Search the Insulator Patent Reference Library:

Total of 86 patents found where: Class is '174'; Subclass is '169';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1849
U	6,779	October 9, 1849	Supporter for Telegraph Wires Hook encased in metal shell (also House-top insulator?)	LIVINGSTON, L. R. ROGGEN, J. J. ADAMS, Calvin KENDALL, Amos VAIL, Alfred	Hook
		1858
U	20,916	July 13, 1858	Improved Device for Securing Lightning Rods Lightning rod insulator (glass) with spring clip to hold rod	SCHRAGE, Victor	Lightning Rod Insulator
		1863
U	39,613	August 18, 1863	Improvement in Insulators for Lightning Conductors Lightning rod insulator (glass) to hold conductors with bracket	EAGLES, Edwin	Lightning Rod Insulator	1/2 to J. H. Guion
		1871
U	114,924	May 16, 1871	Improvement in Telegraph Insulators CD 158.1 with metal ring with fingers to hold wire	CHESTER, Stephen	Insulator
		1883
U	269,933	January 2, 1883	Insulator for the Suspension of Electrical Wire Conductors Hook insulator of ""gelatinized or vulcanized fiber""	HIGGS, Paget COURTENAY, William	Hook
		1890
U	418,766	January 7, 1890	Support for Electric Conductors Brodie tree insulator with large lag screw and adjustable position.	SMITH, Joseph Brodie	Tree
U	434,144	August 12, 1890	Electric Insulator Tie wire clip	DUNBAR, John K.	Tie Wire
		1891
U	448,703	March 24, 1891	Support for Electric Line Wires Hanger insulator for trolley conductor	WIRT, Herbert C.	Hanger
U	455,107	June 30, 1891	Insulator Third rail insulator with cup to hold hygroscopic chemical and means to heat insulator to drive off moisture	MUNSIE, James F.	Third Rail
U	461,631	October 20, 1891	Insulating Support for Electric Conductors Oil insulator	HEWETT, Robert J.	Oil
		1893
U	497,515	May 16, 1893	Insulator Cleat with metal clip to hold wire	BRADY, Thomas H.	Cleat
		1894
U	520,602	May 29, 1894	Insulator Composition insulator with ears bent over to secure cable	LUSCOMB, Henry H.	Composition
U	520,855	June 5, 1894	Feed Wire Insulator Composition insulator with ears bent over to secure cable	LIEB, Charles A.	Composition	General Electric Co.
U	522,175	June 26, 1894	Insulator Self-tying with metal cap screws down on two metal ears to hold wire	ANDERSEN, Johan M.	Self-tying Miscellaneous	1/2 to Albert Anderson
U	526,498	September 25, 1894	Conductor Support and Insulator Jeffrey Mine insulator (CD 185)	OSYOR, David N.	Mine	Joseph A. Jeffrey
U	530,706	December 11, 1894	Insulator Composition insulator with clip ears	MCCARTHY, Louis	Composition
		1897
U	578,825	March 16, 1897	Insulator Composition insulator with top cable clamp	LUSCOMB, Henry H. CRANE, William F. D.	Composition	The Johns-Pratt Co.
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
		1899
U	626,065	May 30, 1899	Insulator Tree hanger	HOLMES, Welles E.	Tree
		1901
U	667,103	January 29, 1901	Insulator Slack wire knob with metal suspension clip	SARGENT, Howard R.	Slack Wire	General Electric Co.
