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Class Information
Number: 174/12R
Name: Electricity: conductors and insulators > With fluids or vacuum > With expansion and contraction means
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6384322 |
Hermetic enclosure having air pressure adjustable function |
May. 7, 2002 |
| 5976226 |
Means to ensure a minimum of gas content in liquids used for heat exchange and insulating purposes with complementary means for liquid expansion into vessels with variable volumes |
Nov. 2, 1999 |
| 5629495 |
Waterproof box-like casing |
May. 13, 1997 |
| 5466890 |
Expansion joint for an electrical conduit which is electrically grounded through the expansion joint |
Nov. 14, 1995 |
| 5466890 |
Expansion joint for an electrical conduit which is electrically grounded through the expansion joint |
Nov. 14, 1995 |
| 5324886 |
Insulating-liquid immersed electrical machine |
Jun. 28, 1994 |
| 5122926 |
Housing for an electric device |
Jun. 16, 1992 |
| 5047744 |
High voltage fluid filled transformer |
Sep. 10, 1991 |
| 4759811 |
Method for repair or accessing pressurized cable |
Jul. 26, 1988 |
| 4700272 |
Apparatus and method for compensation of thermal expansion of cooling fluid in enclosed electronic packages |
Oct. 13, 1987 |
| 4693540 |
Pressure regulating devices |
Sep. 15, 1987 |
| 4609900 |
High-voltage transformer with liquid cooling |
Sep. 2, 1986 |
| 4580002 |
Method and apparatus for replacing flammable oil in an electrical cable and cable so treated |
Apr. 1, 1986 |
| 4555587 |
Enclosure for a power supply |
Nov. 26, 1985 |
| 4502032 |
Ebullition cooled transformer |
Feb. 26, 1985 |
| 4331830 |
Housing for electrical components |
May. 25, 1982 |
| 4251681 |
Compressed gas insulated high voltage line |
Feb. 17, 1981 |
| 4145679 |
Vaporization cooled and insulated electrical inductive apparatus |
Mar. 20, 1979 |
| 4097681 |
Interface for high voltage oil-filled and gas-filled apparatus |
Jun. 27, 1978 |
| 4092484 |
Arrangement to prevent corona discharge and electric rupture in high voltage electrical components |
May. 30, 1978 |
| 4066496 |
Cryogenic expansion joint for large superconducting magnet structures |
Jan. 3, 1978 |
| 4058671 |
Electrical penetration assembly |
Nov. 15, 1977 |
| 4057453 |
Method for manufacturing and laying out phase cores for oil-filled cables and a device for accomplishing same |
Nov. 8, 1977 |
| 4053700 |
Coupling flex-plate construction for gas-insulated transmission lines |
Oct. 11, 1977 |
| 3963297 |
Underwater pressure compensated electrical connector |
Jun. 15, 1976 |
| 3934453 |
Conservator system |
Jan. 27, 1976 |
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