as to close and open a drain hole in a cover plate of a drain cover unit. The closure device includes a pivot arm having a mounting...
6830065 Duct connector apparatus and method  
The duct connector of the present invention preferably has a rectangular inlet and a round outlet. An intermediate passage is located between the rectangular inlet and the round outlet....
6823905 Inflation valve assembly for a dunnage or cargo air bag  
An inflation valve assembly, for a dunnage or cargo air bag, comprises an annular flange member which is adapted to be heat-sealed to an interior surface portion of one of the plies of the...
6789568 Fluid flow control mechansim  
A fluid flow control mechanism includes a crossover fuel assembly which controls fuel flow between tanks such that an engine fuel intake pipe remains submerged. It is for a work vehicle with a...
6782916 Flapper valve system  
A fuel system for a work vehicle such as a tractor includes a pair of fuel tanks located on either side of the vehicle that are connected by a cross feed fuel line. The fuel line permits fuel to...
6691736 Waterproof valve of exhausting tube  
A waterproof valve of an exhausting tube comprises a tube body, a check portion, a check piece and a ball. An upper end of the check portion has two assembling holes. A check piece having two tip...
6685557 Building ventilation air inlet assembly  
A building ventilation air inlet assembly for providing an adjustable venting assembly to permit automatic inlet of air includes a housing, an air opening extending through the housing, a valve...
6543474 Pressure equalizing check valve  
A flapper-type anti-siphoning check valve for a domestic water system has an auxiliary valve built into the flapper. The auxiliary valve permits slow reverse flow of water through the check valve...
6508246 Mechanical draft controller  
The present invention is a mechanical draft controller. The draft controller is comprised of a draft controller portion, a means for pivoting the controller portion, and a means for...
6499503 Backflow valve  
A backflow valve has a closure gate that is pivotally mounted for movement between an open position in which the closure gate is positioned on a plane substantially parallel to a longitudinal axis...
6475078 Air ventilating device  
An air inlet device for use in automatically providing ventilation to the interior of buildings. The device has one of more openings each of which has a moveable louver pivoted at the lower side...
6328052 Bidirectional check valve  
A valve for controlling fluid flow while permitting flow in only one direction includes a housing having a spherical central opening and connections to permit attachment to fluid flow lines at...
6318403 Combination manifold and check valve for a water heater  
The present invention disclosed and claimed herein comprises, in one aspect thereof, a combination manifold and check valve assembly for a water heater unit which includes a temperature and...
6269800 Device for feeding fuel  
A device for feeding fuel from a supply container to an internal combustion engine of a motor vehicle has a supply container, a collecting cup arranged in the supply container, a fuel feeding pump...
6264452 Reinforcement pin for check valve  
A scroll compressor has a check valve plate assembly with a reinforcing device to increase the strength of the check valve plate. The check valve plate is stamped from a relatively thin steel reed...
6199576 Bi-directional cleanout with backflow preventer  
The invention is a bi-directional cleanout for pipelines such as sewer pipelines and a bi-directional cleanout with a built in backflow preventer. The backflow preventer is a check valve which...
6192926 Safety valve especially for pneumatic circuits  
It comprises a body provided with an inlet and an outlet; a moving gate which separates said inlet and said outlet; a seat formed on said body and adapted for said gate to rest against it; hinge...
6179588 Check valve device for a scroll machine  
A check valve device for a scroll machine is used to automatically maintain a unique flow direction of the working media. The check device is mounted on the neck of the non-orbiting scroll member...

Matches 1 - 50 out of 329 1 2 3 4 5 6 7 >