...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7932466 | Nautilus self pressurizing equipment enclosure A gasketless waterproof ingress prevention enclosure for electronics wherein the enclosure does not rely on traditional sealing means to restrain water. The enclosure includes a five-sided open bottom air tight cavity comprising a liquid volume fluidly coupled to a ... | 04/26/2011 |
| 7180004 | Method and arrangement for providing a gas-tight joint A method and arrangement is provided to form a gas-tight joint between an end flange and a tubular rod. The joint is formed via a heat-shrink process to provide an interference fit. The rod is provided with grooves to retain adhesive during the assembly process.... | 02/20/2007 |
| 7158369 | Single phase or polyphase switchgear in an enveloping housing Single phase or polyphase switchgear having one or more switches which are mounted with the aid of solid insulation such that they are insulated, as well as associated live components such as rail systems, connectors and the like. Both the switches and the associate... | 01/02/2007 |
| 7098396 | Method and apparatus for making a lid with an optically transmissive window A metal plate (126) has a plurality of openings (127) extending through it, and is cleaned using a wet hydrogen process (157). Glass windows (106) are then placed in the openings, and are each fused to the metal plate by heat (231)... | 08/29/2006 |
| 7041913 | Method and arrangement for providing a gas-tight housing joint A method and arrangement is provided to form a gas-tight joint between an end flange and a tubular rod. The joint is formed via a heat-shrink process to provide an interference fit. The rod is provided with grooves to retain adhesive during the assembly process.... | 05/09/2006 |
| 7029519 | System and method for gas recycling incorporating gas-insulated electric device A gas recycling system which has a carbon dioxide collecting device for collecting gas containing carbon dioxide from a carbon dioxide source. In the system, at least part of the gas containing sulfur hexafluoride used as an electric insulation medium in a gas-insul... | 04/18/2006 |
| 6914195 | Distribution transformer An oil-filled pole-mounted distribution transformer comprises a tank housing a transformer core-coil assembly immersed in cooling oil. The tank is made of a corrosion-proof composite material and a radiator is provided for cooling the oil. The radiator is external t... | 07/05/2005 |
| 6864416 | Electrostatic charge deionizing lightning conductor An electrostatic charge deionizing lighting conductor has two frameworks having different geometries and being electrically separated from one another, insulators which electrically separate the frameworks from one another and must support the frameworks in the insu... | 03/08/2005 |
| 6855882 | Cascaded inert gas purging system The present invention is a system for protecting, for example, electronic, mechanical, or other components from contamination in a processing environment and includes a distribution manifold, a pressurized fluid in fluid communication with the manifold, and a plural... | 02/15/2005 |
| 6745449 | Method and apparatus for making a lid with an optically transmissive window A metal plate (126) has a plurality of openings (127) extending through it, and is cleaned using a wet hydrogen process (157). Glass windows (106) are then placed in the openings, and are each fused to the metal plate by heat (231)... | 06/08/2004 |
| 6459036 | Cascaded inert gas purging of distributed or remote electronic devices through interconnected electrical cabling The present invention is a system for protecting electronic, mechanical, or other components from contamination which includes a distribution manifold, a pressurized gas in fluid communication with the manifold; and a plurality of apparatuses which are ca... | 10/01/2002 |
| 6307150 | Vacuum seal for FEA's A vacuum seal suitable for use with field emission arrays is described. This seal has high reliability because the expansion coefficients of the metal and the glass are closely matched. Materials traditionally used for cathode and gate lines continue to b... | 10/23/2001 |
| 6180875 | Housing The invention relates to a housing for an electric or an electronic component, in particular a motor vehicle control unit, for which the housing parts or housing connections are designed such that the electric or electronic components are sealed watertigh... | 01/30/2001 |
