Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8022321 | Hydraulic pressure switch with porous disc as snubbing element A hydraulic pressure switch apparatus includes a porous disc directly installed at a media entry port for dampening and filtration purposes. The porous disc includes a number of pores that are connected together and to the surface of the porous disc for allowing med... | 09/20/2011 |
| 7732722 | Hermetically sealed pressure switch with composite actuation mechanism A hermetically sealed pressure switch apparatus and method includes a metal bellows directly installed at an inlet port for providing hermetic sealing thereof. A spring (e.g. a wave spring) can be connected in parallel or series combination with the metal bellows. T... | 06/08/2010 |
| 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 |
| 7351926 | Rotation-proof enclosure for pressure switch housing A housing for a pressure switch is coupled to a pipeline. The housing has a tubular body with an explosion-proof enclosure attached to the body with a retainer sleeve inserted through an opening in the enclosure and threaded into the body to secure the enclosure to ... | 04/01/2008 |
| 7339126 | Variable differential adjustor A variable differential adjustor for a fluid pressure-actuated switch, with the fluid, in the preferred form of the invention, being air. The restrictor has a restrictor housing having a passage through which a pressure source has a portion which passes on its way t... | 03/04/2008 |
| 7318313 | Switch A switch in particular for a master cylinder unit, for opening and/or closing an electrical circuit, for example, for switching on the brake lights, comprises a casing suitable for being housed in a compartment of the cylinder body, a first electrical contact fixed ... | 01/15/2008 |
| 7308829 | Differential pressure indicator and method of manufacture A differential pressure indicator and method of configuring a differential pressure indicator is provided. The differential pressure indicator is configurable to provide open circuit or closed circuit logic and includes a housing, a pressure responsive element, a po... | 12/18/2007 |
| 7219781 | Electromagnetic suspension system An electromagnetic suspension system comprises a universal joint mechanism for permitting radial movement of a cylinder relative to a center yoke while preventing axial movement of the cylinder relative to the center yoke. Since the cylinder is capable of radial mov... | 05/22/2007 |
| 7127875 | Portable vacuum device A portable vacuum device for extracting fluid in a container having an opening includes a handheld housing, a fluid extracting nozzle, a vacuum device and a sensor switch. The fluid extracting nozzle has a vacuum pressure corresponding to an interior pressure of the... | 10/31/2006 |
| 7114207 | Inflatable product provided with electric air pump An inflatable product includes a first chamber, a first mechanically-controlled valve, an air pump, a first switch and a switch circuit. The air pump inflates the first chamber through the first mechanically-controlled valve. The first switch activates the air pump ... | 10/03/2006 |
| 7112753 | Pressure switch A water pressure switch employs two pivotable plates and springs to control the activation of the pump. The arrangement of the two pivotably plates, the springs and the activation device reduces the space required so that a small box can accommodate all the parts. | 09/26/2006 |
| 7100879 | Speaker bracket Systems and techniques to simply, easily and quickly attache and detach a speaker to a mounting location. A speaker bracket can provide a pivot point for the speaker that also serves as an audio signal connection point. The speaker bracket can be built in a robust f... | 09/05/2006 |
| 7084363 | Variable differential adjustor A variable differential adjustor for a fluid pressure-actuated switch, with the fluid, in the preferred form of the invention, being air. The restrictor has a restrictor housing with a fluid passage in which a restrictor plug, typically a set screw, is engaged. By j... | 08/01/2006 |
| 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 |
| 7063537 | Rotatable assemblies and methods of securing such assemblies A rotatable assembly and a method to use the same are provided. In particular, the assembly includes a first field device housing arrangement associated with a first electrical system, and a second field device housing arrangement associated with a second electrical... | 06/20/2006 |
| 7045726 | Pressure regulator for a paint ball gun A pressure regulator for a paint ball gun includes a cylinder, a piston unit, an elastic member, a top connector and a switch bolt. The cylinder includes upper and lower chambers. The piston unit includes a ring plate and a tube. The ring tube is disposed in the upp... | 05/16/2006 |
| 7038151 | Damped pressure switch The pressure switch, constituted by a cylindrical body, comprises two portions which are interconnected; also, a first of the portions is connected to a micro-switch and the second to an inlet for pressurise fluid delivery. A stem is housed inside the cylindrical bo... | 05/02/2006 |
| 6881913 | Pressure operated safety switch A pressure-operated safety switch is applied to a point in the compressed air system, which requires monitoring for presence of pressurized air. Pressurized air is introduced into the switch through a tube or other suitable fitting at the point needing monitoring. T... | 04/19/2005 |
| 6855897 | Water treatment apparatus and components A portable water treatment apparatus including: a pump, a coarse filter means, an adsorbent filter means, a fine filter means, a silver ion generator downstream of the pump and in series with the adsorbent filter and control means for controlling the operation of sa... | 02/15/2005 |
| 6717079 | Electrical switches and methods of establishing an electrical connection An electrical switch includes a tubular housing constructed substantially of a non-conductive material, a first electrical contact positioned at one end of the housing, a second electrical contact positioned at a second end of the housing, and a shuttle selectively ... | 04/06/2004 |
| 6414254 | Electrical pressure sensing switch An electrical pressure sensing switch for a pressure cooker comprises a plunger slidably and sealingly mounted in a lid of a cooking vessel. The plunger is moved towards one end of a pivoted lever when pressure rises inside the vessel. The other end of th... | 07/02/2002 |