U	682,709	September 17, 1901	Insulator Knob to support underground conduit electric railways	JENKINS, Wilton F.	Knob
		1902
U	710,282	September 30, 1902	Insulator Block with metal tabs bent to hold wire	LEFEVER, Edwin	Block
U	712,440	October 28, 1902	Insulator Self-tying with slot and screw clamp	SHREFFLER, James L.	Self-tying Miscellaneous
		1903
U	726,651	April 28, 1903	Electric Wire Support Glass insert in crossarm to insulate a steel pin that supports the conductor	CULLEN, Beauregard	Pin
U	746,469	December 8, 1903	Electrical Wire Support Wire support of cylindrical shape & metal support bolt to underhang wire	CULLEN, Beauregard	Wire
U	746,671	December 15, 1903	Insulator Self-tying via pivoted locking dogs	CARTER, Taylor	Self-tying Miscellaneous
		1905
U	789,573	May 9, 1905	Insulator Self-tying with metal screw plug in top of crown	STEINBERGER, Louis	Self-tying Miscellaneous
U	805,169	November 21, 1905	Insulator and Wire Clamp Self-tying clamping with lever (see 552,501)	TAUBOLD, John F.	Self-tying Miscellaneous
U	805,788	November 28, 1905	Electric Strain Insulator Porcelain or glass strain insulator in compression	FOSTER, Samuel L.	Strain
		1906
U	829,646	August 28, 1906	Insulator Self-tying with crown clamp on multipart	GODDARD, Walter T.	Self-tying Miscellaneous	Locke Insulator Mfg. Co.
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
U	838,482	December 11, 1906	Insulator for Line Conductors Insulator formed with recesses for pipe pin and metal insert crown	WEED, James Murray	Insulator
		1907
U	843,258	February 5, 1907	Insulator Clamp Clamp type metal cable holder	CLARK, Walter G.	Clamp Type	The Clark Electric & Mfg. Co.
U	843,259	February 5, 1907	Insulator Clamp type metal cable holder	CLARK, Walter G.	Clamp Type	The Clark Electric & Mfg. Co.
U	849,731	April 9, 1907	Insulator Metal crown cap	FEUERSTEIN, Siegmund	Metal
		1908
U	887,107	May 12, 1908	Wire Fastener for Insulators Wire fastener for crown wire groove of insulator	LOCKE, Fred M.	Wire
U	895,171	August 4, 1908	Cable Hanger Cable hanger for two part Duncan suspension	DUNCAN, John D. E.	Suspension
		1909
U	922,477	May 25, 1909	Electric Line Insulator Self-tying with side grooves	HENRY, Robert	Self-tying Miscellaneous
		1910
U	946,623	January 18, 1910	Insulator for Electric lines Metal cap cemented on crown to hold wire in crown or side groove	VARNEY, Theodore	Cap	Westinghouse Electric & Mfg. Co.
U	947,274	January 25, 1910	Suspension Device for Insulators Suspension with ball and socket coupling	AUSTIN, Arthur O.	Suspension	The Akron Hi-Potential Porcelain Co.
U	955,065	April 12, 1910	Insulator miscellaneous oddball	HARDIN, Cornelious C.	Miscellaneous
U	955,661	April 19, 1910	Insulator Under crossarm type (see 1,694,415)	MOORE, William Enoch	Under Crossarm
U	966,583	August 9, 1910	Insulator Protecting Apparatus Multipart protected by arcing ring	NICHOLSON, Lloyd C.	Multipart
		1911
U	998,359	July 18, 1911	High Voltage Insulator Suspension type	LOCKE, Fred M.	Suspension	Locke Insulator Mfg. Co.
U	1,010,181	November 28, 1911	Electric Cable Protector Protective shield mounted on top of the insulator to support the conductor.	SANDFORD, JR., Joseph Addison	Protective Shield	The R. Thomas & Sons Co.
		1912
U	1,022,993	April 9, 1912	Insulator Insulator with external threads to be screwed into metal shield and entire unit screwed into underside of the crossarm	WILLIS, George W.	Insulator
U	1,043,321	November 5, 1912	Combined Insulator and Current Distributor Miscellaneous style with attachment for multiple current distributors (see 1,085,813)	KNUTZ, Ernest H.	Miscellaneous
		1913
U	1,069,782	August 12, 1913	Electric Insulator Multipart cable clamp using metal crown cap	HILLIARD, John D.	Multipart
		1914
U	1,101,802	June 30, 1914	Conductor Clamp Clamp attached to insulator wire groove to hold a vertivcal duplex conductor to street lamp (see 1,140,050)	KENNEDY, Matthew G.	Clamp	The States Co.
