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| 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 |
| 7301434 | Thermally responsive electrical switch A motor protector (10) is shown having an elongated generally cup-shaped metallic housing (12) formed by a top wall (12a) and a side wall (12b) extending down from the perimeter of the top walls, the free end of which is wel... | 11/27/2007 |
| 7109840 | Protector for electrical apparatus A protector (10) particularly useful for wye-connected three phase electrical motors has a header (12) mounting first and second terminal pins (14) to which L-shaped pin heaters (16) are mounted along with stationary electrical contacts (... | 09/19/2006 |
| 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 |
| 7088563 | Internal motor protector for hermetic compressor A protective device (1) which is attached on an internal side of a compressor, includes a housing (10) of an insulating material, a motor protector (20) placed on the housing (10) and having a thermally responsive switch inside, a fuse de... | 08/08/2006 |
| 7024940 | Force measurement of bimetallic thermal disc An apparatus and method for determining the actuation energy generated by a bimetallic actuator during transit between first and second states of stability. The apparatus and method further determining the threshold or set-point temperature of the bimetallic actuato... | 04/11/2006 |
| 6252492 | Condition-responsive electric switch mechanism A condition-responsive electric switch mechanism for use in controlling a compressor of a refrigeration appliance. The switch mechanism includes first, second and third terminals, an actuator movable as a function of a detected condition and a bistable sp... | 06/26/2001 |
| 6078246 | Snap acting thermal switches and method of assembling and adjusting thermal switches A method and apparatus for setting striker pin length and armature spring force in a thermal switch. An armature support structure is deformed in order to adjust armature spring force with the result of a spring force which remains constant over time and ... | 06/20/2000 |
| 6005471 | Thermal protector for electric motors A thermal protector includes a header plate and a metal housing having an open end hermetically welded to an peripheral edge of the header plate. The housing is formed into a generally slender shape so as to be suited for mounting on end turns of a stator... | 12/21/1999 |
| 5986535 | Low cost thermostat apparatus and method for calibrating same A low cost thermostatic switch (10) has first and second scoop shaped terminal members (12, 14) having flanges (12e, 14e) received on ledges (20f) formed on opposed sidewalls (20e) of a housing (20). The terminal members are spaced apart with the distal e... | 11/16/1999 |
| 5973586 | Temperature sensitive tip-switch In one embodiment of the present invention, a temperature sensitive tip switch comprises a first conductive arm, a second conductive arm disposed in a parallel, spaced apart relation beneath the first conductive arm, a third conductive arm disposed in a p... | 10/26/1999 |
| 5786742 | Push button switch with override interruption structure A push button switch with override interruption structure, including a push button, a switch box, a front cover, a base, a support rod, an electric contact and an override interruption structure. The support rod is disposed under the bottom of the push bu... | 07/28/1998 |
| 5585774 | Condition-responsive electric switch mechanism A condition-responsive electric switch mechanism having a snap-acting bistable spring switch element carrying a movable contact, and an actuator movable in response to a detected condition to operate the bistable spring switch element. The spring switch e... | 12/17/1996 |
| 5574421 | Snap disc thermostat and self calibrating assembly method A thermostat includes a case assembly with two terminals and movable contacts, one of which is on a resilient blade to open and close a circuit through the terminals. A bimetal disc actuates the blade by heating to open the contacts. A base defines an int... | 11/12/1996 |
| 5548266 | Thermostat construction A thermostatic switch construction including a housing having a switch arm mounted for movement inside. A bi-metallic snap disk is mounted in the housing and movable in response to temperature change with snap action between two positions of stability. A ... | 08/20/1996 |
| 5212465 | Three-phase thermal protector A three-phase thermal protector includes a hermetic receptacle composed of an elliptic dome-shaped cover having an opening at one end and a header plate having two terminal pins extending through respective apertures formed in it, and a switch assembly mo... | 05/18/1993 |
| 5101189 | Adjustable electric thermostat The thermostat comprises a main housing (10) having a metal sheet cover (12) with a bored and threaded boss (18) and an adjustment shaft (20) threadedly engaged in said boss and entering the housing to interact with internal operative members of the therm... | 03/31/1992 |
| 4843363 | Three-phase thermal protector This invention relates to a three-phase thermal protector having two pairs of fixed and movable contacts for opening and closing the neutral of wye-connected phase windings of a three-phase induction motor. The protector further includes a header plate ha... | 06/27/1989 |
| 4825186 | Process for the adjustment of a thermal switch A transfer element (8) is provided in a thermal switch (1) with a housing (2), power supply lines (4) and contacts (5) and (7), with a contact spring (6) and a thermostatic bimetal plate (3). The transfer element is moved up by the snap action of the ther... | 04/25/1989 |
| 4720696 | Bimetallic thermostat with dual control A bimetallic thermostat with dual temperature control has a first male/female screw unit, one of the elements of which is secured to the thermostat's supporting structure and the other to one of the elements of a second male/female screw unit the other el... | 01/19/1988 |
| 4672353 | Snap-action type thermally responsive switch A thermally responsive snap-acting switch consists of an elastic plate cantilever mounted at one end on a header, a thermally responsive element which includes a central dish-shaped portion for inducing snap action and one end of which is connected with t... | 06/09/1987 |
