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| Number | Title | Issue Date |
| 7434595 | Safety valve assembly having set and reset mechanisms A valve assembly includes an automatic excess flow shut-off mechanism for preventing excess flow between an inlet and an outlet of the assembly. The excess flow shut-off mechanism is adapted to automatically stop fluid flow through the valve assembly when the flow e... | 10/14/2008 |
| 7380293 | Safety valve for toilet tank A filling system for a toilet tank prevents continual flow to the tank in the event of a leak from the tank by providing a hydraulically actuated safety valve for halting water flow to the filling valve in the event that the water flow continues for a time longer th... | 06/03/2008 |
| 7246634 | Drill for tapping pipe with safety device in branch pipe A fitting for connection to a pipe includes a sleeve, in which a body is axially displaced along a sleeve axis, whereby the body has a drill for drilling into the pipe and/or a valve body of a valve. The fitting also includes a branch sleeve, located in particular o... | 07/24/2007 |
| 7231937 | Automatic shutoff valve An automatic shutoff valve is provided. The valve is preferably constructed of a check valve (which is normally shut) and a shutoff valve which is open during static, no-flow, operation. Upon initiation of flow, even a drip flow, the check valve opens, and the press... | 06/19/2007 |
| 7219688 | Fluid control valve A fluid flow control valve includes a housing having a fluid inlet and a fluid outlet, which define a flowpath therebetween. Within the housing is a chamber located in the flowpath between the fluid inlet and the fluid outlet. A valve member is mounted within the ch... | 05/22/2007 |
| 7216668 | Interruption valve with automatic reset A fluid valve (10) that interrupts the flow of fluid when backpressure ceases. The valve (10) consists of a valve body (20) having an inlet (22), an outlet (24), a piston chamber (32), and a backpressure port (34). Th... | 05/15/2007 |
| 7201184 | Pressure protection valve A valve is provided having a housing with an inlet and an outlet. Within the confines of the housing is a fluid flow path that allows for fluid communication between the inlet and the outlet. The valve includes a valve element that is movable to and from a position ... | 04/10/2007 |
| 7178544 | Combination shut-off and resetable excess flow valve A valve operable with an associated fluid delivery system having fluid flow therethrough includes a housing, a valve body and a resetable excess flow valve. The housing has a first passage and the valve body is disposed along the first passage and including a wall a... | 02/20/2007 |
| 7178553 | Leak-resistant solenoid valves A leak resistant solenoid valve comprises a valve body having an interior chamber, an inlet, an outlet, and at least one valve seat and valve plug located in the interior chamber. The valve plug has a sealing surface and is axially movable between open and closed po... | 02/20/2007 |
| 7140386 | Surge suppression and safety cut-off valve A surge suppressor and safety shut-off valve is described which automatically shuts off fluid flow in response to a sufficient pressure differential across the valve. The shut-off valve comprises a valve body adapted for use within a fluid distribution system throug... | 11/28/2006 |
| 7013913 | Flow control valve In a flow control valve, a spool is fitted into a cylindrical body including an input port and an output port. A spring is disposed between the spool and a flow rate setting plug at an end of the cylindrical body. A flow bypass communicating with the input port and ... | 03/21/2006 |
| 6960180 | Valve obturator An obturator prevents the tips or flaps of a duck-bill valve from self-adhering during storage or during sterilization procedures. The obturator holds the tips apart until the end-user is ready to use the valve. The duck-bill valve is used as an air outlet valve in ... | 11/01/2005 |
| 6920895 | Combination surge supression and safety shut-off valve A surge suppressor and safety shut-off valve is described which automatically shuts off fluid flow in response to a sufficient pressure differential across the valve. The shut-off valve comprises a valve body adapted for use within a fluid distribution system throug... | 07/26/2005 |
| 6644345 | Flow control valve A flow control valve is disclosed having a cylindrical housing having inlet and outlet ends and a central portion there between; a piston slidably disposed within the central portion and having a wall at one end thereof; a piston rod having a base and a t... | 11/11/2003 |
| 6443180 | Hydraulic line adjustable velocity fuse with damping A velocity fuse for a hydraulic line shuts off fluid flow when the flow rate exceeds a preset flow value. The shut off value may be adjusted while the fuse is mounted in the hydraulic circuit. A damping mechanism of the dash pot type prevents the fuse fro... | 09/03/2002 |
| 6408870 | Flow control valve A flow control valve is disclosed having a cylindrical housing having inlet and outlet ends and a central portion there between; a piston slidably disposed within the central portion and having a wall at one end thereof; a piston rod having a base and a t... | 06/25/2002 |
| 6123100 | Ammonia excess flow valve An ammonia excess flow valve has a seal ring (24) slidably positioned around at least two retainer vertical members (22B). A disk (26) has a disk central opening (26A) and a disk pin opening (26B) therethrough. The disk (26) is positioned adjacent to and ... | 09/26/2000 |
| 5960821 | Flow sensor device and associated vacuum holding system A flow sensor device includes a main passage having a normally open shut off valve therein which is configured to shut off at a predetermined rate of air flow therethrough. The shut off valve includes a seating structure and a centering structure position... | 10/05/1999 |
| 5791372 | Relief valve The invention intends to provide a relief valve which can prevent malfunction caused by generation of negative pressure lowering the minimum pressure to be originally maintained by a load circuit. Maloperation of a relief valve 401 is prevented by allowing a c... | 08/11/1998 |
| 5752544 | Device for feeding a distribution network with gaseous fluid Each gas expansion station of a distribution network fed with gas in accordance with the invention comprises at least one regulator-expander provided with a valve member disposed on a main duct, a pilot valve, a safety valve provided with a valve member d... | 05/19/1998 |
