|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Oil') ORDER BY patent DESC, type|
Total of 10 patents found where: Category is 'Oil';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||1,944,383||January 23, 1934||Oil Bath Insulator
Oil type insulator using oil cup attached to edge of insulator and protective cover attached to prevent contamination from fog or rain
|U||839,666||December 25, 1906||Built up Insulator
Oil used in hidden reservoir of multipart insulator made of Electrose
|U||771,297||October 4, 1904||Insulator
Oil reservoir for transformer insulator
|CHESNEY, Cummings C.
||Oil||Stanley Electric Mfg. Co.|
|U||524,659||August 14, 1894||Insulator
Oil cup with means to support the cup from the insulator (see 517,634)
|WINSLOW, George H.
|U||519,446||May 8, 1894||Trolley Wire Hanger
Glass oil insulator used in trolley wire hanger
|CROUNSE, Albert B.
RUTLEDGE, Charles A.
|U||506,002||October 3, 1893||Insulating Support for Metallic Circuits
Oil cup insulator to support short crossarm for two insulators
|COUSENS, Alfred C.
|U||461,631||October 20, 1891||Insulating Support for Electric Conductors
|HEWETT, Robert J.
|U||201,615||March 26, 1878||Improvement in Insulators for Telegraph Wires
Oil cup insulator
|JOHNSON, Walter C.
PHILLIPS, Samuel E.
|U||76,960||April 21, 1868||Improvement in Insulators for Telegraphs
Oil, wax or rubber saturated insulator to improve same (Brown p. 57)
|VARLEY, Cromwell F.
|U||71,418||November 26, 1867||Improvement in Telegraph Insulators
Cup under insulator (similar to oil insulator) to maintain dry surfaces (see reissue 3,499 on 6-8-1869) Patent was used by Central Electric Co.
|SIMONDS, W. Edgar
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