Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Application No. | Application Title | Issue Date |
| 20110080238 | POSITION SWITCH AND CIRCUIT BREAKER HAVING THE SAME Disclosed are a position switch and a circuit breaker having the same. As contact plates having an elastically variable height are provided between switch blocks and switch levers, each of a testing contact plate and a running contact plate may compensate for inferior d... | 04/07/2011 |
| 20100066468 | ELECTROMAGNETIC RELAY An electromagnetic relay includes a coil, an armature that is electromagnetically attracted by the coil when current flows through the coil, two fixed contacts, a movable spring disposed to be movable to the fixed contacts, a conductive plate that is connected to the mo... | 03/18/2010 |
| 20070262838 | ELECTROMAGNETIC ACTUATOR, ELECTROMAGNETIC CLUTCH INCLUDING SAID ELECTROMAGNETIC ACTUATOR, AND DRIVING FORCE TRANSMITTING APPARATUS FOR VEHICLE INCLUDING SAID ELECTROMAGNETIC CLUTCH An electromagnetic actuator includes a supporting member supporting an electromagnetic coil around which a wire is wound, a moving member positioned facing the supporting member so as to move forward and backward, and an actuating force transmitting member transmitting ... | 11/15/2007 |
| 20070008053 | Electromagnetic relay To reduce the internal resistance of small electromagnetic relays of a one-circuit three-contact gap type in order to make it possible to allow large electric currents and at the same time to improve the connection between the fixed contacts and the moveable contacts. F... | 01/11/2007 |
| 20060261916 | Hermetically sealed relay having low permeability plastic housing A high voltage relay comprises a hermitically sealed housing made of ethylene vinyl alcohol (EVOH) and having internal components for changing the state of said relay. Terminals are electrically connected to the internal components for connection to external circuitry a... | 11/23/2006 |
| 20060255890 | Electronic device with a moveable case An electronic device with a moveable case comprises an upper cover and a moveable base. The moveable base is a hollow shell, and one side wall of the moveable base is pivoted with one side of the upper cover for the moveable base to rotate around the pivot. Another side... | 11/16/2006 |
| 20060250202 | Relay structure improvement A relay structure includes an iron core which is winded by a coil at one end and arranged an armature at the other end with proper clearance from the iron core, and one or multiple grooves. According to the structure, the grooves can alter the deployment of the magnetic... | 11/09/2006 |
| 20060226938 | Electromagnetic relay To provide a small-sized electromagnetic relay capable of reducing an internal resistance of a contact circuit as much as possible, and also capable of carrying a high current to the relay. The electromagnetic relay includes an electromagnetic driving block composed by ... | 10/12/2006 |
| 20060202786 | Voltmeter relay with rigid connectors designed to connect the coil wire to faston terminals A voltage sensitive relay, in particular of the type designed to provide the starting current of refrigerator compressor motors, wherein the excitation coil (2) of the relay is connected to faston terminals (8, 9), fitted at the base (1), via rigid ... | 09/14/2006 |
| 20060152310 | Electromagnetic relay It is intended to provide an electromagnetic relay which resolves problems of large base size and difference in spring constant. In a facing gap defined between a pair of electromagnet units disposed on a base in parallel to each other and with shaft lines being oriente... | 07/13/2006 |
| 20060145794 | Electrical switching device, relay and electrical apparatus comprising same The electrical switching device comprises at least a first part comprising at least a first magnetizable element and a first contact zone associated with said first magnetizable element, and at least a second movable part comprising at least a second magnetic element an... | 07/06/2006 |
| 20060139133 | Magnet system extrusion coating for a relay A relay has a magnet system with a core partially enclosed by a coil. A yoke has a first yoke leg attached to a first end of the core and a second yoke leg extending parallel to the core. The second yoke leg has an armature mounting portion formed on an upper side of th... | 06/29/2006 |
| 20060132269 | Relay with core conductor and current sensing A relay situated in series between an AC line source and an AC load has a core conductor connected with the fixed N.O. contact, so that load current flows axially through the core of the actuator coil. Alternatively, the fixed N.C. contact may be connected with the core... | 06/22/2006 |
| 20060091985 | Electromagnetic relay To provide a small-sized electromagnetic relay capable of reducing an internal resistance of a contact circuit as much as possible, and also capable of carrying a high current to the relay. The electromagnetic relay includes an electromagnetic driving block composed by ... | 05/04/2006 |
| 20060082428 | Complex relay device A complex relay device has at least one bus bar base plate, two relay units, and a relay case. The bus bar base plate has multiple bus bars that have ends providing terminals and are formed in predetermined circuit patterns. The bus bars are integrated and covered with ... | 04/20/2006 |
| 20060066424 | Electromagnetic relay A relay is provided that has a base, connecting elements, a magnet system with a coil, a core arranged within the coil, an L-shaped yoke, and a plate-shaped armature, wherein the axis of the coil extends parallel to the first yoke leg, and a second yoke leg is connected... | 03/30/2006 |
