"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 6997604 | Temperature sensor A temperature sensor comprising: a housing; a thermo-sensitive element housed in the housing for outputting electric characteristics varying with a temperature, as an electric signal; and a pair of lead wires connected at their one-side ends with the thermo-sensitiv... | 02/14/2006 |
| 6781504 | Thermal switch adapter A thermal switch apparatus having an adapter mount that snaps to a modular thermal switch by hand or with the use of a simple tool. The thermal switch apparatus of the invention is embodied as a thermal switch apparatus including an adapter having a mounting apparat... | 08/24/2004 |
| 6707370 | Thermal switch and heater A thermal switch comprises an elongate tubular sealed housing. A control circuit is mounted in the housing. The control circuit comprises a thermostat, a fuse and a thermal overload switch electrically connected in series. An electrical connector is mounted to the h... | 03/16/2004 |
| 5858454 | Overcurrent protection device An overcurrent protection device and a method for the production thereof is provided wherein a fusible link is bonded across a pair of electrodes. A composite layer envelops the fusible link and is formed from a gelatinous composition. The composite layer... | 01/12/1999 |
| 5790007 | Board fuse, and method of manufacturing the board fuse A board fuse includes an insulating board having a through-hole window in the middle of the insulating board and fusible elements laid over the insulating board. Further, the fusible elements are continuous metal wires substantially equal in cross section... | 08/04/1998 |
| 5659284 | Electric fuse and protective circuit An electric protective circuit includes an electric fuse and an electric resistance loop connected in series with the fuse, the fuse and loop being mounted on a substrate. The fuse includes a solder that is connected as a resistance in a current series ci... | 08/19/1997 |
| 5629569 | Thermal photocontrol switch circuit A self-configuring photoelectric control circuit for controlling operation of a load based on ambient light. The photocontrol circuit comprises a photocell responsive to ambient light, a heating resistor connected to the photocell, a bimetallic element in... | 05/13/1997 |
| 5304740 | Fusible link wire A fusible link wire for use in an electric circuit comprising a fusible conductor for opening the circuit in response to a given current level, an inner electrical insulation layer surrounding the fusible conductor, a braided sheath positioned over the in... | 04/19/1994 |
| 5180900 | Electrical resistance element with heat-sensitive disconnect capability An electrical resistance heating element includes a pair of spaced apart electrical conductors, and a strip of resistive material disposed between the conductors and extending along their lengths. A strip of heat-sensitive, electrically conductive materia... | 01/19/1993 |
| 4717902 | Electrical components incorporating a temperature responsive device An electrical component comprising a temperature responsive device including an electrically conducting member (1) of spring temper in contact with a thin insulating coating (3) of a substance which decomposes on being subject to an elevated temperature t... | 01/05/1988 |
| 4400680 | Overtemperature detection cable An overtemperature detection cable for use with a fire alarm system, a fire extinguishing system or the like comprises a coaxial assembly of an inner spring wire conductor in a core of thermoplastic dielectric material within an electrically conductive ou... | 08/23/1983 |
| 4306213 | Layered plastic fuse This invention relates to fuses for electrical plugs and more particularly to a high and low overcurrent stratified fuse for use in a low power electrical circuit. The fuse has a layered construction in which a particulate conductive link is cooperatively... | 12/15/1981 |
| 4237513 | Thermoconstrictive disconnect of conductors in electrical apparatus A protective disconnect to prevent overheating of electrical apparatus is described. The device consists of a cutting member accepting a conductor and capable, upon closure, of severing said conductor. The cutting member is surrounded by a thermoconstrict... | 12/02/1980 |
| 4208645 | Fuse employing oriented plastic and a conductive layer A fuse is described in which two fusing modes provide protection at low and high overcurrent conditions. The fuse comprises an oriented plastic substrate with a conductive layer adhered thereto.... | 06/17/1980 |
| 4157526 | Multi-stage heat sensing cable and emergency communication system A heat sensing cable is provided for use in an alarm and/or fire extinguishing system, which is capable of responding to the presence of fire, or excessive heat, and to sound an alarm, actuate fire extinguishing sprinkling equipment, operate other fire ex... | 06/05/1979 |
| 4134092 | Heat activatable electrical switch An irreversible heat-activatable switch includes a heat-shrinkable plastic sleeve and a pair of elongate resilient electrical conductors mounted in cantilevered manner within the sleeve interior. The conductors have a pair of diverging-converging (e.g. ar... | 01/09/1979 |
| 3979709 | Electric fuse having a multiply casing of a synthetic - resin glass-cloth laminate An electric fuse comprises a fusible element, arc-quenching means surrounding said fusible element, a casing of synthetic-resin-glass-cloth laminate housing said fusible element and said arc-quenching means, and a pair of terminal elements arranged at the... | 09/07/1976 |
| 3944961 | Mechanically improved contacts for radiation switches having material that converts from electrically non-conductive to conductive The reliability of radiation switches is improved in accordance with this invention by mechanically modifying the contact members of the switch structure to reduce the heat sinking effectiveness of the switch contact members.... | 03/16/1976 |