Class 337/379 - Bimetallic element structure or composition of material

Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter relating to specific details of the physical
No. of patents: 39
Last issue date: 05/13/2008

Number	Title	Issue Date
7372356	Concealed adjustable temperature switch A concealed adjustable temperature switch includes a fixed plate, an adjusting block threadedly engaged with a screw hole of the fixed plate, a bimetal plate, and a metal plate. Mounted on the adjusting block are upper and lower positioning rings and a fixing ring b...	05/13/2008
7112362	Thermally movable plastic devices and toys In accordance with the invention, thin bodies of plastic, such as sheets or strands, with substantially different thermal coefficients of expansion are laminated together to make plastic bodies which move in response to heat. The movable plastic bodies can be secure...	09/26/2006
7102481	Low current electric motor protector A low current motor protector (10, 10′) has an oblong metal housing (12) defining a switch chamber and formed with an open end. The housing has opposing flange portions extending transversely from the open end. Spaced apart lid portions (18...	09/05/2006
6995647	Low current electric motor protector A low current motor protector (10, 10′) has an oblong metal housing (12) defining a switch chamber and formed with an open end. The housing has opposing flange portions extending transversely from the open end. Spaced apart lid portions (18...	02/07/2006
6798219	Electronic device for monitoring the temperature of a medium to be monitored and method for implementing the same Electronic device for monitoring the temperature of a medium ensures that the temperature has not reached pre-established index limit values. The device includes contacts for closing an electric charge flow circuit when the temperature reaches an index limit value, ...	09/28/2004
6771159	Contact spring for miniature thermostat A switch comprising a molded housing having a cavity, and a set of electrical terminals formed within said cavity, with a displaceable elongated contact arm selectively forming a circuit between said set of terminals, wherein said displaceable elongated contact arm ...	08/03/2004
6756876	Circuit interrupter and method A current interrupter (10, 10′) includes bimetallic member (18) as a switching member having a formed portion (18a) providing snap action movement between oppositely dished configurations. An integrally formed extended length portion (	06/29/2004
6734782	Switching device with an actuator element consisting of a shape memory alloy A switching device includes a strip-shaped actuator element including a shape memory alloy, which is connected to a movable contact part of a switching contact. It is intended that an at least largely extended shape has been impressed into the actuator element at an...	05/11/2004
6639503	Methods and apparatus for mounting a bimetal coil in a thermostat An apparatus is described for mounting a bimetal coil in a thermostat having an anticipator operable via an anticipator circuit. The apparatus includes an insulating member configured to insulate the coil from the anticipator circuit. The apparatus also i...	10/28/2003
6633222	Battery breaker There is provided a battery breaker comprising a case, a fixed contact which is mounted to the inner bottom surface of one end of the case and is connected to a terminal extending from the case outwards, an elastic movable piece which is mounted such that...	10/14/2003
6580351	Laser adjusted set-point of bimetallic thermal disc A method for post-fabrication modification of the snap actuation properties of a thermally responsive bimetallic actuator by exposing a pre-formed bimetallic actuator to laser energy, thereby permanently altering the thermal response properties of the bim...	06/17/2003
6552645	Bimetallic actuator for electronic components and other devices A calibrated bimetallic actuator has contoured areas having either raised or recessed generally annular shaped forms about the locations thereon where the actuator is affixed in assembled position on associated electronic components or other devices or wh...	04/22/2003
6483418	Creep acting miniature thermostatic electrical switch and thermostatic member used therewith A creep acting thermostatic switch (30) has an oblong, electrically conductive cup-shaped housing (32) formed with a side wall (32b) extending upwardly from a bottom wall (32a). A generally J-shaped creep acting thermostatic member (38) has a short leg (3...	11/19/2002
5870013	Thermally controlled electrical switching device having a snap-action switch The invention relates to a thermally controlled electrical switching device including a temperature control (1) having a snap-action switch (2) including a fixed contact (4) and a movable contact (3) connected to a metal snap-action switching spring (9), ...	02/09/1999
5844466	Bimetallic thermal triggering apparatus for a protection device Thermal triggering apparatus, for a protection device featuring an electrically conductive bimetallic strip and a plate of thickness (e) which supports the bimetallic strip. The bimetallic strip has a first end free that is capable of deforming and a seco...	12/01/1998
5808539	Temperature responsive snap acting control assembly, device using such assembly and method for making A snap acting thermostatic disc assembly having a thermostatic disc element (20) responsive both to current and to ambient temperature is provided with an electrical contact (22) on a face surface on the disc element at one end thereof and a weld slug (24...	09/15/1998
5594330	Movement actuator/sensor systems A movement actuator includes an elongate filament made of a flexible material, and a strip of shape memory alloy disposed on the surface of one side of the filament. The shape memory alloy is responsive to actuation signals, heat or electrical signals, fo...	01/14/1997
5548267	Thermostat construction with improved bi-metallic disk mounting arrangement A thermostatic switch construction including a housing having a switch arm mounted for movement inside. A bi-metallic disk is mounted in the housing and movable in response to temperature change with snap action between two positions of stability. A switc...	08/20/1996
5481184	Movement actuator/sensor systems A movement actuator includes an elongate filament made of a flexible material, and a strip of shape memory alloy disposed on the surface of one side of the filament. The shape memory alloy is responsive to actuation signals, heat or electrical signals, fo...	01/02/1996
