Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8173919 | Seat belt buckle fastening detector and seat belt buckle A seat belt buckle fastening detector 40, which detects the existence of seat belt fastening, includes a printed circuit board 41 including a normally-closed contact NC, a normally-opened contact NO, and a common contact COM. A slider 42 electri... | 05/08/2012 |
| 7202427 | Switch contact arrangement comprising a device for increasing a contact-force acting between switch contacts A switch contact arrangement for a power switch is provided with a device for increasing the contact force acting between switch contacts. The device includes a cavity which is made in a stationary conductive element of the switch contact arrangement in such a manne... | 04/10/2007 |
| 7115829 | Switch A switch includes a contact mechanism having at least one contact and defining a longitudinal axis. Actuation of a handle moves the contact mechanism transversely to the longitudinal axis between an open position and a closed position in relation to at least one fix... | 10/03/2006 |
| 7061350 | Electromagnetic relay with a triple contact bridge The invention relates to an electromagnetic relay with an electromagnetic coil for exciting a magnetic field and an iron circuit for guiding the magnetic field, wherein the electromagnetic coil surrounds at least part of the iron circuit and the iron circuit compris... | 06/13/2006 |
| 7032294 | Method of making switchable shunts for integrated lead suspensions A switchable shunt has an insulating layer separating conductive lead and spring metal layers. The shunt includes a base region formed on the spring metal layer, one or more arms formed in the conductive lead layer and at least one of the insulating and spring metal... | 04/25/2006 |
| 6518521 | Switchable shunts for integrated lead suspensions A switchable shunt has an insulating layer separating conductive lead and spring metal layers. The shunt includes a base region formed on the spring metal layer, one or more arms formed in the conductive lead layer and at least one of the insulating and s... | 02/11/2003 |
| 6323448 | Circuit breaker stab contact assembly with spring clip A stab assembly (41) in which a spring clip (24) and a conductor member (16) define a pair of engagement surfaces for engaging a stab blade (12). The conductor member (16) has an opening (34) to allow for the insertion of an extended surface of the spring... | 11/27/2001 |
| 6013883 | Miniature electrical switch A miniature electrical switch that can be mounted on a circuit board, includes a dielectric housing (12) with a forwardly-opening cavity (26), a first contact (16) lying primarily within the cavity, and a second contact (14) lying outside the cavity and e... | 01/11/2000 |
| 5886602 | Contact-unit slide for contactors A contact-unit slide for contractors which includes an insulating body in which windows are drilled wherein in each of these windows a contact bridge and a compression spring associated with the contacts are housed, the slide being moved by the mobile par... | 03/23/1999 |
| 5539167 | Blade suspension assemlby for a circuit breaker A blade suspension assembly for a circuit breaker comprises a pivot pin, a torsion spring, an elongated blade, and a blade carrier. The torsion spring includes a lateral middle section, a pair of end legs disposed on opposite sides of the middle section, ... | 07/23/1996 |
| 5502285 | Contact-separating device for circuit breakers A device for separating a pair of electric contacts which tend to weld and consist of a stationary contact 11 and a contact 12 which is movable away from the stationary contact, particularly in a circuit breaker is provided. The device includes a tripping... | 03/26/1996 |
| 5401924 | Remote battery switch A remote battery switch for motor vehicles provides for the remotely controlled disconnection and connection of the vehicle electrical system, for long term storage or carjacking threats. The switch attaches directly to the side terminal or top post conne... | 03/28/1995 |
| 5396036 | Roller contact device Disposed before and behind stationary contacts 6U and 6L are one pair each of roller contacts 5FM and 5FH, and 5BM and 5BH which are supported collectively at the upper and lower ends thereof by bridge links 4FU and 4FL, and 4BU and 4BL. These paired uppe... | 03/07/1995 |
| 5359161 | Non-linear spring for circuit interrupters The invention provides a spring exerting a non-linear force between a contact carrier and a contact blade in a circuit interrupter. The inventive spring includes at least one elongated cantilever. The length of the cantilever has the shape of an arch made... | 10/25/1994 |
| 5310971 | Molded case circuit breaker with contact bridge slowed down at the end of repulsion travel The contact bridge of a molded case circuit breaker is rotatably mounted in a bar by two springs arranged symmetrically from the rotation axis. Each spring is, on the one hand, anchored to the contact bridge, and, on the other hand, anchored to a rod hous... | 05/10/1994 |
| 5173578 | Push button switch assembly Disclosed is a push button switch assembly which is used in the operation panel of an electronic equipment or in the input device of an office automation apparatus. The assembly comprises a pair of upper and lower contacts, a slider body for pressing said... | 12/22/1992 |
| 5145057 | Auxiliary contact unit for an electromagnetic switch A contact device includes a housing, a fixed contact, and a moving contact attached to a support frame, the support frame and moving contact movable within the housing perpendicular to the fixed contact. A stopping arm projects from the support frame to r... | 09/08/1992 |
| 5017744 | Roller contact device Described herein is a roller contact device wherein, upon moving a drive arm into a contact closing position, a pair of roller contacts are pressed across a pair of stationary contacts through a pair of bridge links and a pair of roller shafts by a pair o... | 05/21/1991 |
| 4926019 | Moving copper pivot A pivoting electrical connected useable in a molded case circuit breaker including a pair of contact plates for contacting the circular contact member of a contact carrying arm. The pivoting electrical connection provides at least three contact locations ... | 05/15/1990 |
| 4794216 | Contact spring for a bistable relay for the switching of high current A contact spring for a bistable relay for the switching of higher current will be described in which the actual contact spring is at least one stranded wire connected in parallel, which takes a part of the currents.... | 12/27/1988 |
