Class 200/83B - Special diaphragm

Subclass of Class 200 - Electricity: circuit makers and breakers
No. of patents: 44
Last issue date: 04/29/2008

Number	Title	Issue Date
7365277	Buffer assembly for a pressure sensitive switch A buffer assembly includes a housing adapted to sealingly connected to the pressure switch and defining therein a chamber and an airway defined in a bottom face of the housing to communicate with an interior of the housing so as to communicate with an inlet of the p...	04/29/2008
7319201	Waterproof/dustproof structure A simple, inexpensive waterproof/dustproof structure for a movable mechanism such as a machine tool apparatus or the like, providing a liquid reservoir formed between the inner wall of a stationary member and the outer wall of a movable member at a portion equivalen...	01/15/2008
7301113	Diaphragm for use in switch, method for manufacturing thereof, membrane switch, and input device A dome-shaped diaphragm includes a convex portion; a base portion provided on an outer periphery of the convex portion; and a pressing force reducing portion provided in at least one of the convex portion and the base portion. Examples of the pressing force reducing...	11/27/2007
7285423	Penetrable pressure proof sealing for a container A seal mechanism, apparatus and method are suggested for confining a chemical reaction in a reaction vessel that is accessible through a self-sealing diaphragm. A movable plunger is reversibly operable between a retracted position where the diaphragm is accessible f...	10/23/2007
7256361	Pressure switch A pressure switch includes a body, a lower cap and an upper cap respectively mounted to two opposite ends of the body. A casing is airtightly sleeved on an outer periphery of each of the lower cap and the upper cap. There are two electrodes disposed in the body and ...	08/14/2007
7240557	Sensor, measurement cell for use in a sensor and a process for producing a measurement cell A ceramic pressure measurement cell for use in a sensor for static and/or dynamic monitoring of the pressure of a liquid or flowable medium which includes a base body and a membrane connected to the base body such that one side of the membrane is in contact with the...	07/10/2007
7161476	Electronic tire management system An electronic tire maintenance system is provided for measuring a parameter of a device at a first location. The system includes a sensor for measuring the device parameter and generating a data signal representing the measured parameter. The system also includes a ...	01/09/2007
7078637	Low air pressure switch for automobile A low air pressure switch for an automobile is formed in a water resistance structure in which a connector has an integral terminal and switch body so that a moisture input passage into the interior of a switch is fully disconnected. An air outlet for an air dischar...	07/18/2006
7071430	Adjustable pressure element, particularly for electric household appliances The sensor comprises a body in which a diaphragm is mounted so as to define a variable-volume chamber to which a fluid pressure is supplied in use, and a plurality of electrical switches connected to the diaphragm so that the diaphragm can bring about switching of t...	07/04/2006
6963039	Button knob waterproofing design A waterproof button knob includes an elastic button seat with a housing trough mating with a button port of a case. The button seat isolates the interior and the exterior of the case to achieve waterproofing. The housing trough has a plurality of apertures on the bo...	11/08/2005
6580042	Circuit board integrated pressure switch A pressure switch integrated onto an electronic circuit board for sensing when the ambient pressure reaches a specified value. The pressure switch is low profile, reliable and has a set point that can be configured at, or after, the time of installation o...	06/17/2003
5932857	Pressure switch with biaxially oriented thermoplastic diaphragm A pressure responsive electric switch (10) is shown having an improved flexible diaphragm (28) to extend the useful life of the switch particularly when used with fluid media of a corrosive nature. The flexible diaphragm (28) comprises a base layer (28a) ...	08/03/1999
5471022	Pneumatic acutated switch A diaphragm assembly for movement in response to a pressure increase exerted thereon comprised of a resilient flexible diaphragm having a first surface with a predetermined profile when said diaphragm is in a neutral, unflexed condition, the diaphragm hav...	11/28/1995
5294760	Digital pressure switch and method of fabrication A micromachined pressure switch and method of fabrication from silicon wafers using aligned fusion bonding. Pattern etched thermally grown silicon dioxide insulating pads are used to determine the size of silicon pressure membranes on an upper silicon waf...	03/15/1994
5281782	Diaphragm pressure switch A diaphragm for a diaphragm pressure switch used to sense paint pressure in an airless, piston-type paint spray gun includes a disc-shaped, deflectable, chemically-inert primary member and a washer-shaped, secondary, resilient member located behind the pr...	01/25/1994
5224625	Spray apparatus having pumping mechanism and control means therefor A spray apparatus includes a spray device which indirectly controls the activation and deactivation of a pump in a remote pumping mechanism. The spray device includes a control assembly which is adapted to control the fluid flow through the device. The co...	07/06/1993
5134889	Mechanical transducer A mechanical transducer is disclosed which includes a converter having a plurality of elongate flexible elements, which are joined together at their opposite ends and spaced at intervals around a longitudinal axis of the transducer. The opposite ends of t...	08/04/1992
5094644	Doll having delayed wetting and crying action A doll includes a hollow head and torso and generally replicates a human infant in appearance. The head portion defines an orifice for the introduction of a liquid such as water through simulated nursing. The water is initially received within the doll in...	03/10/1992
5073124	Electrical interconnection system utilizing fluid pressure deformed tubular contact An electrical interconnection is provided between a tubular element (10) formed of a thin walled plastic material made conductive (16) and a further contact (18,56) by fluid pressure driving the material to engage the further contact. Positive and negativ...	12/17/1991
