Search the Insulator Patent Reference Library:

Total of 102 patents found where: Class is '174'; Subclass is '168';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1855
U	13,162	July 3, 1855	Improvement in Attachments for Lighting Rods Lightning rod insulator holder for glass insulator (Salamander)	DWYER, Robert D.	Lightning Rod Insulator
		1859
U	24,110	May 24, 1859	Improved Device for Securing Lightning Rods Lightning rod insulator (glass) with spring clip to hold rod	ENGGREN, John A.	Lightning Rod Insulator
		1867
U	66,054	June 25, 1867	Improvement in Lightning Rod Insulators Lightning rod insulator (glass) with tie wire to hold conductor	STEBBINS, Darius	Lightning Rod Insulator	1/2 to E. Morse
		1868
U	75,815	March 24, 1868	Improvement in Insulators for Telegraphs Earthenware insulator, cemented galvanized pin coated with paraffin (Brown p. 57)	VARLEY, Cromwell F.	Earthenware
		1870
U	99,873	February 15, 1870	Improvement in Insulator for Telegraphs Self-tying via cam devise to hold wire with cap covering	FINLEY, Stephen L.	Self-tying Miscellaneous	1/2 to Marshall Lefferts
		1879
U	217,427	July 8, 1879	Improvement in Telegraph Insulators Self-tying screw top	TAYLOR, Burnley	Self-tying Screw Top
		1883
U	274,821	March 27, 1883	Electric Wire Insulator Self-tying miscellaneous	REIFF, William H.	Self-tying Miscellaneous	1/3 to Andrew Siep, Jr.
		1884
U	296,485	April 8, 1884	Means for Supporting and Insulating Electrical Wires Wedge block for side of pole or driven in hole in crossarm	TRINGHAM, John Watson	Wedge
U	307,916	November 11, 1884	Insulator Blocks held by mortised metal tube to hold wire	CLEVELAND, John S. KENT, George F.	Block
U	310,059	December 30, 1884	Insulator Metal plate to hold wire on side of insulator	JAMES, Hamilton L.	Metal
		1886
U	340,734	April 27, 1886	Electric Wire Insulator Tie wire embedded in insulator	SEABOLDT, Bert	Tie Wire	3/4 to George Goss, Samuel Gilson, Andrew Horner
U	346,971	August 10, 1886	Telegraph Insulator Spout each end of groove for rain; barbed top groove; hole for tie wire	WILSON, John	Spout
U	346,972	August 10, 1886	Telegraph Insulator Self-tying via bolt in crown	WILSON, John	Self-tying Miscellaneous
U	347,943	August 24, 1886	Insulator for Electric Wires Self-tying with metal cam lever	LEONARDSON, John M.	Self-tying Miscellaneous
U	349,022	September 14, 1886	Telegraph Wire and Insulator Fastening Self-tying via a spiral of wire that fits in the top groove or notch holding the line wire within	WILSON, John	Self-tying Miscellaneous
		1888
U	383,734	May 29, 1888	Insulator for Electrical Wires Self-tying slot top & metal keeper	KEYES, Frank E.	Self-tying Slot Top
		1889
U	406,041	July 2, 1889	Insulator for Electric Wires Tie wire cast into insulator	GILL, James C.	Tie Wire	Hemingray Glass Co.