U	1,105,521	July 28, 1914	Insulator Attachment Tie wire clamp	KEPHART, John A.	Tie Wire
U	1,118,545	November 24, 1914	Wire Clamp for Insulators Complicated tie wire replacement with U-bolt and metal strap to secure and clamp to the line wire	GIOVANNONI, Charles	Tie Wire
		1915
U	1,128,424	February 16, 1915	Insulator Suspension multipart insulator fitted with arcing horns	DUNCAN, John D. E.	Suspension
U	1,144,672	June 29, 1915	Fused Test Clamp Insulator miscellaneous fused test clamp-insulator	WHEALE, George	Miscellaneous
		1917
U	1,219,450	March 20, 1917	Insulator Suspension with interlocking linkage similar to Hewlett and hog liver	FOWLE, Frank F.	Suspension
U	1,228,711	June 5, 1917	Connecting Device for Chain-Type Insulators Suspension link coupling	STEINBERGER, Louis	Suspension
U	1,235,106	July 31, 1917	Insulator Attachment Metal clip mounted in top of insulator to secure the conductor	BURNETT, Adelbert C.	Tie Wire
U	1,236,668	August 14, 1917	Insulator Clamping Device Clamp for crown of large insulator	BROWN, James M.	Clamp	Westinghouse Electric & Mfg. Co.
U	1,249,820	December 11, 1917	Insulator Composition insulator with side cable clamp	PHARO, Harry A. SCHAAKE, William	Composition	Westinghouse Electric & Mfg. Co.
		1918
U	1,266,615	May 21, 1918	Insulator Clamp Clamp for crown of large insulator	NICOL, David S.	Clamp	Shawinigan Water & Power Co.
U	1,274,555	August 6, 1918	Choke Coil Mounting Secure mounting of a choke coil on top of two multipart insulators fitted with metal brackets clamped to the crown (see 1,574,964 and 1,663,007)	JACOBS, Ernest H.	Choke Coil	Electrical Engineers Equipment Co.
		1919
U	1,296,587	March 4, 1919	Insulator Clamp for crown of large insulator to resist strain of curves	SCHAAKE, William	Clamp	Westinghouse Electric & Mfg. Co.
U	1,311,067	July 22, 1919	Insulator Multipart similar to Faradoid patent 1,374,998 (see reissue 14,888 on 6-22-1920)	GODDARD, Walter T.	Multipart
		1920
R	14,888	June 22, 1920	Insulator Multipart design similar to Faradoid 1,374,998 (reissue of 1,311,067)	GODDARD, Walter T.	Multipart	Locke Insulator Mfg. Co.
		1926
U	1,574,964	March 2, 1926	Insulation Equipment Special insulator design for bus bar and equipment support (see 1,274,555 and 1,663,007)	GETTS, Frank E.	Insulator	Electrical Engineers Equipment Co.
U	1,590,381	June 29, 1926	Insulator Cap Iron insulator cap cemented to top of insulator to support electrical equipment	KERR, Benjamin W.	Cap	Railway and Industrial Engineering Co.
U	1,594,207	July 27, 1926	Insulator Wireholder with lag screw and ring	KYLE, William D.	Wireholder	Line Material Co.
U	1,602,873	October 12, 1926	Support for Electrical Fixtures Bus bar support for top of insulator	ANSINGH, Herman K.	Bus Bar	Westinghouse Electric & Mfg. Co.
		1927
U	1,625,601	April 19, 1927	Insulator Suspension insulator made of multiple sections that are clamped together in the field	GODDARD, Walter T.	Suspension	Locke Insulator Corp.
