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 |
| 7423504 | Electromagnetic relay An electromagnetic relay is provided which is capable of reducing a contact bounce at time of closing a contact. The electromagnetic relay is so configured that an opposed angle θ is 0° | 09/09/2008 |
| 7113062 | On-board circuit breaker with reset enable mechanism An on-board circuit breaker that includes a push-button that enables the circuit breaker to be reset by depressing it, a power supply terminal and distribution terminal, two breaking contacts, and a main bimetal strip. Thermal deformation of the main bimetal strip t... | 09/26/2006 |
| 7091805 | Electromagnetic relay An electromagnetic relay has a mobile contact point attached to a contact member, a fixed contact point, a contact point spring that applies a biasing force on the contact member towards the fixed contact point, a guide that carries the contact member and said conta... | 08/15/2006 |
| 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 |
| 6816044 | Electrical switching element An electrical switching element comprising a housing having an elongated base. An electrical coil is wrapped around a yoke and arranged in the housing such that a center axis of the electrical coil is positioned parallel to the elongated base of the housing. An arma... | 11/09/2004 |
| 6778047 | Relay with a coupling element A relay with coupling element consists of at least one spring bracket with an active and a passive contact spring. In order mechanically to couple several such relays with one another, a coupling element is provided which is pluggably connectable with the respective... | 08/17/2004 |
| 6765464 | Electromagnetic switching relay and method for accurate arrangement of a magnetizing coil in an electromagnetic switching relay An electromagnetic switching relay having a base member and a magnetized coil. The base member having first guide elements. The magnetized coil having a terminal and second guide elements positioned substantially between the first guide elements that engage the firs... | 07/20/2004 |
| 6661320 | Relay A safety relay comprising an electrically insulating carrier part, an electromagnetic drive arranged on the carrier part, at least one control contact arranged on the carrier part, at least three load contacts arranged on the carrier part wherein each of ... | 12/09/2003 |
| 6549108 | Relay A safety relay comprising a separating wall, an electromagnetic drive located on a first side of the separating wall comprising a coil with core and yoke, the coil being connectable to a control current, the core being oriented parallel to the separating ... | 04/15/2003 |
| 6075429 | Single pole relay switch A single-pole relay switch capable of effective arc extinction irrespective of the current flowing directions in which the device is connected in a circuit. The switch has a housing and two sets of contacts located in the housing, each set being composed ... | 06/13/2000 |
| 6034585 | Switching device The invention relates to a switching device having a main electromagnetic drive for connecting and disconnecting a moving contact piece to fixed contact elements, and having an auxiliary electromagnetic drive which, in the event of an overload current flo... | 03/07/2000 |
| 5945900 | Electromagnetic contactor An electromagnetic contactor includes an iron core members formed of a first core bent in a U-shape, and a second L-shaped core contacting the first core. A coil is wound around a spool disposed on an upper arm of the first core and the second core to for... | 08/31/1999 |
| 5907268 | Electromagnetic relay A relay is provided with fixed contact mounts anchored in a base, as well as contact springs arranged between the fixed contact mounts. The springs are actuated at their free ends. The contact springs each have spring mounts that include terminal segments... | 05/25/1999 |
| 5894254 | Electromagnetic relay A relay is formed by a magnet system containing a wound coil body, an L-shaped core arranged axially therein, an L-shaped armature and a base element with terminal elements. Stationary and moving contact elements are arranged between the base element and ... | 04/13/1999 |
| 5886601 | Electromagnetic relay assembly An electromagnetic relay assembly includes an actuator unit and at least one switch unit detachably connected with the actuator unit. The actuator unit includes an actuator casing accommodating therein an electromagnetic assembly and a movable actuator fr... | 03/23/1999 |
| 5864269 | Electromagnetic hinged-armature relay An electromagnetic hinged-armature relay comprises a contact spring (2) which is arranged on and attached to an armature (1). The contact spring serves as a switching contact spring and has a bounce dampener which is in the form of a swing element (3) mad... | 01/26/1999 |
| 5831502 | Relay with positively guided contact sets Relay with positively guided contact or contact sets, each contact being accommodated in a chamber and being at least partially separated from the adjacent contacts, and, furthermore, an actuator being provided for respectively opening and closing the con... | 11/03/1998 |
| 5568108 | Security relay with guided switch stack and monostable drive A safety relay has a guided contact set and a monostable drive with a H-armature. The individual contacts of the set of contacts are located in separate chambers and are actuated by a common armature. In order to miniaturize the relay while having a low p... | 10/22/1996 |
| 5539364 | Relay Relay having a coil, a magnetic system and a contact system which is actuatable via a comb of an electrically insulating material by the magnetic system and includes two pole paths, with the contact system being arranged in a casing comprised of a base me... | 07/23/1996 |
| 5515019 | Polarized power relay A relay has a polarized magnetic system (2) with a three-pole magnet (17) arranged above a coil (14) and rocking armature (18) which actuates a contact spring (30) arranged beneath the coil by means of a frontally arranged slide (23). The contact spring (... | 05/07/1996 |
| 5392015 | Electromagnetic relay An electromagnetic relay which is small in size, low in power consumption, high in productivity, and long in service life and which operates with high accuracy. The electromagnetic relay in which the electromagnet is energized and deenergized to swing its... | 02/21/1995 |
| 5239281 | Small sized electromagnetic relay In an electromagnetic relay wherein a movable contact spring (9) and a stationary contact spring (10) are inserted by molding into a base block (8), the width of a portion of the movable contact spring and the stationary contact spring within the base blo... | 08/24/1993 |
| 5160910 | Electromagnetic relay An electromagnetic relay, comprising: a case consisting of a terminal base and a cover fitted thereon; a pair of contact units arranged laterally on the terminal base; an electromagnet unit arranged in the case on a longitudinal end of the contact units; ... | 11/03/1992 |
| 5111171 | Relay having contact viewing lenses in the cover A relay with a safety spring set such that the spring contact sets are arranged in chambers, which are freely accessible from the outside via openings when the cover is removed so that the spring contact sets can be manipulated. To prevent broken pieces f... | 05/05/1992 |
| 4707675 | Electromagnetic relay An electromagnetic relay includes a base of electrically insulation for mounting an electromagnet, an armature and at least one contact assembly including a movable contact. Integrally molded with the base is an envelope having side walls and a top wall f... | 11/17/1987 |