| 6075204 | Electronics enclosure for use in a food processing environment In a food processing plant electronics used to monitor and control various food processing methods are subject to harsh environmental conditions such as thermal shock, outside contaminants and condensation. An electronics enclosure for minimizing such pro... | 06/13/2000 |
| 6063997 | Gas insulated electric apparatus In a gas insulated electric apparatus having gas sections filled with insulating gas, a locating device determines a position of a gas section in which an insulation abnormality is detected, on the basis of a detection signal from sensors disposed in each... | 05/16/2000 |
| 5959840 | Apparatus for cooling multiple printed circuit board mounted electrical components An electrical component, mounted for example to a printed circuit board, is enclosed in a sealed chamber with an inert gas that permits the electrical leads of the electrical component to be formed from a material having high heat and electrical conductiv... | 09/28/1999 |
| 5949209 | Explosion-proof painting robot An electrically driven explosion-proof painting robot comprises a base having a first pressurized chamber, a rotary base having a second pressurized chamber, an inner arm having a third pressurized chamber and an outer arm having a fourth pressurized cham... | 09/07/1999 |
| 5907122 | Gas insulated electrical apparatus A gas insulated electrical apparatus in which electric devices for three phases are housed within a common gas-filled vessel includes a first and a second curved wall spaced apart from each other by a first distance and a third and a fourth curved wall co... | 05/25/1999 |
| 5786980 | Electrical component package and packaged electrical component A packaged electrical component includes a tubular body having first and second ends and an opening at the first end for receiving an electrical component; an electrical component disposed within the tubular body; an end cap mounted on the first end of th... | 07/28/1998 |
| 5734103 | Sealed wire entry for instrument housing and method of sealing A sealed wire entry port for a housing (10) having a base (12) and a top (11), and a body of sealing material (16) joining the top (11) to the base (12) and a pair of insulated wires (21) in which the insulation (31) is removed where the wires (21) run th... | 03/31/1998 |
| 5576937 | Connector including a connector body, an annular air-tight material and a closure plate to seal an IC A connector for protecting an IC comprising a connector body, a closed plate, and an annular air-tight sealing material. An air-tight chamber is formed centrally of the annular air-tight sealing material by compressing the annular air-tight sealing materi... | 11/19/1996 |
| 5444599 | Capacitor having high stability with temperature A capacitor having high stability with temperature comprising a cylindrical metal body, a cylindrical high tension electrode coaxial with the body and placed inside it, and at least two low tension electrodes constrained to remain in contact against the i... | 08/22/1995 |
| 5262077 | Halocarbon blends Azeotrope-like blends are disclosed comprising effective amounts of 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1-difluoroethane (HFC-152a) and a halocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), 2-chloro-1,1... | 11/16/1993 |
| 5250208 | Ternary azeotropic compositions Azeotropic or azeotrope-like compositions of effective amounts of 1,1,2,2,3,3,4,4,-octofluorobutane; trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, 1,1-dichloroethane, or 1,3-dichloro-1,2,2,3,3-HCFC-225cb; and an alcohol such as methanol, etha... | 10/05/1993 |
| 5248433 | Binary azeotropic mixtures of octafluoropropane and fluoroethane Constant boiling azeotropic or azeotrope-like mixtures of octafluoropropane and fluoroethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyure... | 09/28/1993 |
| 5221493 | Azeotropic compositions of 1,1,2,2,3,3,4,4-octafluorobutane and alcohols or ketones Azeotropic mixtures of HFC-338pcc and an alcohol such as methanol, ethanol, isopropanol or N-propanol, or a ketone such as acetone, are disclosed that are useful as cleaning agents, refrigerants, aerosol propellants, heat transfer media, gaseous dielectri... | 06/22/1993 |
| 5196137 | Azeotropic composition of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichlorethane Azeotropic mixtures of 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) and trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichloroethane are useful as cleaning agents, expansion agents for polyolefins and polyurethanes, refrigerants, aer... | 03/23/1993 |
