Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7961073 | Controllable electronic switch A controllable electronic switch for, e.g., controlling power distribution comprises a deformable member such as a bimetal arm that can be deformed to break an electrical path. The deformable member may be anchored at one end and in controllable contact with an elec... | 06/14/2011 |
| 7800477 | Thermal protector The present invention relates to a thermal protector which is comprised of a bimetal blade, a moving electrical contact, a fixed electrical contact, and a electrical resistor, wherein the bimetal blade has a fixed end and a moving end, wherein the moving electrical ... | 09/21/2010 |
| 7330097 | Direct current cutoff switch In a direct current cutoff switch1, a PTC 5, which is a non-linear resistor, is parallel connected to a contact circuit composed of a fixed contact 4-2 and a movable contact 8-2 via electrodes 5-1. When the swi... | 02/12/2008 |
| 7324876 | System for remotely controlling energy distribution at local sites A power management system and associated method includes provision of local wireless energy control units at remote sites for controlling power delivery to customer loads, and a central station with a wireless transmitter for broadcasting commands to the wireless en... | 01/29/2008 |
| 7304561 | Motor overload protector An enclosed motor protector has a housing formed by a base (10) and a cover (12) received on the base and enclosing a recess (10a) formed in the base. A first terminal (14) extends through an opening in the housing and mounts a sta... | 12/04/2007 |
| 7298239 | Thermal protector A thermal protector (1) including two fixed contacts (13A, 13B) provided at the end part of conduction terminal pins (5A, 5B) projecting into a metallic enclosed container (100), a support (6) arranged in a case, an o... | 11/20/2007 |
| 7292131 | Heat-sensitive switch and a heat-sensitive switch assembling method A heat-sensitive switch includes a first terminal, a second terminal away from the first terminal, a reverse spring reversing at a set temperature and having an opening part and positioned between the first and second terminals, and a junction spring positioned betw... | 11/06/2007 |
| 7278711 | Nozzle arrangement incorporating a lever based ink displacement mechanism A nozzle arrangement is provided for an ink printer. The arrangement includes a support defining an ink inlet channel. The arrangement includes a wafer substrate, an electrical drive circuitry layer positioned on the wafer substrate, and a passivation layer position... | 10/09/2007 |
| 7265652 | Controllable electronic switch A controllable electronic switch for, e.g., controlling power distribution comprises a deformable member such as a bimetal arm that can be deformed to break an electrical path. The deformable member may be anchored at one end and in controllable contact with an elec... | 09/04/2007 |
| 7210846 | Thermostat housing assembly A thermostat housing assembly (10, 100) includes a housing (12, 102) having a flange (16, 106) for mounting the housing (12, 102) on a support structure and a tubular spout (18, 108) extending from the flange (16, 106) and d... | 05/01/2007 |
| 7209337 | Electrical thermal overstress protection device An electrical current overstress protection device for use with a power source and an overload protection switch comprising a main conductor member receiving current from the power source; a parallel conductor member connected to the main conductor member; and an ar... | 04/24/2007 |
| 7201058 | Pressure transmitter and a method of making a pressure transmitter from a sensor unit and a body part A pressure transmitter includes a body part and a sensor unit which are joined hermetically. Adjacent to the hermetic joint, there is a gap between adjacent surfaces of the body and sensor unit, which gap facilitates an easier assembling procedure and which facilita... | 04/10/2007 |
| 7168917 | Heat-generating blower housing A centrifugal blower for a furnace, heat pump, or other type of air handling unit includes a heat-generating blower housing that heats the airflow as the air passes through the blower housing. In some cases, the housing is made of a thermosetting resin impregnated w... | 01/30/2007 |
| 7164102 | Self heating thermal protector A self heating thermal protector located in close proximity to a remotely located incandescent light fixture for controlling the flow of current to the lighting fixture by measuring the rate of heat flow from a dedicated heat source. Current is permitted to flow to ... | 01/16/2007 |
| 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 |
| 7075403 | Motor protector particularly useful with hermetic electromotive compressors A protector (1) has a metal header (30) that mounts a first terminal (31) and a second terminal (32) electrically isolated from one another. A metallic housing (10) is fixed to the header (30) and forms a chamber. A stationa... | 07/11/2006 |
| 7071809 | Thermal fuse containing bimetallic sensing element A non-resetable, bimetallic thermal switch. The bimetallic thermal switch includes a bimetallic element, first and second electrical contacts, and a component for electrically connecting and disconnecting the first and second electrical contacts based on movement of... | 07/04/2006 |
| 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 |
| 6825750 | Controllable electronic switch with interposable non-conductive element to break circuit path A controllable electronic switch for, e.g., controlling power distribution comprises a deformable member such as a bimetal arm that can be deformed to break an electrical path. The deformable member may be anchored at one end and in controllable contact with an elec... | 11/30/2004 |