		1891
U	445,969	February 10, 1891	Electric Insulator Round insulator mounted on top of crossarm with two screws and surrounded with a rubber tube. Conductor is supported on top and secured with a metal clip.	BRANCH, James R.	Insulator
U	448,956	March 24, 1891	Electric Insulator Self-tying via metal band screwed on top	GRAHAM, George H. GANNANE, Thomas	Self-tying Miscellaneous
		1893
U	497,515	May 16, 1893	Insulator Cleat with metal clip to hold wire	BRADY, Thomas H.	Cleat
U	504,059	August 29, 1893	Insulator CD 141.6, bail type clamping lever to hold line wire	BLACKBURN, George W.	Insulator
		1894
U	515,448	February 27, 1894	Fixing Electric Conducting Wires to Insulators Supporting Same Self-tying via hole through insulator crown & metal clamp	SCHOMBURG, Rudolf	Self-tying Miscellaneous
U	524,850	August 21, 1894	Insulator Strain and hanger block	HAMMOND, Charles N.	Strain
U	526,472	September 25, 1894	Insulator for Electric Conductors Knob - self-tying	WEBSTER, George	Knob	1/2 to Arthur Ingraham & Samuel Brown
		1895
U	536,684	April 2, 1895	Self-Locking Cleat for Electric Wiring Cleat - self-tying	CREAGER, Frank O.	Cleat
U	539,040	May 14, 1895	Insulator Cleat (ceiling) with metal clip (Electrical Engineer 1-30-1895 and 8-14-1895) It was referred to as the ""Simplest"" cleat and the Ideal cleat.	DESISLES, Leonard H.	Cleat	1/2 to Frederick Palmer
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
U	546,383	September 17, 1895	Insulator Self-tying with crown hole, slot & spacer	GERSTENLAUER, Daniel M.	Self-tying Miscellaneous
U	546,585	September 17, 1895	Insulator Self-tying insulator (NOTI Insulator Co.)	DIBB, William VICKERS, Albert	Self-tying Miscellaneous
		1896
U	562,528	June 23, 1896	Wire Holder Odd wireholder with two fins or ears that hold the wire	HAKANSSON, Louis M.	Wireholder
		1897
U	574,828	January 5, 1897	Insulator Hanger insulator for end of pole or other support	SMOCK, Benjamin D.	Hanger
U	586,372	July 13, 1897	Insulator Self-tying slot top with perpendicular hole for retainer	STEINBERG, JR., Henry W.	Self-tying Slot Top
U	587,273	July 27, 1897	Insulator Self-tying slot top with perpendicular hole for retainer. Also patents England: 16,087 (1-24-1896); Germany: 86,014 (4-25-1895)	RUDOLF, Heinrich	Self-tying Slot Top
		1901
U	671,876	April 9, 1901	Self-Locking Insulator Self-tying screw top	BEARDSLEY, Willard P.	Self-tying Screw Top
		1902
U	700,570	May 20, 1902	Insulator Supporting Arm Pin assembly for crossarm	SHARPE, John E.	Pin	1/2 to Newton Bartle
U	711,629	October 21, 1902	Insulator Self-tying slot top with wedge keeper	HOBERT, Clayton	Self-tying Slot Top	7/10 to S. Miller & E. Kerper
		1903
U	728,442	May 19, 1903	Electric Insulator Self-tying slot top with wedge keeper plug	BURKE, Edward J.	Self-tying Slot Top	1/2 to Cummings & Anderson
U	744,631	November 17, 1903	Insulator CD 139 combination safety and CD 181.5	SCHOENTHALER, Edward F.	Insulator	2/3 to W. Parker & J. Finn
U	746,671	December 15, 1903	Insulator Self-tying via pivoted locking dogs	CARTER, Taylor	Self-tying Miscellaneous
		1904
U	770,962	September 27, 1904	Insulator Self-tying groove top and screw wire clamp	GILL, Jacob F.	Self-tying Miscellaneous
		1905
U	798,235	August 29, 1905	Insulator CD 141.7	TWIGGS, William R.	Insulator
		1906
U	821,401	May 22, 1906	Insulator Self-tying slot top	CARTER, Taylor	Self-tying Slot Top
		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	844,796	February 19, 1907	Insulating Wire Holder Self-tying via spiral slot	HATCHETT, Andrew	Self-tying Miscellaneous	1/3 to Battiste, 1/3 to Porter
