Search the Insulator Patent Reference Library:

Total of 55 patents found where: Class is '174'; Subclass is '167';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1864
U	41,157	January 5, 1864	Improvement in Insulators for Telegraph Wires Earthenware (terra-cotta) insulator to hold 3 to 7 wires	HOLLAND, James	Earthenware
		1872
U	123,198	January 30, 1872	Improvement in Telegraphic Insulators and Brackets Cylindrical, slotted insulator with flanges and bracket	ROBERTSON, John	Cylinder
		1883
U	280,947	July 10, 1883	Insulator for Electrical Conductors Cylindrical insulator suspended from wire to hold bar separates several wires	OHL, Percy C.	Cylinder
		1884
U	296,881	April 15, 1884	Insulator Rubber covered ring and knob with lag screw	SEELY, John A.	Rubber
		1886
U	346,475	August 3, 1886	Insulator Block for Electric Conductors Wooden insulator mounted on wire to prevent wire touching other	HAWKEN, Thomas	Wood
		1890
U	426,198	April 22, 1890	Insulator Covers for insulators on crossarms to protect them from rain and reduce electrical leakage	MUNSIE, James F.	Rainshed
		1891
U	444,317	January 6, 1891	Electric Wire Insulating Cleat Cleat	POTTER, John S. CARTWRIGHT, David J.	Cleat	John S. Potter
U	450,708	April 21, 1891	Insulator Lightning rod insulator	CREIGHTON, Theodore	Lightning Rod Insulator
U	451,950	May 12, 1891	Electric Insulator CD 262, CD 263, CD 264, eyes for tie wire	OAKMAN, Samuel	Insulator
		1892
U	477,753	June 28, 1892	Insulator Clamp type	GOOLD, Frederick D'A	Clamp Type	The Edison General Electric Co.
		1893
U	510,837	December 12, 1893	Lightning Rod Ornament Lightning rod ornamental ball with bushing to secure the ball around the rod	COLE, John J.	Lightning Rod Ornament
		1895
U	545,819	September 3, 1895	Electric Insulator CD 268, hole through crown for tie wire	ROTHENBERGER, Daniel M.	Insulator	2/3 to C. Inglis & E. Reilly
		1897
U	574,828	January 5, 1897	Insulator Hanger insulator for end of pole or other support	SMOCK, Benjamin D.	Hanger
		1899
U	637,282	November 21, 1899	Electric Insulator Tube of asbestos to lead conductor through a wall is made water tight (see 608,906) (see 615,896)	POCHE, Joseph Arthur	Insulator
		1904
U	753,399	March 1, 1904	Combination Bracket and Knob for Electric Conductors nail-knob with hole in the top and two side groove for tie-wire (see Western Electrician 4-29-1905)	HUNT, Emory C.	Knob	1/2 to Charles Snyder
U	758,986	May 3, 1904	Tubular Insulator Cylindrical insulator	LOCKE, Fred M.	Cylinder
U	761,102	May 31, 1904	Insulator Insulator for carrying heavy cables composed of cap over the top to surround the conductor to prevent sparking and electrical leakage	RANDOLPH, Leonard M.	Insulator
		1905
U	783,348	February 21, 1905	Insulator Knob - self-tying	WRIGHT, Evans C.	Knob	1/2 to Francis McHenry
		1906
U	823,912	June 19, 1906	Insulator Cylindrical insulator with hole for line wire and hole for tie wire mounted in hole in crossarm and secured with cover over top of crossarm	BIELE, August	Insulator
U	838,163	December 11, 1906	High Tension Insulator Multipart with multiple petticoats under skirts (M-4325C, M-4415, M-4600) (see ID 5166)	BAUM, Frank G.	Insulator
		1907
U	870,187	November 5, 1907	Wall Insulator Wall tube with skirts	LOCKE, Fred M.	Wall Tube
U	870,486	November 5, 1907	Conducting Wire Support and Insulator Split insulator with external threads to screw into hole in crossarm to hold line wire	WISTNER, Harvey W.	Miscellaneous
		1908
U	878,646	February 11, 1908	High Potential Insulator Wall through bushing with multitude of petticoats	LOCKE, Fred M.	Wall Tube
U	893,285	July 14, 1908	Electric Cable Insulator Terminal insulator providing a tight seal between conductor running down through the center of the insulator	TOMPKINS, Edward M.	Insulator
		1909
U	934,463	September 21, 1909	Cleat for Electric Wires Cleat for ceiling wires and fixtures	RITTER, William F.	Cleat
		1912
U	1,020,122	March 12, 1912	Electrical Insulator miscellaneous complicated design of multiple parts and cemented bushing	BOLTON, Daniel G.	Miscellaneous	Frank S. Diener
U	1,033,019	July 16, 1912	Insulator Cover for bridle wire drop	JEWETT, Frank B.	Miscellaneous	American Telephone & Telegraph Co.