| 6803850 | Thermal trip assembly and method for producing same A heater element for use in a circuit breaker whose initial shape can be varied to achieve various trip ratings for different circuit breakers. The material composition of the heater element and the bimetal strip indirectly heated by the heater element are kept the ... | 10/12/2004 |
| 6794964 | Bi-stable microswitch including magnetic latch A bi-stable microswitch (1) including a pair of contacts (4, 5) and an armature (10,11) movable between a first position and a second position to selectively break or make the pair of contacts, the armature being latched in the second position b... | 09/21/2004 |
| 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 |
| 6664885 | Thermally activated latch A device is described for latching an actuator to a substrate where the substrate includes a thermally activated material located on the substrate and a heater capable of heating the thermally activated material until it softens. The actuator includes a c... | 12/16/2003 |
| 6639502 | Overload protector with control element A hermetic compressor is disclosed having an electric motor, a compressor unit, and an overload protector within a hermetically sealed housing. The overload protector includes a thermally activated switching device for selectively providing current to the... | 10/28/2003 |
| 6636141 | Controllable electronic switch A controllable electronic switch for, e.g., controlling power distribution comprises a bimetal member anchored at one end and in controllable contact with an electrical conductor at the other end. An incoming power wire is connected to the bimetal member ... | 10/21/2003 |
| 6542062 | Overload protector with control element A hermetic compressor is disclosed having an electric motor, a compressor unit, and an overload protector within a hermetically sealed housing. The overload protector includes a thermally activated switching device for selectively providing current to the... | 04/01/2003 |
| 6300860 | Switch having an insulating support A switch 10 has an insulating support 16 on which a first and a second external terminal 11, 14 are arranged, and a temperature-dependent switching mechanism 19 that, as a function of its temperature, makes between the first and the second external termin... | 10/09/2001 |
| 6133817 | Temperature-dependent switch A temperature-dependent switch 10 has two connection electrodes 12, 13 mounted on an insulating support 11 as well as a switching mechanism 27 that, as a function of its temperature, makes an electrically conductive connection between the two connection e... | 10/17/2000 |
| 6057751 | Overheat and overload sensing device An overheat and overload sensing device includes a thermal sensor (such as a thermal regulator) and a breaker connected in parallel and used to cut off a power supply in case of current overload. The thermal sensor usually disposed near a heat source can ... | 05/02/2000 |
| 5936510 | Sealed case hold open thermostat A thermostat includes a case having a sealed interior and an exterior. A contact extends from the sealed interior to the exterior. The contact is fixed with respect to the casing and has an interior contact position. A first blade extends from the sealed ... | 08/10/1999 |
| 5892429 | Switch having a temperature-dependent switching mechanism A switch for opening and closing an electrical circuit comprises a temperature-dependent switching mechanism and a housing containing a switching mechanism. The housing has an electrically conductive lower housing part and an electrically conductive cover... | 04/06/1999 |
| 5854584 | Protective device against thermal overload for a small high-heat-load electric motor A device for protecting a fractional-horsepower motor from overheating. The motor is intended to accommodate a high heat load. Its power supply accommodates a make-or-break switch. A bimetal component opens the switch once a certain temperature has been a... | 12/29/1998 |
| 5844465 | Temperature compensated time-delay switch A time-delay switch responsive to a sensor 36 having a temperature compensation feature including bimetallic creep-type strip elements (10, 11). Additionally, the switch has an alarm function (A) with a manual reset button (9).... | 12/01/1998 |
| 5831508 | Component for a demagnetization circuit A component for a demagnetization circuit includes a thermistor with positive temperature characteristic having a first electrode and a second electrode, another thermistor with negative temperature characteristic having a third electrode and a fourth ele... | 11/03/1998 |
| 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 |
| 5804798 | Thermal protector with bimetal plate A thermal protector having a fixed plate with a fixed contact point at one end, a movable plate having a movable contact point at a position corresponding to the fixed contact point. A bimetal plate which bends when a temperature exceeds a specified level... | 09/08/1998 |
| 5721525 | Temperature controller with bimetallic switching devices which switches at an excess temperature A temperature controller (10) having bimetallic switching device (15) which switches at an excess temperature and a heating resistor (23) in the same circuit as this which has the effect of a self-locking function. The heating resistor (23) is designed on... | 02/24/1998 |
| 5675307 | PTC device with extended thickness A thin PTC device that includes a layer of PTC material sandwiched between a pair of metal plates is provided with an increased effective thickness by outwardly extending flanges on at least one of the metal plates. This allows a close fit of the PTC devi... | 10/07/1997 |
| 5607610 | Compact protector A compact protector device having a housing 10 with a fixed electrode 18 and terminal member 12 and a movable electrode 26 and terminal member 14 contained therein. The movable electrode 26 includes a thermostatic bimetal member 26a with a movable contact... | 03/04/1997 |
