Search the Insulator Patent Reference Library:

Total of 118 patents found where: Class is '174'; Subclass is '165';

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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
		1867
U	66,453	July 9, 1867	Improvement in Insulators for Telegraphs Earthenware pin and insulator saturated with tar	BOYNTON, John F.	Earthenware
U	71,564	November 26, 1867	Improvement in Telegraph Insulators Metal shell lined with glass or porcelain with wooden pin and paraffin cavity	WOOD, Merritt L.	Metal	2/3 to S. Porter & L. M. Monroe
		1869
R	3,499	June 8, 1869	Improvement in Telegraph Insulators Cup under insulator (similar to oil insulator) to maintain dry surfaces (see 71,418)	SIMONDS, W. Edgar	Cup
		1872
U	122,961	January 23, 1872	Improvement in Telegraph Insulators Wooden insulator coated with tar with metal cap	POND, Chester H.	Wood
		1874
U	154,258	August 18, 1874	Improvement in Telegraph Insulators Slotted insulator to hold wire	LE BARON, Charles L.	Slotted
		1882
U	255,800	April 4, 1882	Insulator for Electrical Conductors Pin hole with spiral slot to receive pin with side knob	LEWIS, Albert C.	Pin
		1884
U	298,593	May 13, 1884	Insulator Washer around pin in pinhole	LEWIS, Joseph Slater	Washer	1/2 to William P. Thompson
U	303,261	August 12, 1884	Cap for Telegraph and Telephone Poles Pin designed to cover top of pole to protect the pole from weather	BROOMHALL, George L.	Pin
		1885
U	310,931	January 20, 1885	Device for Securing Electric Wires to Poles Pin with plate flange to wrap around pole without drilling a hole	BLOOMHALL, George L.	Pin
U	319,447	June 9, 1885	Insulator Wire groove projections through metal cover to contact wire	BROOMHALL, George L.	Wire
		1886
U	336,276	February 16, 1886	Insulator for Telegraph Wires miscellaneous - groove in crown for 2 or more wires of different size	WILSON, John	Miscellaneous
U	349,788	September 28, 1886	Insulator Knob	FITCH, Nathan T.	Knob
		1889
U	415,504	November 19, 1889	Insulator Insulator with internal spring to hold tension on the wire	FOWLER, George	Spring
		1890
U	427,296	May 6, 1890	Insulator CD 141.8 and CD 1037, self-tying with tapered pin hole & clamping flange	BUZBY, Joseph F.	Insulator
		1892
U	472,529	April 12, 1892	Insulator Support Pin (metal) with wooden cob for glass insulators	DOREN, Dennis	Pin
U	476,207	May 31, 1892	Insulator Pin Pin	LOCKE, Fred M.	Pin
U	484,209	October 11, 1892	Insulator CD 285 ""Edison"" - rainshed type for under crossarm	LOCKE, Fred M.	Insulator
U	485,106	October 25, 1892	Insulator Knob of mica with side groove to hold wire	LEE, Charles T.	Knob	The Johns-Pratt Co.
		1893
U	497,515	May 16, 1893	Insulator Cleat with metal clip to hold wire	BRADY, Thomas H.	Cleat
		1894
U	514,221	February 6, 1894	Insulator Pin sleeve	GRAY, Lawrence B.	Pin
U	517,634	April 3, 1894	Pin for Insulators Pin for use with oil cup, CD 244 (see 524,659)	WINSLOW, George H.	Insulator
U	520,367	May 22, 1894	Insulator Transposition insulator CD 204 & U-192A	LOCKE, Fred M.	Insulator	1/2 to G. Paddock & W. Page
		1895
U	547,660	October 8, 1895	Insulator Pin and Insulator Pin through crossarm for insulator top & bottom of crossarm	CARROLL, Charles F.	Pin	1/2 to Thomas Scott
		1896
U	554,664	February 18, 1896	Means for Supporting and Insulating Electric Conductors Pin coated with water repelling material	ECKERT, Thomas T.	Pin
U	557,600	April 7, 1896	Insulator Pin with spring coil	PETERSON, Cyrus A.	Pin
		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	586,372	July 13, 1897	Insulator Self-tying slot top with perpendicular hole for retainer	STEINBERG, JR., Henry W.	Self-tying Slot Top
		1898
U	601,195	March 22, 1898	High Potential Insulator Inner skirt extending down to the crossarm or through the crossarm to prevent arcing from the petticoat edges to the pin, U-944. (see patent 600,475) (see patent gb1898-0006235)	BOCH, John W.	Insulator	The R. Thomas & Sons Co.
