Class 335/171 - Including spring-biasing or energy-storage means

Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter wherein the latching structure includes spring
No. of patents: 34
Last issue date: 08/12/2008

Number	Title	Issue Date
7411145	Motor operator de-coupling system sensing camshaft position A decoupling assembly structured to decouple the charging motor and the charging assembly cam shaft is provided. The decoupling assembly includes a lifter pin assembly and an elongated second end to a link member in the over-running clutch assembly. The link member ...	08/12/2008
7268652	Cradle assembly with opening assist mechanism and electrical switching apparatus employing the same An opening assist mechanism is for the cradle assembly of a circuit breaker including a housing enclosing separable contacts, and an operating mechanism for opening and closing the separable contacts. The operating mechanism includes a trip bar and a cradle assembly...	09/11/2007
7239490	Medium voltage vacuum circuit interrupter An encapsulated medium voltage vacuum circuit interrupter includes a line terminal, a load terminal, a vacuum interrupter, an operating mechanism and an elongated, insulated, generally cylindrical encapsulating housing. The vacuum interrupter includes a vacuum envel...	07/03/2007
7170375	Permanent-magnet ground fault circuit interrupter plug and its permanent-magnet mechanism therein A permanent-magnet ground fault circuit interrupter plug with self-diagnosing function having an enclosure and a permanent-magnet mechanism encased in the enclosure. In one embodiment, the permanent-magnet mechanism includes a frame assembly having a crossbeam, a fr...	01/30/2007
7132912	Moving contact unit for a contact arrangement in a circuit breaker The moving contact unit (10) is intended for a contact arrangement in a circuit breaker and contains a contact mount (13) and a contact piece (11, 111, 112), which is held by the contact mount (13). The contact mount (13) is arrang...	11/07/2006
6975191	Resettable switching device A resettable switching device, e.g. a relay, comprises a fixed contact (18) and a movable contact (28). A solenoid (12) is fixed relative to the fixed contact and a ferromagnetic plunger (20) carries the movable contact. A spring (24	12/13/2005
6917006	Spring-driven mechanism for rectilinear displacement circuit breaker An operating mechanism for a rectilinear motion circuit-breaker, for performing an open-close-reopen cycle, and operating on an operating rod of the circuit-breaker and including closing and opening springs. The opening spring operates on the operating rod. The clos...	07/12/2005
6677842	Load disconnecting switch especially for use in motor vehicles A load-disconnecting switch has a permanent-magnetic holding circuit. A coil (5), upon excitation thereof, generates a magnetic flux that is opposite to the magnetic flux of the permanent magnet (9). The armature (6) is biassed to an open position by an a...	01/13/2004
6667675	Adjustable magnetic trip assembly for circuit breaker An adjustable magnetic trip unit for a circuit breaker includes a torsion spring which applies a bias force to the plunger of a trip solenoid. The torsion spring is mounted on a driven bevel gear and wound by an adjustment knob coupled to a driving bevel ...	12/23/2003
6628185	Blade assembly for a circuit breaker A circuit breaker for interrupting the flow of current upon the detection of excess current or temperature is provided that has a current conducting blade mounted on a blade cross bar, which has a blade biasing spring for urging the blade to a first pivot...	09/30/2003
6348847	Control device for breaker A making operation preventing device 130 has a releasing trigger 19 for retaining, via a releasing latch 18, a breaking lever 36 to which a torque in a counterclockwise direction is applied by an opening torsion bar 34; a releasing electromagnet 20 for op...	02/19/2002
6218918	Electro-mechanical latch relay A mechanical latch relay started by a current pulse is disclosed which comprises an electromagnetic generating unit, a connecting mechanism and a mechanical locking mechanism, and which can maintain the existing operation state when the current pulse star...	04/17/2001
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
5933065	Control and signalling device for protective switching apparatus The present invention relates to a control and signalling device for a protective switching apparatus of the relay switch type which is provided with power switches (1) and a protection assembly (4) and is capable of detecting faults (overloads or overcur...	08/03/1999
5909161	Intermediate latch for a molded case circuit breaker A molded case circuit breaker includes a generally "Z" shaped intermediate latch structure which has upper and lower substantially planar sections that are each bent at an angle with respect to a center pivot section. The upper portion of the intermediate...	06/01/1999
5886603	Electrically controlled tripping mechanism A detent mechanism comprising a support member having a fixed seating member comprising opposite sides; a first spring for exerting a first spring force, disposed between one side of the fixed seating member and a first sliding member, further comprising ...	03/23/1999
5508487	High voltage circuit interrupting device operating mechanism including trip latch assembly A circuit switching mechanism for use in a high voltage circuit breaker is disclosed. The disclosed mechanism comprises a charging system (12); trip latch mechanism (14); an opening spring (16); a closing spring (18) positioned coaxially with the opening ...	04/16/1996
