Class 251/67 - With second diverse control

Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter associated with means for normally actuating
No. of patents: 29
Last issue date: 02/27/2007

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Number	Title	Issue Date
7182314	Apparatus for actuating a valve An apparatus for actuating a valve includes a rotatable control shaft connected to the valve and a gearbox wheel is secured to the control shaft. A worm intermeshes with the gearteeth of the gearbox wheel such that when the worm is rotated, the wheel and the shaft a...	02/27/2007
7163186	Quick-closing valve for the interruption of a fluid flow A valve housing 1 with valve seat 10 incorporated in a fluid line features a closing element 2 with a valve disk 11 and a valve stem 12 extending through and sealed in the housing wall which, on the outer side, is locked by means o...	01/16/2007
7125332	Ceiling radiation damper and mounting method A ceiling damper system that comprises a damper housing having an input opening to accept air from a heating, ventilation and air conditioning HVAC system, and an output opening to supply the HVAC air to a room. The system further comprises a damper mechanism to sub...	10/24/2006
7028705	High torque failsafe valve operator A fluid valve operator for moving a moveable valve element such as a disc (14) that is pressed forcefully against a surface of a valve frame (12). The valve operator includes first and second electric gear reduction motors (22, 24) that each has...	04/18/2006
6915632	Actuator for a valve, in particular a turbine valve An actuator includes a valve spindle, for adjustment of an opening position for a valve and a drive piece for the valve spindle. The drive piece is connected to the valve spindle, by a storage device, which may be pre-tensioned to a particular pre-tensioned value du...	07/12/2005
6899122	Safety shutoff apparatus and method Safety shutoff apparatus can close a valve using a pressure operable device coupled to and acting upon the valve. The proximal end of a pressure line is coupled to the pressure operable device for applying fluid pressure thereto in order to operate the pressure oper...	05/31/2005
6374848	Automatic mechanism for cut-off and drainage of under low-freezing ambient temperature conditions An automatic mechanism is provided for cutting-off water flow to a plumbing system of a house, an apartment, a business or the like, while at the same time draining water/plumbing systems when subjected to low/freezing ambient temperatures. The mechanism ...	04/23/2002
6206337	Automatic flood control ball valve An automatic shutoff valve for shutting off the main water supply to a building in the case of detected water leak. A ball valve is provided with a mounting kit for rendering the valve automatic. The apparatus includes a housing adapted to fit over the va...	03/27/2001
6170509	Safety valve system A safety device for shutting off a gas valve at the detection of a gas leak has an add-on adaptor device having a first knob mounted over an existing gas knob and affixed thereto; a spindle coupled to the first knob, capable of rotating the fist knob, and...	01/09/2001
6123093	System for controlling fluid flow A system for regulating flow of fluid through a flow line, such as a supply line, the line having a flow controller such as a valve, the system having a sensor for generating a signal in response to a parameter, a transmitter for transmitting a correspond...	09/26/2000
6093086	Polishing head release mechanism The present invention provides a method of manufacturing an integrated circuit using a polishing head release mechanism. The polishing head release mechanism is for use with a polishing tool having a polishing head and a polishing platen. In one embodimen...	07/25/2000
6029947	Safety valve for fire suppression device A fire suppression valve for use with a cannister of fire suppression material. The valve has a safety shuttle valve located in a discharge port for preventing unintended discharge of fire suppression material in the absence of connection to a discharge h...	02/29/2000
5887849	Thermal release apparatus for coupling a damper actuator to a damper blade assembly A thermal release coupler is provided for use in a fire and smoke damper assembly. The fire and smoke damper assembly includes an array of damper blades carried in a damper frame which are moveable between open and closed positions; a linkage joining the ...	03/30/1999
5295403	Mechanical actuator A device for power actuating a valve or other controlled unit, including a member operable by movement in opposite directions to move the controlled unit to different positions, a spring yieldingly urging the member in one of those directions, and a latch...	03/22/1994