U	605,109	June 7, 1898	Insulator Insulator with sleeve to protect pin	LOCKE, Fred M.	Insulator
U	605,256	June 7, 1898	Insulator CD 288, U-938 & U-945	MERSHON, Ralph D.	Insulator
		1899
U	619,555	February 14, 1899	Telegraph Insulator Self-tying screw top	FRANTZ, Isaac B.	Self-tying Screw Top
U	634,568	October 10, 1899	Insulating Support for Electric Wires CD 309, U-416, under-crossarm type for better protection from rain	BEAL, Carroll N.	Insulator
		1900
U	664,176	December 18, 1900	Electric Insulator Knob - self-tying via screw cap	RISLER, Emil	Knob
		1901
U	666,586	January 22, 1901	Insulator Insulator & crossarm (glass) reinforced with embedded metal wires	WOOLBERT, Henry W.	Insulator
U	676,881	June 25, 1901	Self-Locking Insulator and Pin U-376, U-376A, U-376B, U-376C, U-376D	ETHERIDGE, Harry	Insulator
U	685,776	November 5, 1901	Insulator Support Pin sleeve plug with bolt to draw down & expanding sleeve in pin hole	LOCKE, Fred M.	Pin
U	689,218	December 17, 1901	Electrical Insulator Pin sleeve (see design 34,211 for U-966)	PARKS, Albert F.	Insulator	Lewis Stillwell
		1902
U	698,976	April 29, 1902	Sleeve for Protecting Insulator Pins Pin sleeve to protect pin	LOCKE, Fred M.	Pin
U	701,063	May 27, 1902	Insulator Pin Pin	LOCKE, Fred M.	Pin
U	712,440	October 28, 1902	Insulator Self-tying with slot and screw clamp	SHREFFLER, James L.	Self-tying Miscellaneous
		1903
U	732,088	June 30, 1903	Insulator for High Tension Currents Bracket clamped around pole for insulator pin	LEMSTROM, Karl Selim	Bracket
		1904
U	751,831	February 9, 1904	Insulator Pin Pin (metal) with webs and circular member to support inside surface of skirt	BULLARD, James H.	Pin
U	772,553	October 18, 1904	Insulator Pin Pin (metal) composed of bars or rods attached to a metal plate	BULLARD, James H.	Pin
U	775,592	November 22, 1904	Insulating Support for Electric Third Rails Third rail with two bolts to secure it to the support and a metal cap to secure the rail.	BARARD, Walter Hubbard	Third Rail
U	778,005	December 20, 1904	Electric Insulator Pin hole with groove inside of pin hole & on pin	BOOKER, Charles	Pin
		1905
U	783,230	February 21, 1905	Insulator Support Steel pin supporting Electrose cover composed of threads and gutter at the bottom for transmitting water away from pin	STEINBERGER, Louis	Pin
U	796,977	August 8, 1905	Insulator Pin Pin	LOCKE, Fred M.	Pin
U	806,717	December 5, 1905	High Voltage Insulator Skirt (inner) cemented to insulator & extending to crossarm	THOMAS, George W.	Skirt	The R. Thomas & Sons Co.
		1906
U	821,746	May 29, 1906	Insulator Pin - method of cementing into insulator sleeve and attaching to insulator	RICHARD, Augusto	Pin	Societa Ceramica Richard-Ginori
U	823,461	June 12, 1906	Insulator Pin Pin (metal) made of wire loops and sliding grooved, ribbed bar for threads	BULLARD, James H.	Pin
		1907
U	848,506	March 26, 1907	Insulator Pin and Support Therefor Pin made of Electrose	STEINBERGER, Louis	Pin
U	852,730	May 7, 1907	Insulator U-957, broad skirt extending to crossarm with small threaded porcelain thimble	LOCKE, Fred M.	Insulator
U	853,743	May 14, 1907	Insulating Device Pin made of Electrose with flange on bottom	STEINBERGER, Louis	Pin
U	855,261	May 28, 1907	Insulator Pin Pin made of Electrose with flanges	STEINBERGER, Louis	Pin
U	855,355	May 28, 1907	High Potential Insulator Electrose multipart insulator for high voltages	STEINBERGER, Louis	Electrose
U	868,122	October 15, 1907	Electric Insulator Multipart with glass skirt and two-piece head similar to Locke 25	POINAN, Francis J.	Multipart
U	872,216	November 26, 1907	Insulator Self-tying with cam lever	BODLEY, Homer D.	Self-tying Miscellaneous
		1908
U	879,068	February 11, 1908	Insulator for High Tension Currents Odd electrose insulator with large hood over the top	STEINBERGER, Louis	Electrose
U	894,616	July 28, 1908	Insulator and Wire Clamp U-401 and U-401A, insulator & wire clamp	FAY, John L.	Insulator
U	905,414	December 1, 1908	Metallic Insulator Pin Pin, split metal	ETTE, Charles G.	Pin	Ette Investment Co.
U	906,003	December 8, 1908	Insulator Pin Pin (metal) with split threads for cushion material and wedge end in crossarm	ETTE, Charles G.	Pin	Ette Investment Co.