| 5194170 | Binary azeotropic compositions of 1,1,2,2,3,3,4,4-octafluorobutane and either tran-1,2-dichloroethylene, cis 1,2-dichloroethylene, or 1-1 dichloroethane Azeotropic or azeotrope-like compositions of effective amounts of 1,1,2,2,3,3,4,4-octafluorobutane and trans-1,2-dichloroethylene; cis-1,2-dichloroethylene; or 1,1-dichloroethane to form an azeotropic or azeotrope-like composition are disclosed that are u... | 03/16/1993 |
| 5185094 | Constant boiling compositions of pentafluoroethane, difluoromethane, and tetrafluoroethane Ternary mixtures of pentafluoroethane, difluoromethane and tetrafluoroethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyurethanes, and as p... | 02/09/1993 |
| 5099389 | Gas-insulated electric switchboard An electric switchboard for medium voltages provides for the insulation of the compartments by means of sulfur hexafluoride gas, and each compartment is subdivided into superimposed cells which are metallically separated from one another and are gastight.... | 03/24/1992 |
| 5041695 | Co-fired ceramic package for a power circuit Both a co-fired ceramic package for a power circuit is disclosed as well as a method of manufacture thereof. The package includes a base which is formed from a plurality of pyrolizable ceramic films, each of which includes a heat-conductive and electrical... | 08/20/1991 |
| 5013871 | Kit for the assembly of a metal electronic package A kit for the assembly of an adhesively sealed package designed to encase an electronic device is provided. The kit comprises a metallic base and cover components which are adapted to receive a polymeric adhesive. At least those portions of the base and c... | 05/07/1991 |
| 4963693 | Purge enclosure for electrical equipment in hazardous location A protective or purge enclosure provides a positive atmosphere around an operating device such as a hand-held computer or calculator contained therein. The protective enclosure has sufficient flexibility, even though providing a positive, sealed atmospher... | 10/16/1990 |
| 4935165 | Method for preventing the poor conduction at electrical switch contacts which is caused by organopolysiloxane gas The poor electrical conduction at an electrical switch contact caused by organopolysiloxane gas can be prevented by providing that a nitrogenous base gas be simultaneously present with the organopolysiloxane gas. Nitrogeneous base gases can be aliphatic a... | 06/19/1990 |
| 4897508 | Metal electronic package A metal package for housing an electronic device wherein the electronic device is attached to a severable die attach pad. The die attach pad is bonded to the base of the package with a thermally conductive medium. The base is bonded to the die attach pad ... | 01/30/1990 |
| 4703234 | Charged-particle accelerator With an accelerator for accelerating an electron beam by a voltage of about 400 KV having a stability of 10-6, it is difficult to use a flexible, insulated cable to feed the output from a power supply to an electron beam and an accelerating tub... | 10/27/1987 |
| 4675720 | Enclosed thyristor valve An enclosed thyristor valve of the type dividable into first and second portions comprises a tank, a thyristor valve assembly including a plurality of thyristor elements encased in the tank, a plurality of light guides extending through the tank for trans... | 06/23/1987 |
| 4670342 | Method of making electrical inductive devices for use in hermetic refrigerant atmospheres A method for making an electrical inductive device for use in hermetic atmospheres which incorporate refrigerants such as halogenated methane compositions, for example refrigerant R-22, monochlorodifluoromethane. The device may be a wound coil device form... | 06/02/1987 |
| 4565901 | Gas-insulated electric device A gas-insulated electric device comprising an electric conductor disposed in a sealed vessel filled with an insulating gas, the conductor being supported by a solid insulating member. The insulating gas is a nitrilic fluorocarbon compound or a mixture of ... | 01/21/1986 |
| 4547316 | Insulating gas for electric device An insulating gas for an electric device which comprises pentafluoropropionitrile or a mixture of pentafluoropropionitrile and sulfur hexafluoride and at least one nitrite ester selected from methyl nitrite, ethyl nitrite, propyl nitrite, butyl nitrite, a... | 10/15/1985 |