		1928
U	1,659,731	February 21, 1928	Insulator Protective shield	GREEN, Estill I.	Protective Shield	American Telephone & Telegraph Co.
U	1,663,007	March 20, 1928	Electric Conductor Support Insulator attachments to support equipment (see 1,274,555 and 1,574,964)	JACOBS, Ernest H.	Equipment	Electrical Engineers Equipment Co.
		1929
U	1,702,235	February 12, 1929	System of Line Insulation and Insulators Therefor Odd Electrose insulator	STEINBERGER, Louis	Insulator
U	1,712,432	May 7, 1929	Electrical Insulator Assembly Suspension using Hewletts for novel electric switch	HAGERMAN, Alva Lloyd	Suspension
U	1,725,097	August 20, 1929	Insulator Structure Metal parts of suspension insulators are coated with rubber or resin to help prevent or reduce flashover	NAYLOR, William K.	Suspension	Westinghouse Electric & Mfg. Co.
U	1,739,637	December 17, 1929	Insulator Multipart porcelain pedestal insulator with threaded holes in the metal cap to bolt another insulator on top	HAWLEY, Kent A.	Pedestal	Locke Insulator Corp.
		1930
U	1,776,557	September 23, 1930	Pedestal Insulator Pedestal insulator similar to suspension disk with metal cap and pin to bolt other units to	HAWLEY, Kent A.	Pedestal	Locke Insulator Corp.
		1932
U	1,841,949	January 19, 1932	Insulator With Caps Steel cap cemented to top of insulator with bolts for stacking insulators	HAWLEY, Kent A.	Miscellaneous	Locke Insulator Corp.
		1933
U	1,937,764	December 5, 1933	Insulator Self-tying tree insulator with mounting lag screw and convoluted metal wire clip cemented in the porcelain insulator designed such that the insulator is turned to allow the conductor to be dropped in the slot between the ends of the wire clip and then the insulator is turned 90 degrees to secure the condutor in the wire clip.	KYLE, William D.	Tree Insulator	Line Material Co.
		1934
U	1,976,418	October 9, 1934	Attachment for Insulators Attachment for strain insulator	STINSON, William L.	Strain	Jeffery-Dewitt Insulator Co.
		1935
U	1,988,369	January 15, 1935	Radio Interferenceproof Insulator Metal cap cemented into recessed formed in top of pin type insulator	BROWN, Harold H.	Metal	Locke Insulator Corp.
		1938
U	2,117,381	May 17, 1938	Insulator Cap Tie wire replacement using a cap or collar that fits around the insulator to hold the line wire that can be installed from the ground	WARD, Leonard	Tie Wire
U	2,135,360	November 1, 1938	Conductor Support Clamp type with metal cemented to crown for holding cable	TAYLOR, John J.	Clamp Type	The Ohio Brass Co.
		1939
U	2,173,510	September 19, 1939	Conducting Holder for Luminous Tube Terminals Neon terminal holder	BELLOWS, Lewis F. R.	Neon
		1942
U	2,278,330	March 31, 1942	Multipost Line Insulator Two post insulators joined together with elongated metal bottom cap	MEYER, Edwin M.	Insulator	Porcelain Products, Inc.
		1949
U	2,475,230	July 5, 1949	Conductor Support Clamp-top design to secure conductor on top of the insulator	FREY, Howard Albert MCCOY, Robert Leslie	Clamp-top	Locke, Inc.
		1950
U	2,533,621	December 12, 1950	Electric Insulator Spool type electric fence insulator with ribs and flat area for metal bracket to attach.	PRATT, Elbert H. CHRISTIE, Ralph C.	Electric Fence
		1971
U	3,582,538	June 1, 1971	Prestressed Insulator Prestressing post type insulators by making porcelain in compression in order to increase cantilever load	KILLIAN, Stanley C. DEWEY, Benjamin F.	Post Type	Interpace Corp.

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