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| Number | Title | Issue Date |
| 7429198 | Electrode connector for ring laser gyros A laser block assembly (LBA) gas fill process device with improved cathode electrode connectors. An example device includes a gas fill component that attaches to an LBA under test and electrical connectors that receive a voltage bias from a voltage source and apply ... | 09/30/2008 |
| 7207348 | Machine comprising a safety valve for the supply of pressurised fluid The safety valve comprises a body and an obturator movable in the body between a closed position (FIG. 2) and an open position (FIG. 3). It also comprises means for displacing the obturator in order to displace it towards its closed position when the p... | 04/24/2007 |
| 7033134 | Air turbine starter having a force balanced, pressure energized, weighted check valve An air turbine starter is provided that includes a check valve assembly for placement between a first environment, at least a portion of which is at a first pressure (P1), and a second environment, at least a portion of which is at a second pressure (P | 04/25/2006 |
| 6679053 | Device for preventing unintentional restarting A device for preventing the unintentional restarting of motors or machines is proposed, it being possible to control the supply of energy to the motor or to the machine by means of a control valve with a mechanically adjustable control element and it bein... | 01/20/2004 |
| 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 |
| 5289843 | Hydraulic safety valve A hydraulic safety valve adapted to cut or divert the flow of pressurized fluid A hydrau/sudden rupture occurs in the hydraulic system. The valve has a valve body with an inlet port, first and second outlet ports and a sump port. A first valve member cont... | 03/01/1994 |
| 5228469 | Fluid control system The fluid control device of the present invention combines a flow sensing unit in series with a control valve. The flow sensing unit is of the displacement piston type and the flow rate is electronically sensed. A single action poppet valve assembly facil... | 07/20/1993 |
| 4768539 | Pipeline safety valve A surface pipeline safety valve having a tubular member telescopically movable in the housing for controlling the movement of a valve closure member, a rod piston and cylinder assembly contacting and moving the tubular member in response to pressure in th... | 09/06/1988 |
| 4742841 | Water shut-off valve A coolant system and control valve used in a circuit for cooling spot welding tips. The control valve normally passes coolant to and from the tips. Should a break in the coolant flow occur because of a breakdown of one or more of the tips, the control val... | 05/10/1988 |
| 4650152 | Automatic shut-off valve for welding electrode coolant systems A valve for controlling the flow of a liquid coolant in a circuit interconnecting several hollow welding electrodes with a pressurized coolant source has dual ball check valves in the supply and return lines respectively and a spring and pressure responsi... | 03/17/1987 |
| 4161960 | High and low tubing pressure actuated well safety valve A well safety valve adapted to be positioned in a well tubing and close on either a predetermined high tubing pressure or a predetermined low tubing pressure. The valve closure member in the valve body moves between an open and closed position in response... | 07/24/1979 |
| 4097184 | Pressure operated valve A pressure operated shut-off valve for controlling a pneumatic circuit for instance a supply passage of a pneumatic tool, in response to the motive air supply pressure. The valve comprises a valve body that is continuously biased in its closing direction ... | 06/27/1978 |
| 4090688 | Low pressure shutoff valve for fluid operated tool A low pressure shutoff valve adapted to be interposed in the fluid supply conduit of a fluid operated torque tool comprises a piston closure member having opposed differential pressure faces exposed to fluid supply pressure and a coil spring for biasing t... | 05/23/1978 |