5298876	Bi-metallic switch element A bi-metallic switch element 10 has a contact wire 26 attached thereto by means of a plurality of crimps. A first crimp 28 applied at a first pressure fixes the contact wire to the element and a second crimp 30, formed at a lesser, more controlled pressur...	03/29/1994
5206622	Protector device with improved bimetal contact assembly and method of making The present invention provides an improved thermostatic contact assembly for use in a protector and method of making wherein weld projections are formed on the thin snap-acting bimetal disc for attaching the movable contact member to provide better alignm...	04/27/1993
4914415	Driving element with a thin part, deformable in the direction of its thickness Driving element (1) comprising a thin part (2) provided with a zone, ductile in the direction of its thickness in such a way as to occupy at least two positions, in at least one of which said zone is arc-shaped, at least one tab (3,4) fixed at one end to ...	04/03/1990
4812799	Miniature circuit breaker with improved longevity A circuit breaker device has a chamber in which is disposed a single break contact system using low contact resistance material mounted on movable and stationary supports arranged in a loop configuration in order to direct arcs between the contacts throug...	03/14/1989
4799038	Snap-action heat responsive device This invention provides a snap-action heat responsive device employing a bimetallic strip which is typically used with a thermostat, a temperature-protecting apparatus or the like. Two elongated portions of the bimetallic strip oppose each other so that t...	01/17/1989
4796355	Snap action devices and methods and apparatus for making same An inherently mechanically bistable self-supporting blade element for actuating snap-action switches, circuit breakers and devices, and methods and apparatus for producing such elements. The elements are formed from initially flat, unstressed spring mater...	01/10/1989
4682141	Dynamically optimized thermostat (dot) with tunable bimetal element A tuning element for a temperature responsive switch includes a bimetal assembly in the form of an elongated, relatively flat bimetal strip with bending action and including integral tuning webs for adjusting the thermodynamic properties of the element. M...	07/21/1987
4636615	Electrical resistance heating element having a bimetallic protective switch An electrical radiator, particularly for fan-forced heaters, is provided which includes a resistance heating element disposed on an insulating element connected to the housing of the fan-forced heater. The coil winding of the resistance heating element is...	01/13/1987
4554526	Fluorescent lamp with iron-nickel bimetal filament switch An improved thermally responsive switch is provided. The switch has a thermally movable arm which moves a substantial degree at a selected response temperature but which moves only a small degree at higher temperatures and also at lower temperatures....	11/19/1985
4424506	Snap-acting mechanisms A snap-acting mechanism such as a switch is constructed with a generally planar blade assembled between mutually spaced portions of a pair of members forming a base. The base includes means extending from one of the portions to the other which operate to ...	01/03/1984
4236136	Tripping device for an overload circuit breaker An overload circuit breaker has a housing and a tripping device supported in the housing and having a helically wound, current-carrying bimetal strip composed of two face-to-face arranged metal components situated, respectively, at the inside and at the o...	11/25/1980
4160226	Snap-acting thermally responsive actuators A snap-acting thermally responsive actuator comprises a bimetal sheet having a U-shaped aperture defining a tongue, the sheet having been deformed to a domed configuration in a die pressing operation so that the actuator reverses its curvature with a snap...	07/03/1979
4159155	Bimetal circuit breaker A bimetal circuit breaker comprises a frame and a plate-like bimetal component which includes a base part, two U-shaped legs each having a first leg portion, a second leg portion and a U-shaped connecting portion. Each first leg portion is attached to the...	06/26/1979
4152998	Method for forming snap-acting thermally responsive actuators A method of forming a snap-acting thermally responsive bimetallic actuator comprising forming, from sheet bimetal, a member having an aperture with an arcuate outer perimeter and an inner perimeter defining a tongue free at one end, said free end being cl...	05/08/1979
4142418	Temperature sensitive member A temperature sensitive member, such as used in a thermostat, is formed of an elongated metal strip coated with a layer of polymer material. Holes are formed through the metal strip over its length and the layer of polymer material extends into the holes....	03/06/1979
4105986	Distribution transformer secondary circuit interrupter having an improved bimetal A circuit breaker particularly adapted for use in an oil filled distribution transformer includes an improved bimetal trip actuator which exhibits greater deflection for a given degree of power dissipation. The trip actuator includes a planar bimetal elem...	08/08/1978
4090163	Elongated snap-acting bimetal element An elongated bimetal member has a transverse curvature opposing temperature warp and a longitudinal curvature aiding temperature warp. The transverse curvature maintains the member straight in a longitudinal direction until the sum of the longitudinal tem...	05/16/1978
4041432	Motor protector for high temperature applications and thermostat material for use therein A motor protector for use in motors having a high operating temperature employs a snap-acting composite thermostat element to actuate the protector wherein the multilayer thermostatic material embodied in the element has an electrical resistivity value fr...	08/09/1977
3988708	Controlled droop thermostat Limited droop thermostats in which a bimetal tongue extends from an end of the main ambient temperature-sensing bimetal. The tongue responds to heat emitted by the thermostat switch and acts to compensate for the incidental exposure of the main bimetal to...	10/26/1976
3976966	Electric sequencer and electric heating system An electrical sequencing relay has an elongated bimetal member with a transverse curvature opposing temperature warp and maintaining the member straight in a longitudinal direction until longitudinal temperature warp forces exceeds the retaining forces of...	08/24/1976

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Class 337/379 - Bimetallic element structure or composition of material