| 4667175 | Overload protective circuit breaker A preferably push button-actuated overload protective circuit breaker with bimetal cut-out is devised for being plugged into a flat female plug socket. The circuit breaker comprises a bimetal contact element and a fixed contact element besides each other ... | 05/19/1987 |
| 4636766 | Miniaturized circuit breaker A circuit breaker comprises a two piece metal enclosure, a cover and a base. Disposed within the enclosure is a PMB bimetal which is fastened to a step in the cover. The opening time of the circuit breaker can be adjusted by means of the step.... | 01/13/1987 |
| 4620175 | Simple thermostat for dip mounting A bistable bimetallic element is captured loosely between a housing cover on the one side, and an interior abutment and an end of a movable contact arm on the other side. A dimple in the housing cover provides a fulcrum for the bistable element, so as to ... | 10/28/1986 |
| 4587508 | Bimetal switch assembly A bimetal circuit breaker switch assembly has two parallel, side-by-side arranged snap switches associated with two circuits independent from one another, a plate-like bimetal element which is, at its arcuately moving free end, operatively connected with ... | 05/06/1986 |
| 4551702 | Thermostatic switch and method of manufacture A condition responsive switching device has a cup-shaped case, a body secured in abutting assembled relationship to the case, the body and case defining a chamber, a switch mounted on the body in the chamber providing a fixed electrical contact and a cant... | 11/05/1985 |
| 4510481 | Snap action type thermally responsive switching structure A snap action type thermally responsive switch comprising a fixed contact secured to a stationary frame, a rectangular thermally responsive plate having a central dish-shaped portion and being secured at one lengthwise end to the stationary frame and carr... | 04/09/1985 |
| 4476453 | Temperature responsive switch A temperature responsive switch has a bimetal-and-spring arrangement carrying a movable contact and having a first stable state urging the movable contact towards a stationary contact into an ON position and a second stable state urging the contacts away ... | 10/09/1984 |
| 4426632 | Snap-acting thermostatic switch using inflexible, spring biased contact arm A heat responsive electrical switch comprises a small, open ended, generally cylindrical housing in which are mounted two spaced plate members extending in parallel directions from a bottom wall into a switch cavity. The first plate member mounts at its d... | 01/17/1984 |
| 4401964 | Combined temperature responsive valve construction and electrical switch construction and method of making the same A combined temperature responsive valve construction and an electrical switch construction wherein the valve construction has a thermally responsive device of the piston and cylinder type operating a movable valve member that is engaged by the piston of t... | 08/30/1983 |
| 4365228 | Thermostat construction having a one piece plunger with a wing-like section and method of making the same A thermostat construction having a one-piece plunger provided with a wing-like section that is engageable with a switchblade on opposite sides of an opening thereof and through which a post means of the wing-like section extends so as to bear against a te... | 12/21/1982 |
| 4317100 | Readily mountable thermostat A thermostat device has control means movable between control positions on a base when a thermostat metal element moves with snap action in response to temperature changes. Angle-shaped mounting brackets of a relatively high strength metal material have r... | 02/23/1982 |
| 4258325 | Thermostat and method of testing thereof A thermostat is disclosed and claimed in which a totally enclosed switch is operated by a bimetal snap disc. The housing is provided with a small opening through which a testing probe may be inserted to test the gaging of the assembled device. Such openin... | 03/24/1981 |
| 4235323 | Slip clutch assembly There is disclosed a slip clutch useful for the fixed adjustability of an indexed knob on a control shaft of a device such as thermostatically controlled gas valve for a water heater. The clutch comprises the assembly of a shaft with a reduced end portion... | 11/25/1980 |
| 4224593 | Double-motion thermostat A two-bimetal thermostat provides double motion for enhanced contact actuation and minimum differential. Two bimetal plates are pivotally supported at one end to extend generally parallel. The other, deflectable ends of these bimetal plates, one of which ... | 09/23/1980 |
| 4201967 | Thermal switch and method of assembly and tool used therein A thermal switch having contacts with one contact being movably mounted on a carrier and with movement of the carrier controlled by a bimetal actuator disc. The actuating movement is transmitted through a striker pin of molded ceramic material which is fa... | 05/06/1980 |
| 4032734 | Snap-ating mechanisms A snap-acting switch using a planar blade of resilient sheet metal which is stressed to an unstable condition such that with suitable stop members it will occupy two positions of stability. When motivated the blade will snap from one of the positions of s... | 06/28/1977 |
| 3996547 | Motor protector apparatus A low cost multiphase motor protector which employs only one movable contact attached to the center of a bimetallic snap-acting disc. After the disc is calibrated and upon the application or dissipation of heat, the one movable contact either connects or ... | 12/07/1976 |
| 3949344 | Thermostatic control apparatus Thermostatic control apparatus comprising a switch, a switch body housing the switch, and an actuator arm extending from the switch body with the arm being movable between the first and second positions for opening and closing the switch. A thermostatic b... | 04/06/1976 |
| 3943478 | Adjustable thermostat An adjustable bimetal snap disc thermostat is disclosed in which a leaf spring acts at its center to apply a force to a bimetal snap disc to alter the operating temperature thereof. The force of the spring applied to the disc is adjusted by an operating m... | 03/09/1976 |