		1909
U	915,330	March 16, 1909	Insulator and Wire Clamp Self-tying twist lock type	BLACKBURN, Jasper	Self-tying Twist
U	930,750	August 10, 1909	Insulator Protective shield & splash preventor on pin under insulator	GRAHAM, Charles M.	Protective Shield
U	930,751	August 10, 1909	Reinforced Wooden Support for Insulators Splash preventor horizontal on pin under insulator	GRAHAM, Charles M.	Splash
		1910
U	955,661	April 19, 1910	Insulator Under crossarm type (see 1,694,415)	MOORE, William Enoch	Under Crossarm
		1911
U	992,397	May 16, 1911	Insulator Self-tying screw top	ANDERSON, Milton E.	Self-tying Screw Top
U	995,123	June 13, 1911	Insulator Pin Pin, metal with threaded bushing	ETTE, Charles G.	Pin	Ette Investment Co.
U	1,012,724	December 26, 1911	Insulator Support Bracket for pin-type insulator with wooden cob & mounted on a pipe	SESSIONS, Edson O.	Bracket	Fay Woodmansee
		1912
U	1,013,250	January 2, 1912	Insulator Pin Pin for mine insulator comprised of split sheet metal	WILSON, Walter J.	Pin
U	1,047,176	December 17, 1912	Cross Arm Crossarm stamped out of sheet metal and easy to install	CRABTREE, Lawrence L. RIPLEY, T. Charley	Crossarm
		1913
U	1,056,998	March 25, 1913	Insulator Means of insulating and supporting a bussbar.	JAMIESON, Bertrand G. KELLER, Carl A.	Bussbar
U	1,059,903	April 22, 1913	Insulator with Fuse Insulator with fuse in the bottom	PETTERSEN, Kristian	Fuse Holder
U	1,065,737	June 24, 1913	Insulator and Support Spiral conical insulator for tightening of line wire	SLONECKER, Abiram J.	Spiral
U	1,065,983	July 1, 1913	Insulator Pin (metal) formed from sheet metal	STOCKWELL, Millard E.	Pin
		1914
U	1,094,852	April 28, 1914	Insulator Pin Pin, metal flanged to fit crossarm and interior bolt for attachment to thimble	HECHT, Julius L. GAPEN, Jotham C.	Pin	1/2 to Electric Service Supplies Co.
		1916
U	1,171,126	February 8, 1916	Insulator Pin Pin, sheet metal formed cone and threads	LINDHOLM, John G. S. LINDHOLM, Anders P.	Pin	Anders P. Lindholm
U	1,192,690	July 25, 1916	Insulator Supporting Structure Pin (metal) for mounting on crossarm in combination with a threaded thimble	SCHAAKE, William	Pin	Westinghouse Electric & Mfg. Co.
		1918
U	1,258,211	March 5, 1918	Insulator Support Multipart supporting pin	GODDARD, Walter T.	Multipart	Locke Insulator Mfg. Co.
U	1,258,816	March 12, 1918	Insulator Pin Steel pin with conical support base that fits in grooved steel base that fits over the top of the crossarm	ROSENFELD, Mortimer C.	Pin
		1920
U	1,328,687	January 20, 1920	Insulator Support Thimble of metal for multipart insulator	PLIMPTON, Bentley A.	Thimble
		1922
U	1,435,225	November 14, 1922	Insulator Pin, wooded covered with metal for strength and to keep wood dry	GILCHREST, George Irving	Pin	Westinghouse Electric & Mfg. Co.
		1923
U	1,444,434	February 6, 1923	Insulator Supporting Pin Pin with corkscrew for threading into bottom of Electrose insulator	STEINBERGER, Louis	Pin
		1924
U	1,500,626	July 8, 1924	Supporting Insulator Bracket for wireholder knobs and knob with lag screw	KYLE, William D.	Bracket
		1925
U	1,528,580	March 3, 1925	Insulator Pin Unique hollow steel pin with bottom halves that widen when the insulator is screwed down on the pin thus gripping the hole in the crossarm and securing the pin and allowing a tap wire to run from the line conductor down through the center of the pin	STAUB, Arthur J.	Pin
		1926
U	1,594,207	July 27, 1926	Insulator Wireholder with lag screw and ring	KYLE, William D.	Wireholder	Line Material Co.
		1927
U	1,613,464	January 4, 1927	Reinforced Insulator Wireholder with lag screw and or U-shaped metal bracket	KYLE, William D.	Wireholder	Line Material Co.
U	1,651,704	December 6, 1927	Line Insulator Wireholder with lag screw	HENDEE, Lem E.	Wireholder	Line Material Co.
