| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 137517000 | Biased open | 16 |
| 20080283131 | Priming Valve Device for Water Circuit of a Beverage Machine - A priming valve device for a beverage machine. The device includes a casing assembly including a water inlet, a water outlet, and a drain and venting portion for discharging water or air during priming and a valve assembly associated with the casing assembly. The valve assembly includes a valve member which is moveable to a closed position which closes the water outlet by elastic return when the pressure in the water inlet decreases under the elastic return pressure of the valve member. | 11-20-2008 |
| 20090032117 | FLOW RATE CONTROL VALVE - In a pressure compensation type flow rate control valve, overshoot of a flow rate when an upstream pressure is abruptly increased is suppressed. A first variable orifice | 02-05-2009 |
| 20090293964 | MECHANICAL FUSE TO SEAL PIPES UPON UNINTENDED RUPTURE - The present invention relates to a mechanical fuse to seal pipes upon unintended rupture. When a pressure difference between a first pressure and a second pressure in a pipe is below a pressure threshold, a first spring retains a flap in a first position allowing gaseous fuel to flow from a first portion to a second portion and when the pressure difference between the first pressure and the second pressure is not below the pressure threshold the flap moves to a second position preventing the gaseous fuel from flowing from the first portion to the second portion. | 12-03-2009 |
| 20100154902 | Hydraulic Shut-Off Valve with Surge Resistant Chamber - A shut-off valve capable of operating appropriately within a hydraulic line to respond to both catastrophic line break events and fluctuations without unnecessarily interfering with the operation of the hydraulic systems. | 06-24-2010 |
| 20100307613 | DEVICE FOR BLOCKING AND RELEASING A FLUID FLOW AND ASSOCIATED METHOD - The invention relates to a device for blocking and releasing a fluid flow having a fluid inlet and a fluid outlet. A main opening is disposed between the inlet and the outlet and associated with a main blocking element that can seal off the main opening. An actuation device can move the main blocking element from the open position to the closed position, and the main blocking element is disposed in the closed position such that an increased fluid pressure at the fluid inlet relative to the fluid outlet brings about a press force holding the main blocking element in the closed position. A fluid overflow path is provided between the fluid inlet and the fluid outlet that can be sealed off by the actuation device. The main blocking element can be released by the actuation device and the fluid overflow path can be opened by the actuation device. In the release position, an opening force for moving the main blocking element into the open position can be applied thereto, so that it remains in the closed position only as long the fluid pressure overcompensates for the opening force. | 12-09-2010 |
| 20110108140 | LATCHING CHECK VALVE - A hydraulic valve including an inlet port for receiving a pressurized hydraulic fluid and an outlet port for expelling the hydraulic fluid. The valve also includes a displaceable spool for blocking and unblocking a flow path between the inlet and outlet ports, and a latching mechanism for displacing the spool in response to a pressure surge for the hydraulic fluid. The valve includes a first elastic element and a second elastic element, where the first elastic element urges the spool into a position blocking the flow path and the second elastic element urges the latching mechanism to displace the spool into a position out of the flow path. In an unlatched position of the latching mechanism, force from the second elastic element is transferred to the spool, and in a latched position of the latching mechanism, the spool is isolated from the second elastic element. | 05-12-2011 |
| 20110284104 | AUTOMATIC FLOW REGULATOR VALVE - An automatic flow regulator valve designed to regulate water pressure from a liquid source outlet in the event of pressure surges and/or fluctuations. In an “open” position, the predetermined water flow pressures are not sufficient to overcome a spring force of a spring. Therefore, a sealing plate is maintained separated from a step by the spring force, thus allowing water to flow around the outmost perimeter edge of sealing plate. In operation under water flow pressure surges and/or fluctuations, the automatic flow regulator valve is “closed”. In the “closed” position, the water flow pressure surges and/or fluctuation pressures are sufficient to overcome the spring force of spring. Therefore, the sealing plate is biased against the step and the water does not flow around the outmost perimeter edge of sealing plate since sealing plate is biased against the step. | 11-24-2011 |
| 20120042966 | PRESSURE ACTIVATED RATCHETING VALVE - A pressure actuated valve is disclosed which includes a plurality of flow openings, and first and second pistons. The first and second pistons are independently actuatable relative to one another, and are releasable coupled to one another by a release sleeve. The pressure actuated valve also includes a closing sleeve that is operatively coupled to the second piston. In an initial position of the second piston, the closing sleeve covers or blocks the plurality of flow openings. The pressure actuated valve includes a ratchet mechanism coupling the release sleeve to the first piston, the ratchet mechanism being adapted to allow movement of the first piston between its initial position and an intermediate position and back to its initial position while allowing the release sleeve to release the second piston after a predetermined number of cycles of movement of the first piston between its initial position and the intermediate position and back to its initial position. Upon release of the second piston by the release sleeve, the second piston, and the closing sleeve, responsive to the urging of a spring, will move to its final position uncovering the plurality of flow openings. The ratchet mechanism allows for the incremental movement of a release sleeve in response to movements of the first piston. The release sleeve is adapted to open the pressure actuated valve upon movement of the release sleeve through a designated distance. | 02-23-2012 |
