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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '174') AND (category.subclass = '195') ORDER BY date ASC, patent, type

Total of 29 patents found where: Class is '174'; Subclass is '195';

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T / S Patent Date Description Patentee Category Assigned To
 1872
U 126,027 April 23, 1872 Improvement in Insulators for Telegraph Wires
Rubber coated flattened pin coated with mica for porcelain insulator with a cap		 CONKLIN, JR., Joseph I.
 Rubber  
 1878
U Specimen known 201,615 March 26, 1878 Improvement in Insulators for Telegraph Wires
Oil cup insulator		 JOHNSON, Walter C.
PHILLIPS, Samuel E.
 Oil  
 1884
U 305,020 September 9, 1884 Insulator for Lightning Rods
Lightning rod insulator of two interlocking parts		 RUTH, John Anthony
 Lightning Rod Insulator  
 1887
U 359,812 March 22, 1887 Insulator for Supporting and Holding Electric Wires
Cleat type for holding house wiring		 PENNIE, Henry
 Cleat 1/2 to Louis Schleip
 1890
U 443,174 December 23, 1890 Insulator
Wooden insulator used in a trolley wire hanger		 EMMET, William Le Roy
 Wood  
 1892
U 485,106 October 25, 1892 Insulator
Knob of mica with side groove to hold wire		 LEE, Charles T.
 Knob The Johns-Pratt Co.
 1897
U 580,628 April 13, 1897 Insulator and Insulating Conduit or Tubing for Electrical Purposes
Composition insulator of asbestos and cement		 TREHARNE, Frederick G.
 Composition  
U 592,505 October 26, 1897 Electrical Insulator
Protective coating of elastic material and wire groove protector		 BARBOUR, Wellington
 Protective Coat  
 1902
U Specimen known 701,847 June 10, 1902 Insulator
CD 317.8, CD 313 & CD 313.1 stacking glass sections		 CONVERSE, Vernon G.
 Insulator Hemingray ????
U Specimen known 701,848 June 10, 1902 Insulator
Stacking glass sections with sections fused or cemented together		 CONVERSE, Vernon G.
 Stack Hemingray ????
 1903
U Specimen known 735,212 August 4, 1903 Insulator
CD 317.7, insulator with glass sleeve (CD 314)		 CONVERSE, Vernon G.
 Insulator  
 1905
U 786,690 April 4, 1905 Multiple Hood Insulator
Electrose multipart pin type (Brown p. 70)		 STEINBERGER, Louis
 Electrose  
U 806,509 December 5, 1905 Composite Insulator
Multipart insulator made of Electrose with parts screwed together		 STEINBERGER, Louis
 Multipart  
 1906
U 839,666 December 25, 1906 Built up Insulator
Oil used in hidden reservoir of multipart insulator made of Electrose		 STEINBERGER, Louis
 Oil  
 1908
U Specimen known 882,803 March 24, 1908 Insulator
CD 211		 STORROR, Leonard W.
 Insulator  
U 884,641 April 14, 1908 Hanging Insulator
Suspension with multipart shells and cable clamp		 CLARK, Walter G.
 Suspension  
U 887,996 May 19, 1908 Combined Insulator and Lamp Hanger
Hanger for lamp		 BURGE, James M.
 Hanger  
 1909
U 913,439 February 23, 1909 Disk Insulator
Electrose pintype insulator with multiple parts and skirts		 STEINBERGER, Louis
 Electrose  
 1915
U 1,161,080 November 23, 1915 Insulator
Self-tying screw top		 SPICER, Frank M.
 Self-tying Screw Top  
 1928
U 1,663,011 March 20, 1928 Line Conductor Insulator
Wireholder with lag screw and bolt attachment		 KYLE, William D.
 Wireholder Line Material Co.
U 1,684,312 September 11, 1928 Electrical Insulator
Self-tying slot top		 FISCHER, John J.
PAYNE, Warren R.
 Self-tying Slot Top  
 1930
U 1,742,625 January 7, 1930 Process of Uniting by Sealing the Insulating Parts of High Tension Insulators
Cement of rubber used to cement multipart insulator		 WECKERLE, Ferdinand
 Cement Studiengesellschaft Fuer Wirtschaft U. Industrie, M. B. H.
U Specimen known 1,760,983 June 3, 1930 Insulator
CD 194.5, CD 195.5 transposition		 GORDON, Chester S.
LOWE, James T.
 Insulator American Telephone & Telegraph Co.
 1933
U 1,927,639 September 19, 1933 Electric Insulator
Suspension insulator with hole in top to insert pin, plug to cement in the hole, and cap cemented over the top		 GRAMSS, Ernst
 Suspension  
 1939
U Specimen known 2,165,773 July 11, 1939 Insulator for Communication Systems
CD 142, CD 142.4 - glass insert screwed in skirt with metallic iridizing		 WHEEER, Herbert H.
MCGINNIS, Orris
 Insulator Western Union Telegraph Co.
 1952
U 2,623,094 December 23, 1952 Resiliently Mounted Spool Type Insulator
Rubber bushing for mounting Case type & rack type spool insulators		 MARKLEY, William F.
 Rubber Western Union Telegraph Co.
 1959
U 2,870,244 January 20, 1959 Glass Insulator Assembly Units
Glass toughened by stream of air after forming		 JELLYMAN, Philip E.
 Glass Pilkington Brothers Limited
 1977
U 4,047,279 September 13, 1977 Upgrading Current Distribution Insulators
Miscellaneous insulator with male screw to receive existing insulator for upgrading		 PETTIT, Ernest E.
 Miscellaneous W. Leon Sell/Ernest E. Pettit/R. Don Sell
 1988
U 4,757,162 July 12, 1988 Rigid Electrical Insulator Including a Lightly Tempered Soda-Lime Glass Dielectric
Glass insulator with controlled stress and compression		 DUMORA, Denis
PARANT, Jean-Paul
PARGAMIN, Laurent
 Glass Ceraver

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