		1928
U	1,664,172	March 27, 1928	Insulator Knob with metal hook to hold wire	HOLLER, John R.	Knob
U	1,674,905	June 26, 1928	Insulator Wireholder with lag screw embedded in eye-shaped insulator	KYLE, William D. HENDEE, Lem E.	Wireholder	Line Material Co.
U	1,685,833	October 2, 1928	Process of Manufacturing Insulator Pins Manufacturing method to make steel pins for wooden crossarms	AUSTIN, Arthur O.	Manufacturing	The Ohio Brass Co.
		1929
U	1,709,477	April 16, 1929	Insulator Wireholder with lag screw	KYLE, William D.	Wireholder	Line Material Co.
U	1,712,860	May 14, 1929	Transposition Pin Pin (metal) through crossarm for transposition	WEIMAR, Robert	Pin
U	1,729,532	September 24, 1929	Electrical Insulator Cap and pin design for suspension insulator	ZIESCHE, Otto Paul	Suspension	Hermsdorf-Schomburg-Isolatoren G. M. B. H.
		1930
U	1,755,971	April 22, 1930	Insulator Neon, knob to support wires for neon sign (""spook"" insulator)	SMALLEY, Robert C.	Neon	Claud Neon Lights, Inc.
		1931
U	1,790,273	January 27, 1931	Insulator Wireholder with internal threaded metal core to receive a threaded shank that can be fixed to a wall	LEE, Leffman H.	Wireholder
U	1,807,878	June 2, 1931	Insulator Supporting Post Steel pin with sheet metal threads	SEYLER, Carl P.	Pin
U	1,810,950	June 23, 1931	Insulator Rubber self-tying insulator	EARHART, Albert C.	Rubber
U	1,838,319	December 29, 1931	Insulator Wireholder with lag screw	MILLER, Charles E.	Wireholder
		1932
U	1,864,300	June 21, 1932	Anchor Device Metal attachment device for wireholders	FORREST, Elbert E.	Wireholder	Line Material Co
U	1,880,766	October 4, 1932	Support for Insulators Steel pin with waterproof fiber threads and cone cover	BURKE, Edmund	Pin	Brown Company
		1934
U	1,960,681	May 29, 1934	Insulating Support Pin Steel pin with malleable thread thimble with limited contact with the pin to aid in cushioning insulator	PEIRCE, JR., Charles L.	Pin	1/2 to Hubbard & Co.
		1936
U	2,032,017	February 25, 1936	Sheet Metal Insulator Support Pin and Method of Making the Same Steel sheet metal pin easily manufactured	HOCHER, Andrew A. LASHER, Marshall	Pin	Hubbard and Co.
U	2,050,898	August 11, 1936	Electrical Insulator Wireholder with large hole and lag screw	SELLYE, Howard P.	Wireholder
		1937
U	2,099,098	November 16, 1937	Bracket for Electrical Wires Wireholder with lag screw	BINKLEY, William J.	Wireholder	James R. Kearney Corp.
		1938
U	2,139,332	December 6, 1938	Wire Holder Wireholder with lag screw	PITTMAN, Ralph R. WALSH, Carroll H.	Wireholder
U	2,139,333	December 6, 1938	Sealed Screw Wire Holder Wireholder with lag screw	PITTMAN, Ralph R. WALSH, Carroll H.	Wireholder
		1939
U	2,155,189	April 18, 1939	Electrical Wire Bracket Wireholder with lag screw	HEINRICH, Walter A.	Wireholder	James R. Kearney Corp.
		1941
U	2,228,196	January 7, 1941	Insulator Wireholder with lag screw	BOCH, Oscar A.	Wireholder
U	2,228,804	January 14, 1941	Insulator Pin Pin made of Bakelite and nailed underneath the crossarm	ADAMS, Basil R. S.	Pin
U	2,259,526	October 21, 1941	Insulator Wireholder with lag screw (see reissue 22,269 on 4-11-1944)	LEMONT, Clarence J.	Wireholder	Line Material Co.
		1942
U	2,269,409	January 6, 1942	Wire Holder Wireholder with lag screw	MCCHESNEY, JR., Samuel Waldrop	Wireholder	Porcelain Products, Inc.
U	2,286,496	June 16, 1942	Wire Holder Wireholder with lag screw	MEYER, Edwin M.	Wireholder	Porcelain Products, Inc.
U	2,292,948	August 11, 1942	Insulator and the Like Wireholder with slot for attaching lag screw	KENDALL, Earl H.	Wireholder
U	2,297,600	September 29, 1942	Insulator Support Steel pin for carrier circuits with threads coated with rubber	WILLIAMS, Richard H.	Pin	The B. F. Goodrich Co.
		1944
U	2,352,151	June 20, 1944	Insulator CD 1030; Wireholder made of glass with detachable, interchangeable mounting pins	HOLMES, Minot K.	Wireholder	Owens-Illinois Glass 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

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