| 4789765 | Switch device A switch device comprises a resilient contact member and a support member carrying the contact member. The support member is movable between a first position in which the contact member is in electrically-conductive contact with two conductor elements tha... | 12/06/1988 |
| 4785146 | Electric safety switch with tiltable contact An electric switch wherein a fixed contact is engaged by a tiltable and reciprocable second contact under the action of an elastic washer or a coil spring. The second contact can be tilted by a projection, which extends from the housing, in cooperation wi... | 11/15/1988 |
| 4743723 | Switch assembly with unitary contact guide A switch assembly includes an insulator base with two stationary contacts mounted on that base. A molded insulated tower and insulated post are unitary with the base and form a guide means and anchor means for a movable contact blade which has two movable... | 05/10/1988 |
| 4728756 | Key switch having pivotable housing members and contact positioning posts A multiple position, multiple contact key switch, and method of constructing same, including an electrical contact module having a housing defined by first and second separable housing members which snap together in a direction perpendicular to the longit... | 03/01/1988 |
| 4713507 | Key operated switch for keyboard A key operated switch for keyboards having an improved layer type construction comprising a key carrier and key return spring supporting printed circuit conductors and contacts so arranged as to facilitate fully automatic production of keyboards. The simp... | 12/15/1987 |
| 4707578 | Key operated printed circuit switch A key operated switch for keyboards having a layer type construction of key support carrying printed circuits arranged to facilitate fully automatic production of keyboards. Further, the simple formation of a leaf spring, a key guide and the key stem comp... | 11/17/1987 |
| 4694129 | Circuit board switch having improved switch spring Dual-in-line switch comprises a housing assembly having a plurality of side-by-side slide housings therein. The slide housings each have a spring means therein which bears against a pivoted contact bar which overlaps the first and second switch conductors... | 09/15/1987 |
| 4644120 | Molded case circuit breaker with a movable lower electrical contact positioned by a torsion spring A molded case circuit breaker includes a movable lower electrical contact assembly having a formed stationary conductor member, a movable lower contact arm, a lower contact secured to the upper end of the movable lower contact arm for physically and elect... | 02/17/1987 |
| 4623769 | Continuous-current switch for shorting at least one superconducting magnet winding A continuous-current switch for shorting at least one superconducting magnet winding is provided with at least two contacts, each of which comprises several superconducting conductor sections which are arranged parallel to one another. The superconducting... | 11/18/1986 |
| 4616117 | Double pole circuit breaker A double pole switching device has a plunger which is longitudinally movable in a housing against a spring force and has at least one contact bridge provided with a movable contact switch to operate with immovable contacts, and an element is provided for ... | 10/07/1986 |
| 4554427 | Molded case circuit breaker with movable lower electrical contact A molded case circuit breaker includes a movable lower electrical contact having a formed stationary member, a movable contact arm, a pair of electrical contact compression springs, a contact arm compression spring and a contact secured to the upper end o... | 11/19/1985 |
| 4504713 | Push button electrical switch assembly A push button electrical switch assembly including an actuator biased for resilient reciprocation between predetermined axial limits within a housing. A cover on the housing includes a push button movable between predetermined axial limits. The push butto... | 03/12/1985 |
| 4491814 | Circuit breaker A circuit breaker having a contact opening and closing mechanism including a contact actuator member which is moved between a first position and a second position to close and open the contacts. The movable contact is mounted on one end of an elongated co... | 01/01/1985 |
| 4480242 | Variable torque contact arm for electric circuit breakers A movable contact arm for circuit breakers allows the contact opening characteristics to be determined over an entire range of breaker ratings. The contact arm is provided with a camming surface with the contact closure spring arranged as a cam follower. ... | 10/30/1984 |
| 4477703 | Tripping device for thermal relays A device for tripping thermal relays includes a tilting fork controlled by a pusher which acts on a tension spring which connects a mid point of the fork to a fixed point of the casing of the device. The fork at its free movable end is joined to a contact... | 10/16/1984 |
| 4472701 | Electrical circuit breaker A circuit breaker having a contact opening and closing mechanism including a contact actuator member which is moved between a first position and a second position to close and open the contacts. The movable contact is mounted on one end of a contact carri... | 09/18/1984 |
| 4435627 | High tension circuit breaker A high tension circuit breaker which includes a stationary switching mechanism, a second switching mechanism axially movable in a first axial direction, a first and second arcing contact operatively connected to the movable switching mechanism and a stati... | 03/06/1984 |
| 4431883 | Dual action switch assembly This invention relates to an improved dual action switch assembly in which each of two pairs of electrical contacts is alternatively locked in open position by a tensioned locking element upon the interaction of a driving mechanism partially positioned wi... | 02/14/1984 |
| 4430534 | Switch construction A plastic switch actuator is fitted with a spring so as to impart sliding and rocking motion to a movable contact by virtue of direct engagement between spring and element. The actuator has a depending integral portion received in an opening of the elemen... | 02/07/1984 |
| 4420665 | Moisture proof switch assembly A moisture proof switch in which an elastomeric O-ring is interposed between a push button and a switch housing. The O-ring is normally held in partial compression to prevent entrance of moisture, etc. into the housing and to normally hold a switch contac... | 12/13/1983 |