| 5524592 | Anti-siphon and anti-leanout fuel valve A flow control valve for an internal combustion engine fuel delivery system that includes a valve body having a fuel inlet for connection to a fuel supply and a fuel outlet for connection to the fuel pump, so that the pump can draw fuel under vacuum from ... | 06/11/1996 |
| 5474105 | Overrun control device A pneumatic fluid flow limiting device which is pressure compensated and resets automatically when the pneumatic fluid driven device is shut off. Pressure compensation is accomplished by a vented differential diameter chamber and reset is accomplished by ... | 12/12/1995 |
| 5445184 | Magnetic valve reset mechanism The present invention comprises of a reset mechanism particularly suited for use within magnetic valves. The reset mechanism will insure the desired return of a magnetic valve to its normal position even though there exists an imbalance of fluid pressure ... | 08/29/1995 |
| 5365965 | Hydraulic automatic shutdown valve system A hydraulic automatic shutdown valve system is described to minimize the cost and clean up associated with hydraulic fluid spills. The valve system senses a pressure drop in a fluid system and diverts fluid away from the failed area of a pressurized hydra... | 11/22/1994 |
| 5295534 | Pressure monitoring of a producing well A well pressure monitoring system in which a hydrocarbon fluid is being produced through a Christmas tree or similar flow controller apparatus. Well pressure is transmitted through a tap-off communicated to a pressure sensor. The pressure is thereafter tr... | 03/22/1994 |
| 5241984 | Flow valve An elastically movable valve having a through hole is installed at a required position in the path of a fluid. At the time of normal operation, the fluid is allowed to pass through the through hole, but if the fluid pressure is increased to a certain leve... | 09/07/1993 |
| 5080181 | Pressure detecting device for torque control wrench A pressure detecting device in a torque control wrench has a rotor to be rotated by high pressure air, an output shaft and a device for generating impulse torque with the use of oil pressure on the output shaft due to rotation of the rotor. The device has... | 01/14/1992 |
| 4976281 | Safety valve assembly for fluid system The safety valve assembly of the present invention for use in a closed fluid system comprises a valve housing including a central throughbore divided into an inlet end and an outlet end which communicate with one another via an axial passageway parallel t... | 12/11/1990 |
| 4880030 | Safety flow control fluid shutoff device A device for use as a safety device to cut off the water supply to a house or building in the event of overly high water consumption due to a leak or break in the plumbing in the house or building is disclosed which has only three moving parts and is of s... | 11/14/1989 |
| 4665932 | Automatic safety device for fluid duct An automatically and independently operating safety device for triggering a total or partial closure of a guard or safety valve member when the velocity of a fluid circulating in a conduit attains a predetermined dangerous value. The device senses the sta... | 05/19/1987 |
| 4637427 | Magnetic valve There is disclosed a reset mechanism particularly adapted for use within a magnet valve in which the reset mechanism comprises a passageway within the valve housing connecting the inlet and outlet passages in which a reset valve normally interrupts a comm... | 01/20/1987 |
| 4605039 | Runaway protective fuse valve A runaway valve for an air-driven material pump that shuts off air flow to the pump when air flow rate exceeds a predetermined setting to prevent pump damage, wherein the valve includes a flow-responsive poppet valve member and an axially movable sleeve f... | 08/12/1986 |
| 4597409 | Safety device against overpressure particularly for gas pressure control apparatus The high pressure of a gas transport network must be reduced before the gas is admitted to a distribution network to which consumers, e.g. household appliances are connected. This reduction is carried out by a gas pressure control installation. If this in... | 07/01/1986 |
| 4590962 | Gas fuse A gas safety valve is provided which has a valve chamber within a housing, and a gas inlet and outlet respectively communicating with an inlet and outlet end of the valve chamber. Valve means are disposed in the valve chamber for allowing gas to flow from... | 05/27/1986 |
| 4535797 | Automatic shut off valve An automatic shut off valve comprising a housing having a main inlet, an outlet, a user inlet and a user outlet. A valve assembly is contained within the housing and is movable between an open and a closed position. In its open position, the user inlet an... | 08/20/1985 |
| 4522229 | Safety device for water-pipes The safety device makes it possible to cut the water supply off quickly when there is a very low flow of water such as occurs when there is a leak, to cut off the water supply after predetermined time with normal water consumption, and to cut the water su... | 06/11/1985 |
| 4471797 | Hydraulic circuit breaker reset device A hydraulic system includes a pump, a reservoir, and an actuator system. A hydraulic circuit breaker is arranged to compare fluid flow to and from the actuator system and to shut off this flow in the event the flow to the actuator system is greater than t... | 09/18/1984 |
| 4471803 | Flow limit shutoff valve A flow limit shutoff valve for automatically shutting off all flow between a source of high-pressure gas and a pressure regulator when that flow exceeds a preset flow rate. The flow to the shutoff valve is metered, resulting in lowering the pressure downs... | 09/18/1984 |
| 4465093 | Hydraulic fuse valve A fluid fuse operable to shut off fluid flow upon rupture of fluid conducting line downstream of the fuse. The fuse is actuated by two forces generated by pressure differential caused by sudden decompression of the fluid and developed across two variable,... | 08/14/1984 |
| 4463773 | Safety shut-off valve A safety shut-off valve opening a flow path between the primary and secondary sides in case of usual operation, while shutting off the aforesaid path in response to an emergency shut-off signal, and particularly such safety shut-off valve cannot be reset ... | 08/07/1984 |
