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| Number | Title | Issue Date |
| 7301742 | Method and apparatus for accessing and activating accessory functions of electronic circuit breakers An electronic trip unit for a circuit breaker includes a programmed microprocessor and a module plug in removable signal communication with the microprocessor. The module plug includes a program identifier. The microprocessor recognizes the program identifier and ac... | 11/27/2007 |
| 7064284 | Circuit breaker with bumper An improved circuit breaker includes a case, a movable arm, and a bumper retained within a receptacle formed on the case. The bumper is retained in the receptacle by a number of spaced ribs that engage certain portions of the bumper yet permit deformations of other ... | 06/20/2006 |
| 6992872 | Circuit breaker incorporating fault lockout protection A method of protecting multiple feeder circuits fed from a shared electrical distribution system is provided. The method includes providing a bypass line, providing bypass switches in the bypass line, providing a fault lockout protection controller coupled to the by... | 01/31/2006 |
| 6948721 | Variable leveling valve apparatus for a vehicle The invention is disclosed to variably control the amount of compressed air flowing per unit hour depending on the change in the level position of the wheel axles in a moving vehicle when the compressed air flows into air springs from the leveling valve or when the ... | 09/27/2005 |
| 6905126 | Air-bag suspension system An air-bag suspension system for a motorcycle having a motorcycle main frame, fender struts extending outwardly from the main frame, and a swing arm pivotally mounted to the main frame about a pivot axis. The air-bag suspension system includes shock absorber assembl... | 06/14/2005 |
| 6590172 | Circuit breaker mechanism for a rotary contact system A circuit breaker is provided wherein the circuit breaker comprises a contact arm movable between a closed position, an open position and a blown open position wherein the contact arm is disposed in the circuit breaker. A bumper disposed to contact the co... | 07/08/2003 |
| 6420669 | Toggle mechanism for toggle switches A modular toggle mechanism assembly has a housing assembly, a toggle handle pivotally mounted in the housing assembly and movable between a first position and a second position, biasing means for selectively biasing the toggle handle in the first position... | 07/16/2002 |
| 6246021 | Switching device A switching device has an openable contact arrangement including at least one movable contact member disposed on a movable contact arm and at least one stationary contact member. At least one movable braking body is provided for limiting the movement of t... | 06/12/2001 |
| 5931289 | Circuit breaker with quick closing mechanism A circuit breaker includes a releasable retaining mechanism for releasably retaining a movable contact arm of the circuit breaker to prevent "sneak" during movement of the contact arm to the closed position, as well as, to prevent "bounce" during movement... | 08/03/1999 |
| 5758764 | Zero bounce switch To prevent the contacts of an electrical switch bouncing when the switch is operated, with the attendant arcing and contact erosion, spring mass mechanisms are added adjacent the spring arms and contacts to engage such spring arms and contacts and transfe... | 06/02/1998 |
| 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 |
| 5260533 | Molded case current limiting circuit breaker A molded case circuit breaker having current limiting capabilities is dimensionally optimized for relatively smaller frame size circuit breakers. The handle yoke is supported with rollers thereby allowing the crossbar to be disposed in the space normally ... | 11/09/1993 |
| 5199557 | Method of producing an electric or electronic component, a method of producing a key and a key In a process of producing an electric or electronic component, particularly a key, a continuous track of a metal foil is machined into two metallic terminal components constituting links between two carrier strips. A base housing component is cast from a ... | 04/06/1993 |
| 5192841 | Circuit breaker with shock absorbing mechanism A circuit breaker having a chassis, an electrical contact structure, and a shock absorber mechanism. The contact structure includes a movable first electrical contact and a second electrical contact. The first contact has a first movement range. The shock... | 03/09/1993 |
| 5149928 | Arc spinner interrupter having contact bounce suppressor An arc spinner interrupter apparatus includes a first electrical contact assembly having a fixed contact and an arcing element. A second electrical contact assembly includes an arm selectively movable along a path into and out of engagement with the fixed... | 09/22/1992 |
| 5132496 | Membrane switch A membrane switch comprises an upper flexible layers, separation layer and a lower conductive layer mounted on a support. The membrane switch is designed to absorb the noise created when a key is depressed and an operating block collides with the layers d... | 07/21/1992 |
| 5012053 | Contact device for a switch A contact structure of a switching device having a pivoted movable contact arm for reducing contact chatter, i.e., bounce, at the instant of closing or separation is given. Such chatter is mainly caused by clearances existing around pivots of the movable ... | 04/30/1991 |
| 4933519 | Contact structure for grounding switch A grounding switch device for a metal-clad switchgear is adapted to be inserted into a standard circuit breaker cell allows the bus and line conductors within the switchgear assembly to be grounded for maintenance. A plurality of fixed and selectable test... | 06/12/1990 |
| 4912289 | Quieted fast acting switch assembly with visco-elastic polymer laminated between metal layers A relatively quiet switch assembly having a plurality of spaced contact sets with snap-acting transfer actuation and interconnected by a common bus plate. The bus plate is formed of a swandwich construction having a thin (0.001 Inch) core layer of visco-e... | 03/27/1990 |
| 4855549 | Circuit breaker A circuit breaker has a stationary contact arm (2) having a stationary contact (3), a first contact arm (107) having a contact (6) for contacting the stationary contact (3) and an extended terminal portion (107) for connecting a flexible wire (8) and a se... | 08/08/1989 |
