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| Number | Title | Issue Date |
| 7397012 | High current switch and method of operation An electrical switch which includes an insulative housing having a wall defining an axial bore therein, a first electrical contact disposed in the housing bore and a second electrical contact movably disposed in the housing bore between an open position and a closed... | 07/08/2008 |
| 7316167 | Method and apparatus for protection of contour sensing devices A sheet film protective covering for different types of contour sensing devices is described. In a preferred embodiment, this covering is a mylar sheet film that is coated with a layer of a conductive material. The bottom surface of the mylar film is also preferably... | 01/08/2008 |
| 7223927 | Lockable switch mechanism A locking switch assembly includes a cam, a plunger, and a locking mechanism. The cam is rotatably attached to a frame assembly and an end of the plunger is constructed to follow a contour of the cam. The plunger is movable between a plunger first position and a plu... | 05/29/2007 |
| 7207830 | Electrical box An electrical box suitable for safely and efficiently housing an electrical connection. The electrical box comprises a bottom and a plurality of adjacent side walls, each side wall being at least partially joined to the bottom and to each adjacent side wall to form ... | 04/24/2007 |
| 7119295 | Suspended control device The invention refers to a hanging control device connected to a unit to be managed, specifically control switches or hanging control panels in order to control hoisting gear, by means of a control line, whereby the control line contains electrical lines (2) t... | 10/10/2006 |
| 7045730 | Tamper resistance apparatus for an electrical device and an electrical device including the apparatus An apparatus for preventing tampering into an electrical device container in which a power circuit is at least partially enclosed includes a housing having a first end that is adapted to be positioned adjacent to the power circuit, and a second end that is adapted t... | 05/16/2006 |
| 7009123 | Breaking detector for shear pin A breaking detector for a shear pin having a central bore, comprises an electrically conductive element forming an elongated loop extending on a length of the bore of the shear pin and having upper ends defining contact surfaces adjacent to each other. An electrical... | 03/07/2006 |
| 6838628 | Timer A cam-operated timer for a household appliance including a housing and a switch wafer mounting in the housing used to receive and locate the wafers to prevent inaccuracies in wafer thickness from accumulating through the stack of wafers. The switch wafer mounting in... | 01/04/2005 |
| 6710269 | Foil keyboard with security system The present invention discloses a foil keyboard with a security system for detecting and preventing unauthorized mechanical access to the key contacts. The foil keyboard comprising a foil having for each key an elastic key spring area in which an electrical contact ... | 03/23/2004 |
| 6696769 | Mode switch assembly of automobile having impact/load absorbing apparatus A mode switch assembly of an automobile having an impact/load absorbing apparatus includes a housing disposed in a center facia panel in an automobile, a circuit board installed in the housing, on which a switch having a shaft is installed, a support port... | 02/24/2004 |
| 6674032 | Manual call point A manual call point having a housing base (1), a cover and an alarm insert with a fragile panel (4), a printed-circuit board (3), a switching element (6) and an actuating mechanism. The actuating mechanism for the switching element (6) is formed by a pivo... | 01/06/2004 |
| 6525282 | Pendant switch assembly for controlling a movable hoist A pendant switch assembly for controlling a hoist, includes a transmitter mounted to a housing for wireless transmission of control signals to a receiver mounted remotely with respect to the housing and operatively connected to a power controller of a dri... | 02/25/2003 |
| 6209845 | Keyboard interface A keyboard has a key array including keys, a top surface having a front edge and a back edge, and a bottom surface positioned opposite the top surface. An interface device for use with the keyboard includes a base, a front standoff coupled to the base and... | 04/03/2001 |
| 5967444 | Emergency hammer for breaking panes of glass An emergency hammer comprising a handle and a hammer head. A holding device fastenable to a surface and including a shaped recess on the exterior of the housing of the holding device for receiving the hammer. An anti-theft device comprising a flexible sec... | 10/19/1999 |
| 5880535 | Tap resistant security circuit A tap-resistant security circuit. In the preferred embodiment, the apparatus includes a conduit including an electrically conductive wire surrounded by a gas-filled, gas impermeable sheath. At one end of the conduit is a pressure switch which is normally ... | 03/09/1999 |
| 5578996 | Long life detector A long life, surface mountable ambient condition detector includes a non-replaceable battery for the purpose of providing power to the detector. The detector includes an activation switch mechanism having a one-time, or single use turn-on characteristic. ... | 11/26/1996 |
| 5359168 | Switching and control mechanisms In FIG. 1, an electrical circuit on a circuit board 9 can be controlled by operation of switches 2B, 3B, 4B. These are operated by removing portions of the board 9, effected by the snapping off of respective corresponding cover member portions 2A, 3A and ... | 10/25/1994 |
| 5272292 | Irreversible arrangement for interrupting the functioning of an apparatus controlled by an electronic system The present invention concerns an irreversible arrangement for interrupting the functioning of an apparatus controlled by an electronic system. The purpose of such invention is to provide an arrangement which can be easily manipulated by an inexperienced ... | 12/21/1993 |
| 4857679 | Alarm system An alarm switch has a box for mounting on a supporting surface, a front plate movably mounted in the box, a frangible element having a plurality of frangible areas spaced in succession thereon and each of which can be broken off the frangible elements, a ... | 08/15/1989 |
| 4812604 | Torsion spring contact switch A push button switch assembly. A switch housing supports two parallel conductive switch contacts. A torsion spring wiper member carried by a push button switch actuator selectively bridges the gap between the conductive switch contacts. The torsion spring... | 03/14/1989 |
| 4737608 | Convertible rotary switch A rotary switch convertible from being operable over a smaller range of angular motion, e.g. as a two-position switch, into being operable, in either of two configurations, over larger ranges of angular motion, e.g. as a three-position switch. A rotor and... | 04/12/1988 |
| 4554424 | Electrical switch A normally-open pressure actuatable switchmat comprising first and second electrically conductive members separated by non-conductive material having a failsafe safety switch is provided. When the switchmat is subjected to an actuation load, there is rela... | 11/19/1985 |
| 4302637 | Hermetically sealed switch assembly A switch assembly including a base member having a contact receiving cavity open at the top and defined by a floor that is laterally enclosed by side wall means, first terminal means in the cavity adapted for electrical connection to outside circuitry, se... | 11/24/1981 |
| 4262469 | Apparatus for closing boxes An apparatus for closing boxes comprising a conveyor for bringing a box in centralized position between two vertically arranged transport belts which can be moved toward each other to engage the side walls of the box the four top flaps of which are open, ... | 04/21/1981 |
| 4230918 | Vehicle window glass breakage detector Motor vehicle windows are commonly made of a tempered glass which shatters over its entire area whenever any part of the window is broken. Further, such windows are generally supported at the bottom edge by a channel which extends only part way along the ... | 10/28/1980 |
| 4229633 | Programmable switch A programmable switch in the form of an output display similar to those generally known in the art as a seven-segment display used for digital display of output. This programmable switch provides a plurality of segments that can operate as a switch to gen... | 10/21/1980 |
| 4062469 | Electronic instrument case An electronic instrument case formed of breakable plastic and having a section of reduced thickness which is firmly secured to the remainder of the wall of such enclosure by a retainer. Such reduced thickness section can be broken away from the remainder ... | 12/13/1977 |
| 3936621 | Destructible type switch having frangible conductive element A detector comprises a brittle support for an electrical conductor adapted to fit adjacent a closure (e.g. a bursting disc) so that when failure occurs, electrical continuity in the conductor is broken by fracture of the support and cannot be fortuitously... | 02/03/1976 |