		1913
U	1,056,711	March 18, 1913	Crossover Insulator for Electrical Conductors Crossover	SCHAUB, Ferdinand	Crossover
		1923
U	1,447,359	March 6, 1923	Ventilated Line Insulator Electrose pintype insulator with holes in the center to ventilate and reduce heat	STEINBERGER, Louis	Electrose
		1924
U	1,500,626	July 8, 1924	Supporting Insulator Bracket for wireholder knobs and knob with lag screw	KYLE, William D.	Bracket
		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	1,663,421	March 20, 1928	Line Breaker Breaker insulator similar to guy strain	STUBBINGS, Edwin L.	Breaker
U	1,679,345	August 7, 1928	Method and Apparatus for Casting Ceramic Pieces Manufacturing method of casting bushings with a hollow core	AUSTIN, Arthur O.	Manufacturing	The Ohio Brass Co.
		1929
U	1,700,166	January 29, 1929	Insulator for Bridle Wires Dry-spot using coke bottle top & cap	JOHNSON, Benjamin	Dry-spot	American Telephone & Telegraph Co.
U	1,706,237	March 19, 1929	Secondary Rack Wireholder with hole near the bottom for attaching to a metal rack and hole near the top for securing the drop wire.	KYLE, William D.	Wireholder	Line Material Co.
U	1,706,987	March 26, 1929	Electric Wire Insulator Bushing	SCHAFFLER, Oscar	Bushing
U	1,709,477	April 16, 1929	Insulator Wireholder with lag screw	KYLE, William D.	Wireholder	Line Material Co.
U	1,720,181	July 9, 1929	Insulator Wireholder	KYLE, William D.	Wireholder	Line Material Co.
U	1,736,043	November 19, 1929	Insulator Knob	KYLE, William D.	Knob	Line Material Co.
U	1,736,044	November 19, 1929	Screw Insulator Wireholder with lag screw	KYLE, William D.	Wireholder	Line Material Co.
		1930
U	1,749,915	March 11, 1930	Insulator Rack Wireholder mounted on a rack	KYLE, William D.	Wireholder	Line Material Co.
U	1,755,587	April 22, 1930	Insulating Device Crossover	BROAD, William	Crossover	3/4 to Harry McLain
U	1,768,948	July 1, 1930	High Voltage Insulator Suspension insulator	BAUM, Frank G.	Suspension	Westinghouse Electric & Mfg. Co.
		1933
U	1,914,436	June 20, 1933	Insulator Metal terminal built into a secondary rack insulator or wireholder that is used to secure the deadend of the drop wire with the terminal making the connection to the wire leading into the building eliminating the need for soldering or other poor connection (see 1,821,221; 1,821,222; 1,877,903)	KYLE, William D.	Bracket/secondary Rack	Line Material Co.
		1934
U	1,960,171	May 22, 1934	Line Holder for Electric Wires Wireholder that allows tie-off without the use of tie wires by means of a hole in the insulator and slotted top and crown grooves	SEEGER, Adolph M.	Wireholder
U	1,972,614	September 4, 1934	Insulator Cementing and design technique to improve cement joint in cap and pin suspension and equipment support insulators	AUSTIN, Arthur O.	Suspension	The Ohio Brass Co.
U	1,977,957	October 23, 1934	Bus Bar and Bushing Connection Connector to hold bus bar inside a bushing	STEVENS, Leland S.	Bushing	Locke Insulator Corp.
U	1,978,649	October 30, 1934	Bus Bar and Bushing Connection Connector to hold bus bar inside a bushing	ROBERTS, Charles W.	Bushing	Locke Insulator Corp.
U	1,981,717	November 20, 1934	Insulator Suspension cap and pin designed to improve strength of cement joint	AUSTIN, Arthur O.	Suspension	The Ohio Brass Co.
		1936
U	2,050,898	August 11, 1936	Electrical Insulator Wireholder with large hole and lag screw	SELLYE, Howard P.	Wireholder
		1937
U	2,081,832	May 25, 1937	Insulator Wireholder with hole and lag screw	MORGENSTERN, Joseph BRASTY, Joseph	Wireholder
		1938
U	2,139,333	December 6, 1938	Sealed Screw Wire Holder Wireholder with lag screw	PITTMAN, Ralph R. WALSH, Carroll H.	Wireholder
		1940
U	2,191,171	February 20, 1940	Insulator Wireholder with lag screw	LEE, Leffman H. GUTHRIE, James M.	Wireholder	Line Material Co.
U	2,219,727	October 29, 1940	Insulator Structure Wireholder with multiple grooves and lag screw	STEWART, Lory B.	Wireholder	1/3 to Karl Thielscher
		1944
U	2,361,109	October 24, 1944	Insulating Protector for Conducting Wires Tree insulator to protect the wire	KENNEALLY, Martin M.	Tree	The Porcelain Insulator Corp.

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