5369384	Power circuit breaker with a breaker mechanism and a breaker mechanism for a power circuit breaker The breaker mechanism for power circuit breakers is the energy storage link between the handle and the contact systems. Known breaker mechanisms are generally too expensive to manufacture. When contact welding occurs, there is also the risk that, in spite...	11/29/1994
5224590	Circuit interrupter having improved operating mechanism A circuit breaker having a contact movable between open and closed positions, includes a closing spring assembly having a closing spring and first and second brackets. The closing spring assembly is chargeable when in a reset position in which the first b...	07/06/1993
5004875	Stored energy contact operating mechanism A mechanism for accumulating and storing mechanical energy, wherein the energy is used to close the primary contacts of a circuit breaker. The energy can be input to the mechanism manually or by means of a motor. The mechanism includes a series of linkage...	04/02/1991
5003139	Circuit breaker and auxiliary device therefor An accessory module (104) for use with a circuit breaker (10) is configured for mounting to the breaker, and has a rotor (142) which follows the movement of the circuit breaker blade (24) in the breaker by means of a coupling member (118) passing through ...	03/26/1991
4742200	Actuating device for a low-voltage circuit breaker with a ratchet wheel For cocking an energy accumulator, an actuating device comprises a ratchet wheel with teeth as well as a reciprocating transport ratchet. For maintaining the cocked position of the energy accumulator, a cam wheel and blocking lever which can be braced aga...	05/03/1988
4740770	Operating mechanism for a low voltage electrical circuit breaker A mechanism for a circuit breaker includes a support lever insulated from a contact arm and a trip lever supported by a plate fitted with limited swivelling on a pivot. A mechanical link arranged between a toggle-joint and the contact arm includes a latch...	04/26/1988
4713508	Circuit breaker operating mechanism equipped with a stored energy system having removable and replaceable closing spring mechanisms A stored energy system of a circuit breaker operating mechanism comprises a telescopic link having a guide and a cap with relative movement between which at least one closing spring is inserted. At the end of charging travel, a removable blocking device c...	12/15/1987
4677406	Protective switching apparatus A protective switching apparatus is provided comprising in an insulating case an interruptible current path in which cooperating contacts are disposed, one of which is fixed and the other is mobile in response to the actuation of a tripping member. The mo...	06/30/1987
4623860	Latching solenoid mechanism An internal latching mechanism for a solenoid comprises a cylindrical ball race on the main solenoid plunger with a plurality of balls disposed in aligned apertures in the ball race. First and second axially displaced fixed retainers, interconnected by a ...	11/18/1986
4553115	Molded case circuit breaker with single solenoid operator for rectilinear handle movement A molded case circuit breaker includes a single coil solenoid operator for placing the handle of the circuit breaker in its ON position or in its OFF position. The solenoid operator includes a single coil solenoid formed by an electromagnet secured to a m...	11/12/1985
4524339	Contact control arrangement for high amperage molded case circuit breaker A pair of toggle links in a high amperage molded case circuit breaker are driven over center in response to the discharge of a closing spring for pivoting a plurality of blades and closing the breaker contacts. A latch link pivotally connected to the uppe...	06/18/1985
4494096	Latching solenoid A latching solenoid has a first inductive coil for selectively positioning a member at a preselected location where it is locked against longitudinal movement by a mechanical latching means. The latching means includes a plunger moveable within a bore and...	01/15/1985
4472698	Device for releasing the movable contacts of contactors adapted for limiting short circuit currents A threshold coupling device for releasing the mobile contacts of circuit breakers when short circuits appear. A rectangular section blade (13) with longitudinal faces (13', 13") associated with a contact holder (10) is provided with balls (29, 30) which c...	09/18/1984
4459573	High power pulse operated relay An improved solenoid actuated switch assembly is retained within a housing made from insulating material having three generally parallel recessed passages. The solenoid actuator is retained within the center passage or recess and the parallel side recesse...	07/10/1984
4386330	High power pulse operated relay An improved solenoid actuated switch assembly is retained within a housing made from insulating material having three generally parallel recessed passages. The solenoid actuator is retained within the center passage or recess and the parallel side recesse...	05/31/1983
4336516	Circuit breaker with stored energy toggle-lock structure A circuit breaker characterized by a toggle lock means for holding toggle springs in a charged condition ready for closing a circuit through the circuit breaker contacts when necessary....	06/22/1982
4259651	Current limiting circuit interrupter with improved operating mechanism A current limiting circuit interrupter includes two parallel pivoting contact arms carrying contacts at the ends thereof. The upper contact arm is pivoted upon a carriage which is in turn pivotally mounted upon a mechanism frame. A latch rod is movably se...	03/31/1981

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Class 335/171 - Including spring-biasing or energy-storage means