U	849,896	April 9, 1907	Insulator Knob with cam device to hold wire	GRIFFITH, Charles	Knob
U	866,596	September 17, 1907	Insulator Self-tying via cylindrical slot with screw threads	MORTON, William A.	Self-tying Miscellaneous
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	881,967	March 17, 1908	Electric Insulator U-185	SLUSSER, Charles R.	Insulator
U	884,142	April 7, 1908	Insulator Cylindrical insulator with spiraling ribs to screw insulator into crossarm, center groove to hold line wire, external grooves to carry water away and drip points or serrations to allow water to drip down	FOREMAN, Ernest Jay	Crossarm
U	887,107	May 12, 1908	Wire Fastener for Insulators Wire fastener for crown wire groove of insulator	LOCKE, Fred M.	Wire
U	894,616	July 28, 1908	Insulator and Wire Clamp U-401 and U-401A, insulator & wire clamp	FAY, John L.	Insulator
U	900,917	October 13, 1908	Insulator Self-tying miscellaneous	DOBSON, Grant	Self-tying Miscellaneous	1/2 to Richard Ohloff
U	907,834	December 29, 1908	Insulator Slack wire holder with nail spike	MARSHALL, George B.	Slack Wire
		1909
U	918,127	April 13, 1909	Insulator miscellaneous - specially shaped crown slot to hold wire	CLARK, Walter G.	Miscellaneous
U	922,477	May 25, 1909	Electric Line Insulator Self-tying with side grooves	HENRY, Robert	Self-tying Miscellaneous
U	929,878	August 3, 1909	Insulator U-183	RANSON, Joseph W.	Insulator
U	931,507	August 17, 1909	Insulator for Electric Wires Self-tying miscellaneous	SILER, Aaron V.	Self-tying Miscellaneous	1/2 to Andrew Siler
		1910
U	967,649	August 16, 1910	Means of Visibly Indicating Faulty Insulators Colored flammable cap that fits over the top of an insulator that will burn away during an arc indicating that the insulator may be damaged	LINKE, Charles	Miscellaneous
		1911
U	983,039	January 31, 1911	Insulator Protector Protective shield	FIELD, John E.	Protective Shield
U	1,009,810	November 28, 1911	Insulator Self-tying top groove with metal clip	WATKINS, Thomas H.	Self-tying Miscellaneous
		1912
U	1,020,880	March 19, 1912	Insulator Self-tying screw top	BOURKE, Alexander M.	Self-tying Screw Top
U	1,028,534	June 4, 1912	Insulator Miscellaneous	BRADY, Charles C.	Miscellaneous
U	1,032,153	July 9, 1912	Insulator Self-tying miscellaneous	NEMES, Mike	Self-tying Miscellaneous
U	1,035,415	August 13, 1912	Insulator Self-tying miscellaneous	BROWN, Robert L. BROWN, Gus	Self-tying Miscellaneous
U	1,045,353	November 26, 1912	Insulator for Automatically Securing Conducting Wires Self-tying miscellaneous non-pin type slot-top	ZACHHUBER, Franz	Self-tying Miscellaneous
		1914
U	1,090,686	March 17, 1914	Insulator Clamp Self-tying via clamp	COOK, William A.	Self-tying Miscellaneous
U	1,107,111	August 11, 1914	Insulator U-186	PURKEY, Benjamin S.	Insulator
U	1,116,631	November 10, 1914	Insulator Self-tying slot top for slack wire use	SCHISLER, Frank J.	Self-tying Slot Top
		1916
U	1,169,011	January 18, 1916	Insulator Glass insulator with internal reinforcement for strength	COOK, Harry A.	Glass
U	1,172,963	February 22, 1916	Insulator Self-tying miscellaneous using odd projections on top and wire clamping device	ENGELHARDT, August J.	Self-tying Miscellaneous
U	1,176,618	March 21, 1916	Insulator Self-tying	SWEARINGEN, Walter E.	Self-tying Miscellaneous
U	1,188,599	June 27, 1916	Self-Tying Insulator Cleat - self-tying	YOUMANS, Salem L. MCLAUGHLIN, James A.	Cleat
U	1,206,846	December 5, 1916	Insulator Hole in crown with mercury receiving ends of line wires & clamp	HOPKINS, Roy S.	Hole
U	1,208,874	December 19, 1916	Insulator Self-tying	WILSON, William E.	Self-tying Miscellaneous