| 20120160346 | NOZZLE CHECK VALVE - A check valve includes a valve body having a valve seat, a diffuser, a disc coupled to the diffuser, and a compression spring. The diffuser is positioned inside the valve body and has a forward face. The disc is coupled to and movable relative to the diffuser and has an upstream face and a downstream face. The compression spring biases the disc into a normally open position during forward flow. A check valve apparatus further comprises at least one test bore through the valve member in communication with the disc. A method for testing the operation of a passive check valve is also disclosed. | 06-28-2012 |
| 20120160347 | DEVICE FOR BURST PIPE SAFETY - A device for the protection against the rupture of pipes carrying a fluid includes two or more flow channels and a closing element which interrupts the flow of fluid if a predetermined permissible volume flow is exceeded. At least one of the flow channels can be closed by a test closure in order to increase the flow speed in the remaining flow channels and for test purposes to bring about a movement of the closing element into the closing position. In this way, devices for the protection against the rupture of pipes integrated into complex systems carrying a fluid can be tested in situ to verify their proper functioning. | 06-28-2012 |
| 20120318385 | Pressure responsive flow controller - A flow controller includes a housing having a space formed in one end portion of the housing and communicative with a chamber of the housing, a valve piece slidably engaged in the housing and limited to move relative to the housing and having a compartment formed by a fence and having a passage communicative with the compartment of the valve piece for changeably communicating with the space of the housing and for allowing a communicating area of the passage of the valve piece with the space of the housing to be changed and for allowing a fluid to changeably flow from the space of the housing and through the passage of the valve piece when the valve piece is moved relative to the housing. | 12-20-2012 |
| 20130105009 | FLOW CONTROL VALVE | 05-02-2013 |
| 20160176285 | FUEL TANK CHECK VALVE | 06-23-2016 |
| 137519000 | Weight biased | 3 |
| 137519500 | Ball valves | 2 |
| 20100139787 | Gas Overflow Safety Protector - A gas overflow safety protector comprises a main body including a longitudinal passage for gas; a gas overflow protecting valve disposed in the inlet of the longitudinal passage, which keeps opened under a normal gas pressure and keeps closed under an abnormal gas pressure of overflow; wherein said gas overflow protecting valve including: a valve body including a longitudinal through hole, said longitudinal through hole including a larger-diameter portion as an inlet and a smaller-diameter portion as an outlet, and at least part of the inner wall of said larger-diameter portion being made from magnetic material; a valve core, being a ball made by magnetizer, movably disposed in said larger-diameter portion of the longitudinal through hole for opening or closing said smaller-diameter portion. Compared with the prior art, the gas overflow safety protector of the present invention does not include a spring element. The ball-shaped valve core and the magnetic material on the larger-diameter portion cooperate each other through magnetism so as to protect under the gas overflow. The gas overflow safety protector of the present invention has long usage time, and can be long used in the high temperature, and the structure is simple too. | 06-10-2010 |
| 20110214760 | Screw top liqid dispensing chamber - The invention is a device which works similar to a ‘liquor dispenser’. To use the invention the original cap on the beverage carton must be screwed off. The invention screws onto a screw top beverage carton (usually milk/cream carton also referred to as a Gable Top Carton usually made of a cardboard type material). It has a straight pour spout which always keep the spout in pouring position and two chambers. These chambers contain steel balls that function according to angle and pressure when the invention is secured onto the beverage carton threaded neck and is raised to pour liquid into a cup. The steel ball in the main chamber acts as a stopper. This occurs when a specified amount of liquid has rushed through the two side hollow windows of the chamber and out of the spout. When the ball rolls to the top wall of the main chamber it blocks excessive liquid from exiting the spout thus creating a measured serving. This invention is unique because it attaches to the neck of the screw cap housing located atop of a beverage carton by means of an internal thread. The invention is externally located with the chamber reaching inside of the beverage carton just past the beginning of the beverage carton neck. | 09-08-2011 |
| 137520000 | Edge pivoted valve | 1 |
| 20120325341 | GULLY ARRANGEMENT - A gully arrangement comprises a housing ( | 12-27-2012 |
