Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7372350 | Electromagnetic relay An electromagnetic relay is provided which is small in size and is capable of controlling two circuits of an ordinarily-open contact, which has a large current-carrying capacity and high interrupting capability, and which is excellent in resistance against shock and... | 05/13/2008 |
| 7301334 | Micro magnetic proximity sensor system A system that senses proximity includes a magnet producing a magnetic field and a sensor having a switch. The switch includes a cantilever supported by a supporting structure. The cantilever has a magnetic material and a longitudinal axis. The magnetic material make... | 11/27/2007 |
| 7109832 | Relay In one embodiment, a method for reducing signal noise in a relay having pass-through and attenuator circuits which are alternately closed by operation of an armature assembly of the relay is disclosed. In accordance with the method, the armature assembly is provided... | 09/19/2006 |
| 6788176 | Bounce-reduced relay In a relay (1) with two parallel contact springs (2a, 2b) which close or interrupt the electric circuit between a first and a second relay contact (3, 4), whose one end is connected in a conducting fashion to the first relay... | 09/07/2004 |
| 6498552 | Electromagnetic relay Electromagnetic relay having a bobbin (1), a mobile contact sheet (2) which is displaceable between two fixed contact sheets (3), an armature (11), a magnetic core (43) and a signaling plate (4) indicating the operation mode of the relay. Means are provid... | 12/24/2002 |
| 6356174 | Operator for an electromagnetic switching device An operator assembly for an electromagnetic switching device includes a pair of insulative boards arranged in mutually facing relation. A first board carries first contacts, which may be arranged in pairs, while a second board carries second contacts desi... | 03/12/2002 |
| 6252479 | Electromagnetic relay and process for producing the same The relay comprises a first housing part in which a coil having a U-shaped core is embedded, as well as a second housing part in which at least one spring support as well as at least one mating contact element are anchored. A contact spring with a flat ar... | 06/26/2001 |
| 6246305 | Apparatus and method for operating a micromechanical switch A micromechanical switch and a method for operating the micromechanical switch between an open position and a closed position by moving a magnet between two positions. The magnet produces a magnetic flux that travels through a magnetically conductive laye... | 06/12/2001 |
| 6229417 | Operator for an electromagnetic switching device An operator assembly for an electromagnetic switching device includes a pair of insulative boards arranged in mutually facing relation. A first board carries first contacts, which may be arranged in pairs, while a second board carries second contacts desi... | 05/08/2001 |
| 6140895 | Electromagnetic relay An electromagnetic relay having an armature-spring subassembly that matingly cooperates with a base body having stationary and moving contact elements and stationary terminal elements. The armature-spring subassembly includes a contact arrangement and an ... | 10/31/2000 |
| 6133813 | Electromagnetic relay A relay has a leaf spring that is secured to a planar seating section of a yoke leg and/or to the planar seating section of the armature and has an unsecured spring section extending beyond the free end of the yoke leg or, respectively, the armature. In o... | 10/17/2000 |
| 5994987 | Contact mechanism for electronic overload relays An improved trip mechanism for an overload relay includes a housing, a bistable armature mounted in the housing on a pivot for pivotal movement between two stable positions and fixed contacts within the housing. Moveable contacts are located within the ho... | 11/30/1999 |
| 5936496 | Electromagnetic relay An electromagnetic relay is provided with a coil body that is preferably composed of ceramic with a winding and a U-shaped core yoke whose ends are bridged by a flat armature. The armature actuates an insulating switching spring made of ceramic or a simil... | 08/10/1999 |
| 5894255 | Electromechanical relay The present disclosure is directed to a relay. The relay includes a frame and a header seal assembly base having contacts and a return spring. The relay also includes an armature assembly which engages the return spring. The armature assembly has at least... | 04/13/1999 |
| 5880654 | Electromagnetic relay An electromagnetic relay comprising a smaller number of components and would be shorter than its predecessors. A movable block and a contact mechanism in a conventional relay are arrayed in a linear fashion, which tends to increase the length of the relay... | 03/09/1999 |
| 5579198 | Apparatus for interrupting electrical power between two conductors A circuit interrupter provides a conducting path between two conductors and interrupts the conducting path in response to overcurrent conditions in the conductors. The interrupter includes a magnetic core around which the conductors are disposed. Each con... | 11/26/1996 |
| 4939492 | Electromagnetic trip device with tripping threshold adjustment The tripping adjustment range of a magnetic trip device with a plunger core is increased by providing, in the movable plunger core, a groove whose edges define polar surfaces bounding air-gaps with the edges of the yoke in such a way as to generate in the... | 07/03/1990 |
| 4695813 | Polarized electromagnetic relay A polarized electromagnetic relay includes a flat-shaped armature pivotally supported at its center, an electromagnet with a pair of pole members extending toward the armature ends on either side of the center pivot axis, and a three-pole magnetized perma... | 09/22/1987 |
| 4535311 | Contact support means for an electromagnetic relay In an electromagnetic relay, a first stationary contact member (25) has a first, elongated portion (25a) extending between first and second insulative supports and a second portion (25b) extending in a direction normal to the first portion. The second por... | 08/13/1985 |
| 4491813 | Electromagnetic relay An electromagnetic relay has a bar-shaped armature which is mounted at one end at a coil flange in a carrier comprised of insulating material, in which center contact blades are also mounted at opposite sides of the armature such that movement of the arma... | 01/01/1985 |
| 4490705 | Electromagnetic relay A relay has a bar-shaped armature which is seated at a location of one coil end over an armature carrier comprised of insulating material. For the purpose of seating, taut bands projecting in a direction of the rotational axis of the armature are integrat... | 12/25/1984 |
| 4064470 | Obturator structure for silent automotive relay The specification describes a device termed a silent obturator which is in the form of a flexible strip having at least one mounting hole at one end portion at least and supported in bowed or arcuate configuration between two supports, one of which is mov... | 12/20/1977 |
| 3964005 | Electro-magnetic assembly Two relays and a push-to-start switch are mounted together on a common frame within a common housing. The cores and coils for the devices are mounted in spaced parallel relationship on the frame. Three legs which extend from one side of the frame are supp... | 06/15/1976 |