		1917
U	1,213,002	January 16, 1917	Insulator Mine insulator	PIERCE, Frank C.	Mine
U	1,221,893	April 10, 1917	Safety Repair Device for High Voltage Transmission Lines Clamp to hold conductor to insulator while repairs are made	NEELEY, George S.	Clamp	1/2 to Thomas O. Moloney
U	1,241,929	October 2, 1917	Insulator Self-tying slot top and clip	DADE, William A. MORGAN, Richard E.	Self-tying Slot Top
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	1,260,160	March 19, 1918	Insulator Self-tying	DISBENNET, Charles	Self-tying Miscellaneous
		1919
U	1,291,139	January 14, 1919	Insulator Self-tying slot top with keeper nail	REESE, Rudolph R.	Self-tying Slot Top
U	1,292,451	January 28, 1919	Line Wire Insulator miscellaneous	FORT, Louis	Miscellaneous
		1920
U	1,361,948	December 14, 1920	Insulator Pin with spring wire extending beyond edge of bottom pin hole	WIDMYER, James L.	Pin
		1923
U	1,475,722	November 27, 1923	Insulator for Telephone and High Tension Conductors Self-tying slot top and clip	ROMANDY, Joseph	Self-tying Slot Top
		1924
U	1,509,645	September 23, 1924	Insulator Self-tying	FOSS, Marvin J.	Self-tying Miscellaneous
U	1,516,884	November 25, 1924	Wireless Tie Insulator Self-tying via side fingers	FREDERICK, Harry A.	Self-tying Miscellaneous
		1928
U	1,664,172	March 27, 1928	Insulator Knob with metal hook to hold wire	HOLLER, John R.	Knob
U	1,675,589	July 3, 1928	Insulator Self-tying slot top via separate piece (similar to Ransom patent)	BABINEAU, Oliver D.	Self-tying Slot Top
		1929
U	1,703,853	February 26, 1929	Dry-Spot Insulator CD 182, U-173, U-174 & U-175 dry-spot	GOULD, Rufus	Insulator	1/2 to Postal Telegraph Cable Co.
U	1,733,067	October 22, 1929	Insulator Multipart with metal cap to prevent damage due to temp changes	MARVIN, Richard H.	Multipart	The R. Thomas & Sons Co.
		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	1,829,354	October 27, 1931	Insulator Self-tying clamp-top	HOUDE, Victor Frederick	Self-tying Miscellaneous	1/2 to Ferdinand La Fleche
		1937
U	2,092,515	September 7, 1937	Insulator Circular line spacer for telephone wires composed of a disk with holes for each wire	JERVEY, William T.	Spacer	Bell Telephone Laboratories, Inc.
		1939
U	2,163,954	June 27, 1939	Electric Fence Electric fence insulator with bail wire to hold the wire in place.	LUCAS, John A.	Electric Fence	Prime Manufacturing Co.
		1940
U	2,198,839	April 30, 1940	Conductor Support Little bracket with insulator crown to hold low voltage wire attached to a wood pole (see 2,022,386)	PITTMAN, Ralph R. WALSH, Carroll H.	Miscellaneous
		1942
U	2,304,204	December 8, 1942	Electrical Insulator Rubber insulator for wire fence	RATZMAN, Borah B.	Rubber
U	2,305,688	December 22, 1942	Transposition Block Transposition block (flat) for short wave radio antenna	GODDARD, DeWitt Rugg	Transposition	Radio Corporation of America
		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.
		1950
U	2,510,182	June 6, 1950	Wire Support Guy strain with preformed attachment and line wire is brought in through the center and secured by wrapping around the external grooved ribs.	KLINGEL, Edward L.	Strain
		1955
U	2,709,058	May 24, 1955	Insulator Support Rack Secondary rack bracket with side tabs to receive screws or bolts.	VOSE, Fred C. BURNIE, Glen RUTH, Bernard W.	Bracket/secondary Rack	General Electric Co.
		1957
U	2,816,155	December 10, 1957	Insulator Clamp Tie wire replacement using a preformed adjustable sheet metal loop	BARNES, Robert I.	Tie Wire

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