| 20060066425 | Multi-phase electromagnetic relay assembly and motor assembly An electromagnetic relay assembly enables multi-phase switching as achieved by a certain novel assemblies, including a motor assembly and a union transformer assembly, as cooperatively assembled within a housing assembly. The motor assembly comprises a union coil assemb... | 03/30/2006 |
| 20060055492 | HIGH-TEMPERATURE SHUTDOWN PROTECTING RELAY A high-temperature shutdown protecting relay comprises a base; a L copper pin and a N copper pin are provided on the base with resting contacts provided at their bottoms respectively; stretchy copper blades are provided on the base, which are fit to the L copper pin and... | 03/16/2006 |
| 20060044090 | Ground fault circuit interrupter A ground fault circuit interrupter includes a circuit board, a magnetic relay, and an armature. The circuit board has an opening and the magnetic relay is mounted on a first side of the circuit board and aligned with the opening. The armature assembly is pivotally mount... | 03/02/2006 |
| 20060022778 | Electromagnetic relay For manufacturing a thin electromagnetic relay having desired attractive force, both arms as upstanding portions disposed at both ends of a barrel of a plate magnetic material which is punched to be substantially U-shaped as viewed from the front by press working are be... | 02/02/2006 |
| 20050285704 | DC relay A direct current relay includes a plurality of contact pairs, and a plurality of magnets (5). Each of the plurality of contact pairs is configured having contacts (21, 22, 31) with contact regions (21a, 22a, 31a) d... | 12/29/2005 |
| 20050264386 | 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 vib... | 12/01/2005 |
| 20050248425 | 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 wit... | 11/10/2005 |
| 20050231307 | Switching apparatus with voltage spike prevention A switching apparatus has a conductive housing forming a chamber. The housing has an aperture enabling communication between the chamber and a housing exterior. A rod extends through the aperture, and has a first end within the chamber, and an opposed second end outside... | 10/20/2005 |
| 20050231312 | Electromagnetic relay having at least one relay actuator and a receptacle for relay actuators A double relay is described which has two relay actuators which are inserted into a common receptacle. Each relay actuator has a first fixed contact and a movable contact. Arranged on the receptacle are two second fixed contacts, in each case a second fixed contact bein... | 10/20/2005 |
| 20050200439 | 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 contact p... | 09/15/2005 |
| 20050195057 | Relay and cross-connect The present invention relates to a fuse-relay including a first pole (1, 11, 21, 31, 81) and a second pole (2, 12, 22, 32, 82). According to the invention the fuse-relay includes a resilient device (5, 18, 27, 37, 87) that is held in an elastically ... | 09/08/2005 |
| 20050190025 | Contact-point device Each movable contact 15 is given a first force by a drive mechanism along a direction for bringing the movable contact into contact with a fixed contact 5 and given a second force through a leg 14b by deformation of a supporting member 14<... | 09/01/2005 |
| 20050190027 | Relay and process for producing a relay A relay and a process for producing a relay are described, three contact pins being provided for the relay. The three contact pins are preferably manufactured from a stamping and are fixed together as a contact stamping with respect to a yoke through insertion into a ba... | 09/01/2005 |
| 20050190026 | Heavy duty relay with resilient normally-open contact A heavy duty relay can safely switch a current of 40 A to 1 kA. The heavy duty relay is provided with a changeover spring which can be resiliently deflected by means of a switching force and with a normally-open contact, against which a contact point of the changeover s... | 09/01/2005 |
| 20050151606 | Electromagnetic relay An electromagnetic relay includes an electromagnet block having coils wound about the bodies of spools through which iron cores are provided. The electromagnet block is accommodated in a concave part that opens upward of a box-shaped case such that the shaft centers of ... | 07/14/2005 |
| 20050068130 | Bi-stable trip-free relay configuration A relay reset assembly for use with a relay including first and second support members and a bi-stable armature forming an armature bearing surface and carried by the first support member for pivotal movement between first and second stable positions when force is appli... | 03/31/2005 |
| 20050057332 | Complex electromagnetic relay A complex electromagnetic relay including a plurality of relay structures configured respectively as relays independent of each other, each relay structure including an electromagnet assembly and a contact section acting to open or close in accordance with an operation ... | 03/17/2005 |
| 20050040920 | Electromagnetic relay An electromagnetic relay including a base having a first receptacle, a second receptacle and a partition wall defining the first and second receptacles on mutually opposite sides of the partition wall. The partition wall includes a major part and an auxiliary part, the ... | 02/24/2005 |
| 20050030135 | 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 wit... | 02/10/2005 |
| 20050007221 | Electromagnetic relay An electromagnetic relay, which is excellent in assemblability and includes an indicator which can be operated smoothly, is provided. A coil block and a contact switching mechanism are provided on a base plate, a case is covered over the base plate, the coil block is ex... | 01/13/2005 |
| 20050007220 | Electromagnetic relay for low-voltage circuit breaker An electromagnetic relay with adjustable tripping threshold for a low-voltage circuit breaker, comprising a magnetic circuit that has a fixed part, which comprises a fixed element made of ferromagnetic material, a core, and at least one winding coil, and a moving part, ... | 01/13/2005 |