| 4814564 | Acceleration switch A bounce-free acceleration switch includes a resiliently mounted movable contact (14) which cooperates with a counter contact (15). The kinetic energy of the movable contact (14) is transmitted through an impact body (16) to a resiliently mounted massive ... | 03/21/1989 |
| 4786771 | Circuit interrupter with two stage stopper preventing bounce back A circuit interrupter comprises a toggle link having an upper toggle link and a lower toggle link pivotally connected by a knee pin to each other, a movable contact arm having a movable contact element secured thereon and connected to the lower toggle lin... | 11/22/1988 |
| 4713503 | Three phase vacuum switch operating mechanism with anti-bounce device for interrupter contacts The velocity of a snap action, spring loaded vacumm switch closing mechanism is substantially reduced by impacting a lever of the mechanism against a first swingable energy absorbing arm which, in turn, pivots to contact a pair of second energy absorbing ... | 12/15/1987 |
| 4703139 | Method in a snap dome switch keyboard assembly for reducing contact bounce time A snap dome switch keyboard assembly including a printed circuit board having dual contact switch sites with piggy-back snap domes, button actuators for each of the piggy-back snap domes, and an elastomeric member arranged between the domes and the button... | 10/27/1987 |
| 4698470 | Multiple-impact shock-absorbing assembly for circuit interrupter and other apparatus The kinetic energy generated by the rapidly moving contact and coupled operating mechanism of a tripped circuit breaker or similar apparatus is dissipated by a compressible shock-absorbing assembly comprising a loose stack of freely-movable magnetized met... | 10/06/1987 |
| 4650946 | Circuit breaker with stop plate for contact arm A circuit breaker with a shock-absorbing mechanism characterized by a movable contact arm operable between open and closed positions of separable contacts, a stop member for stopping movement of the contact arm which member is integral with a housing for ... | 03/17/1987 |
| 4626811 | Circuit interrupter with integral resilient stop means for contact arm The gap distance separating the contacts of a low-voltage circuit breaker in the tripped position is increased by utilizing resilient stop means which is located at the bottom wall of the breaker housing rather than at the top wall (or on the handle of th... | 12/02/1986 |
| 4612429 | Multiple-impact shock absorbing means for circuit interrupter and other apparatus The kinetic energy generated by the rapidly moving contact and coupled operating mechanism of a tripped circuit breaker or similar apparatus is dissipated by a compressible shock-absorbing assembly comprising a loose stack of metal plates and interposed s... | 09/16/1986 |
| 4609795 | Vibration protected switch An electrical switch comprising a moveable contact member resiliently biased to have an electrical contact portion thereof urged into spaced relationship with an electrical contact portion of a fixed member to open the switch and to have another protrudin... | 09/02/1986 |
| 4563557 | Molded case circuit breaker with a movable contact arm shock absorbing member A molded case circuit breaker includes an energy or shock absorbing member for assisting in stopping the movable electrical contacts and for preventing severe damage to a movable contact arm or to the molded case of the circuit breaker. The energy absorbi... | 01/07/1986 |
| 4535208 | Actuating device for a high-voltage switch At least one actuating or cut-off spring is provided which is compressed in the cut-on or closed position of the switch and is coupled to an actuating linkage or rod leading to movable contacts of the switch. An arrangement is provided to variably modify ... | 08/13/1985 |
| 4503296 | Self-cancelling mechanism for cancelling a turn-signal switch of a vehicle A self-cancelling mechanism is mounted on a steering column of a vehicle, is used for a turn-signal device signalling a change of a running direction of the vehicle and switches off turn-signal lamps by a returning rotation of a steering wheel. A ratchet ... | 03/05/1985 |
| 4491709 | Motor and blade control for high amperage molded case circuit breakers A high amperage molded case circuit breaker utilizing a ratchet adapted to be operated manually or electrically and carrying a spring biased clutch connecting the ratchet to a crank for rotating the crank to tense a helical closing spring. The ratchet is ... | 01/01/1985 |
| 4468533 | Air circuit breaker The present invention describes an air circuit breaker having a bounce preventive device which is provided on the direction changing lever interposed between the link mechanism to drive the contact opening and closing mechanism for closure of the contact ... | 08/28/1984 |
| 4439648 | Joystick-type controller A joystick controller assembly for making switch closures in response to X-Y coordinate movements of a joystick in which means are provided for limiting the force which can be applied to a switch.... | 03/27/1984 |
| 4429195 | Timing mechanism An improvement is presented for a timing mechanism wherein the closing of a particular circuit results in a high electrical current surge. The rapidity of the circuit closure (made necessary by the current surge) results in contact bounce. A fast drop of ... | 01/31/1984 |
| 4423296 | Shock and vibration resistant electrical switch First and second counterbalanced contact elements rotate about a common axis so that shock and vibration induced loads produce negligible moments on the contact elements with respect to their axis of rotation. Springs are included and arranged for snap op... | 12/27/1983 |
| 4381435 | Vacuum circuit breaker with means for selectively latching a wipe cage A vacuum circuit breaker having a movable contact coupled through a wipe cage to an operating member which imparts movement during opening and closing strokes to the movable contact is provided with a latch for latching the wipe cage into its fully extend... | 04/26/1983 |
| 4311891 | Vehicle alarm shaker device with spring damper A shaker device for automobile alarm systems in which there is a vibratory member for making contact when the vehicle is disturbed and in which the vibratory member is damped by means of a relatively stiff cantilever supported member made out of spring wi... | 01/19/1982 |
| 4297555 | Movable contact arm assembly A movable contact assembly for use in a circuit breaker includes a movable contact arm having wall portions and an elongated contact member located adjacent to and between the wall portions of the movable contact arm. A supporting member attached to the b... | 10/27/1981 |