5028749	Pressure switch A pressure switch for use in a device for alarming the reduction of pneumatic pressure of vehicle tire is disclosed. The switch comprises a base board, a bellofram secured to the base board and having conductive coating of one electric contact applied to ...	07/02/1991
5015808	Normally open pressure switch A normally open pressure responsive switch having upper and lower housings with a snap acting member and an electrically conductive member sandwiched therebetween. The housings each include a body with a hollow center portion and the lower housing has a c...	05/14/1991
4973804	Low profile inertia switch A diaphragm-type inertia switch for sensing deceleration places the inertial mass in the chamber that contains the contacts. The other chamber has a thin concave-convex shape that gives the switch a low profile. The switch has a molded plastic base contai...	11/27/1990
4894639	Pressure switch for monitoring tire pressure, particularly of motor vehicle tires A pressure switch for monitoring a tire pressure of a motor vehicle tire is fastened to a wheel rim and is actuated by the inflating pressure in the tire. The pressure switch comprises a reference pressure chamber which is sealed off by an electrically co...	01/16/1990
4667069	Multiple disc pressure responsive control device A pressure responsive control device having a pressure housing assembly defining a pressure chamber, an actuable controller fixed to the housing assembly and, a pressure transducer hermetically closing the pressure chamber. The transducer includes plural ...	05/19/1987
4585913	Bellows device A bellows device having a plurality of recesses and ridges in the direction of expansion and contraction is used for a movable part of a vacuum switch tube. The thickness of an middle part in the direction of expansion and contraction is 1.2 times or more...	04/29/1986
4565920	Fail safe thermal control device This invention relates generally to thermal control apparatus wherein a change in temperature is transmitted from a sensing bulb through a capillary to a control device. More particularly this invention is related to a novel, fail-safe control device for ...	01/21/1986
4532490	Fail safe high limit control Temperature limit control having a normally closed contact switch secured to a formed cup with vacuum operated formed diaphragm seal to cup bottom, contacts open on reduced vacuum as by boiling thermal fluid in the linear capillary tube welded to the cup ...	07/30/1985
4532390	Diaphragm pressure switch for controlling small pressure gradients A pressure switch for detecting and controlling small pressure gradients in fluid circulation systems includes a containing body having first and second channels formed therein, and an elastically deformable diaphragm. The diaphragm is supported at its ed...	07/30/1985
4473729	Pressure responsive switch A sealed pressure-responsive switch is manually resettable and trip-free. The switch has a separate snap-acting, bistable, dished metal disc or disc element disposed between a sealed snap-acting pressure-responsive diaphragm and a spring-biased switch arm...	09/25/1984
4469923	Pressure responsive switch with discrete pressure responsive unit A relatively low cost, high performance pressure responsive switch device comprises a base, switch means mounted on the base, and a discrete pressure-responsive unit which is separately testable for predetermining its pressure response characteristics and...	09/04/1984
4446344	Pressure operated switch including an expandable flat tube Apparatus and method are disclosed for actuating a desired device, such as a switch controlling a pump, in response to a predetermined pressure condition in a selected environment of varying pressure, such as closed vessel. A tube having a flattened segme...	05/01/1984
4400628	Control device and method of making A control device has a housing with an electrical circuit therethrough, and at least a pair of switch means are operable between a pair of switching modes for controlling the electrical circuit. Resistor means are connected in series circuit relation with...	08/23/1983
4355761	Pressure sensor and regulator for airless material coating system An airless paint or material spray system having a pressure sensor and regulator for controlling the pressure of paint flowing from a paint pump to an airless spray gun. The pressure sensor and regulator includes three contiguous flexing diaphragms in a m...	10/26/1982
4342894	Electrical switch construction diaphragm seal therefor and methods of making the same An electrical switch construction having a housing carrying an electrical switch and an actuator for actuating an operating plunger of the electrical switch, the construction having a flexible diaphragm seal disposed against the electrical switch to seal ...	08/03/1982
4259553	Transport hose with leak detecting structure A transport hose floating on the sea surface and transporting petroleum or like fluid from a tanker to an oil reservoir installation on land or vice versa, comprising a leak detector operative in response to the presence of a leak fluid to indicate that p...	03/31/1981
4216360	Low voltage vacuum switch with internal arcing shield An improved low voltage, high current D.C. vacuum switch is provided by disposing an arcing shield annularly about the arcing contact area within the vacuum switch. The arcing shield prevents disposition of conductive contact material on the insulator bod...	08/05/1980
4212591	Pressure control for pumps An adjustable pressure control device relies on the change of shape or position of a control hose portion responsive to internal pressure of fluid being transmitted therethrough to control the fluid pressure produced by a pump. One embodiment of the devic...	07/15/1980
4211901	Pressure sensing switch with conductive deflectable diaphragm A pressure sensing switch for transducing the change of pneumatic pressure to an electrical signal comprises a diaphragm made of a material having a Young's modulus E of 1.0×104 -2.1×104 kg/mm2, a Poisson's ratio V of 0....	07/08/1980
4194105	Switches An electrical switch contact member consists of a resilient electrically conductive domed diaphragm of a predetermined shape. The diaphragm includes a frusto-conical region linking a central region of the diaphragm with a peripheral region. The frusto-con...	03/18/1980
4109118	Keyswitch pad The keyswitch pad includes a plurality of keyswitches on a common backing member, each of the keyswitches including a fluid filled bag underneath a key cap. The bags of the keyswitches are interconnected and the system of bags is closed so as to be of lim...	08/22/1978

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Class 200/83B - Special diaphragm