5238220	Manually and electrically controlled butterfly valve A butterfly valve is utilized to control air flow in the environmental control air distribution system of an aircraft. A linkage system enables the valve to be manually controlled under normal conditions but to be shut off remotely in case of an emergency...	08/24/1993
5203688	Safe gas control valve for use with standing pilot A fuel gas control valve capable of internationally acceptable operation, including a main valve operable in an on-off mode by an electromagnetic actuator that receives a signal from a conventional electric thermostat. A pilot valve is initially operated ...	04/20/1993
4947886	Temperature actuated flow control device A flow control device, such as a valve, has a body with two portions which define two valve chambers, an inlet, which is coupled to a source of pressurized fluid and which opens into one of the valve chambers, and an outlet coupled to downstream devices, ...	08/14/1990
4817658	Automatic valve actuator A valve actuator (A, B) for automatic actuation of a rotary valve mechanism (V, V') in response to a specific exigency, such as fire. The actuator includes a housing (13) affixed in relation to the valve, having a spiral torsion spring (11, 11'). A spring...	04/04/1989
4691736	Valve for fire suppression A pressure-driven fire-suppression valve wherein a single electrical switch is mechanically actuated by coaxially related first and second sealed piston components, which are compliantly loaded in the direction away from switch actuation. The first piston...	09/08/1987
4579315	Valve for fire suppression The invention contemplates a quick-opening valve for release of pressurized gas to suppress a hydrocarbon or the like fire and/or explosion. A piston or poppet-valve member is retained by mechanical-latch mechanism in its readiness condition, normally clo...	04/01/1986
4533114	Fail-safe actuator for rotary valves An actuator for a rotary valve includes a fail-safe mechanism for automatically opening or closing the valve upon the occurrence of a predetermined condition. The actuator also includes a mechanism for permitting the manual operation of the valve from the...	08/06/1985
4460007	Valve mechanism In a freeze protection valve, a wax actuator is situated in a heat-conductive housing to which heat is conducted from the liquid system being protected. The housing prevents the actuator from triggering the valve to its opened condition while the liquid s...	07/17/1984
4438777	Freeze protection valve with improved resetting capability A freeze protection valve can be reset under cold ambient conditions without the need for artificial heating of the valve's temperature sensor. An auxiliary latch is used to hold the valve element closed. The auxiliary latch is automatically released as t...	03/27/1984
4432383	Attachment for safety valves A restraining block engages the valve stem of a safety valve, holding the valve open. The block is selectively rotatable within an auxiliary housing from a locked to a released position wherein both block and stem are free to move along the stem axis, per...	02/21/1984
4361167	Snap-acting drain valve A snap-acting drain valve for draining a fluid system upon the occurrence of a predetermined temperature condition of the fluid. A spring-loaded valve is held closed against the spring force by a latching mechanism comprising a spring loaded latching leve...	11/30/1982
4295795	Method for forming remotely actuated gas lift systems and balanced valve systems made thereby One or more balanced gas lift valves mounted on an oil production tube deep in a well are responsive to a remote valve control transmitter at the surface for controlling the ejection of a fluid, as a gas for example, into the production tube of oil for de...	10/20/1981
4171472	Geared limit switch A limit switch consisting of a driven member connected to a rotary driver member the operation of which is controlled by the limit switch, so as to turn therewith, one or more poles geared to the driven member so as to be rotated thereby, one or more fing...	10/16/1979
4158398	Dump valve assembly A two-position dump valve for use in a vacuum powered or pressure differential powered cruise control system. The dump valve is closed upon energization of a solenoid, provided the brake pedal is in the brake release position. It opens when the brake peda...	06/19/1979
4043350	Emergency gas shut-off unit mounted on gas pressure adjusting unit The emergency shut-off unit for escaping gas is comprised of a cylinder and a valve piston that runs through the cylinder, and the cylinder is screwed to a thread hole formed on the bottom wall on straight line extension of a projecting shaft of a diaphra...	08/23/1977

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Class 251/67 - With second diverse control