| 6291791 | Switch for power supply circuit of electric discharge machine A switch is disclosed for use in a power supply circuit for supplying electric discharge power between a tool electrode and a workpiece. It includes, a movable contact (12) having a piston (12A) and a piston rod (12B) attached to a bottom surface of the p... | 09/18/2001 |
| 5990428 | Pressure switch for hydraulic pump An easily assembled, low cost pressure switch for a hydraulic pump is proposed. An oil pressure introducing hole is provided for leading a discharge pressure to a depression formed in a body which is earthed. A plug supporting an electrically conducting t... | 11/23/1999 |
| 5881917 | Beverage dispenser having improved actuator mechanism A dispenser includes a plurality of beverage dispensing valves mounted thereto along a front end thereof Each valve includes an air switch that is pneumatically operable to turn its associated valve on and off. An equal plurality of air actuators are secu... | 03/16/1999 |
| 5811894 | Safety module A safety module which is intended to be used in an oil or gas production installation and to be lowered to a required depth with an electrically operable tool connected thereto, and which comprises a housing (2), a pressure sensitive switch (3) and a temp... | 09/22/1998 |
| 5793131 | Systems and apparatus for controlling energization of electric motor windings, and methods of assembling motors Systems and apparatus for integrating an air switch and a power cord into an electric motor, and methods for assembling an electric motor including an integral air switch and an integral power cord, are described. In one embodiment, an air switch and a po... | 08/11/1998 |
| 5586688 | Electric pump toy water gun A water gun 10 having a storage tank (18), a pressure tank (19) and an electric pump (28) for conveying liquid from the storage tank to the pressure tank. The conveyance of liquid into the pressure tank causes the liquid to be pressurized by air compresse... | 12/24/1996 |
| 5436420 | Electrical circuit assembly and method of operation An electrical circuit assembly (100) includes an electrically actuatable clamping arrangement (108) that provides a reliable, solderess electrical connection between two electrical circuits (104, 106). The present invention is readily adaptable for use wi... | 07/25/1995 |
| 5432310 | Fluid pressure operated switch with piston actuator Pressure switch for moving an electrical contact arrangement including a switch frame supporting fixed contacts and movable contacts, the movable contacts being supported particularly on a contact carrier of the switch frame which is pivoted about a first... | 07/11/1995 |
| 5321220 | Pressure switch A pressure switch comprises an electrically conductive housing, a stationary contact stationarily installed in the housing and a movable contact movably received in the housing. The movable contact is movable to contact with the stationary contact. A hydr... | 06/14/1994 |
| 5317954 | Pressure switch assembly The present invention provides a pressure switch assembly for monitoring a source of fluid pressure. In one embodiment, the pressure switch assembly senses a variation of fluid pressure for actuation of a micro-switch to open or close an electric circuit.... | 06/07/1994 |
| 5308939 | Pressure equalizing mechanism for a pressure switch An inner space of an outer case is partitioned by a gas permiable diaphragm into a fluid pressure operating chamber and a reference pressure operating chamber. The former chamber communicates with a pressurized fluid inlet hole formed in the case, and the... | 05/03/1994 |
| 5304757 | Combination differential and static pressure switch A combination differential and static pressure switch utilized in a test system for detecting the occurrence of a differential pressure condition within the test system. The test system includes a valve assembly in flow communication with the pressure swi... | 04/19/1994 |
| 5298702 | Pressure medium drive for closing and opening the contacts of a circuit-breaker The pressure medium drive is provided for opening and closing the contacts (e1, e2) of an electric circuit-breaker. It contains a pressure medium reservoir (r), a drive piston (t) which slides in a drive cylinder (c) and acts on a me... | 03/29/1994 |
| 5281781 | Apparatus for switching a high-current power source Apparatus for switching a high-current power supply, for example for transportable melting systems in melting and remelting plants, with a stationary apparatus part and a movable apparatus part, a contact surface between the stationary and the movable par... | 01/25/1994 |
| 5278367 | High pressure responsive switch and method for making same A pressure responsive switch is shown having an electrically conductive body 12 formed with a bore 24 which extends from one side through the body into recess 30 formed in the opposite side of the body. A switch assembly 34 is received and locked in the r... | 01/11/1994 |
| 5256840 | Holding device for piston position detector Holding device for a piston position detector, contained in a casing and being displaceably mounted on the outside of a fluid pressure cylinder. The holding device consists essentially of a U-shaped yoke being displaceable along two mutually parallel guid... | 10/26/1993 |
| 5252796 | Signal tube operated switches A signal tube operated switch includes a contact arrangement which is moved from a first, open circuit position to a second, closed circuit position by a shock wave or pressure pulse initiated by a detonator. The switch is preferably an electric switch an... | 10/12/1993 |
| 5235324 | Detector for over-pressure inside a pipe and a pump fitted with such a detector The invention concerns a simple, inexpensive and small detector, particularly for use in the medical pumps, for detecting over-pressure in a pipe (1) and setting off an alarm when an over-pressure is detected. The detector for detecting over-pressure in t... | 08/10/1993 |
| 5233142 | Snap action electrical switching mechanism with dual set points A first belleville spring, having a given preload, controls a translatable, elongate, contact disc assembly, to cause a shunting disc to remove from, and close into contact with a pair of circuit contacts. The assembly is disposed within a translatable ca... | 08/03/1993 |
