Search the Insulator Patent Reference Library:

Total of 56 patents found where: Class is '411';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1877
U	186,503	January 23, 1877	Improvement in Lightning Rod Connector Clips Coupling or connector clip composed of flat metal bent around the adjoining rod with external threads formed on the end so the rod can be screwed onto the clip	SHOOK, Albert	Lightning Rod Coupling
		1880
U	234,523	November 16, 1880	Telegraph Insulator Slotted circular insulator held by split metal screw bracket	BIGEON, Charles	Slotted
		1882
U	258,061	May 16, 1882	Screw for Fastening Telegraph Wires Metal screw with self-tying end for holding a telegraph wire.	HAVILAND, Andrew J.	Screw
		1883
U	279,274	June 12, 1883	Binding Post Knob with grooves to wrap line wire around	PATTERSON, William R.	Knob	Western Electric Co.
		1884
U	301,446	July 1, 1884	Insulator for Electric Wires Hook with glazed covering (see 293,242 and 294,384)	HALE, Albert W.	Hook
		1885
U	321,646	July 7, 1885	Electric Wire Insulator Pin with spars to fit in threaded pin hole	SCHOONMAKER, Edward T.	Pin	1/2 to John E. Smith
		1887
U	360,354	March 29, 1887	Insulator Acoustic insulator to reduce vibration of telephone wires in acoustic or mechanical telephones	LOCKE, Willie F.	Acoustic	1/2 to John E. Robertson
		1889
U	401,343	April 16, 1889	Electric Wire Nail U-shaped wire nail that is round at the top to protect the wooden covering over the wire. (see article 12125)	GILDEMEYER, Charles A.	Nail	1/2 to Madison Rush
		1890
U	419,642	January 21, 1890	Insulator for Electric Wires Split ring with split ring holder and lag screw	CORNOG, Isaac P.	Split
U	441,849	December 2, 1890	Electric Line Hook Hook made of iron to secure line wire with threaded end to screw in crossarm	LOCKE, Fred M. LAPP, John	Hook	1/3 to Theodore Norton
		1894
U	522,428	July 3, 1894	Insulator Wall tube secured with a clip	MACE, Romaine	Wall Tube	The Interior Conduit & Insulation Co.
		1896
U	573,101	December 15, 1896	Wall Insulator Slack wire ring driven into mortar between bricks	O'NEILL, James J.	Slack Wire
		1898
U	607,315	July 12, 1898	Insulator Wall tube of two split pieces [Scientific American 8-6-1898]	WINGARD, Charles L.	Wall Tube	1/2 to Luella Wingard
		1901
U	679,308	July 30, 1901	Insulator Slack wire knob, bracket and suspension clip	GEISENHONER, Henry	Slack Wire	General Electric Co.
U	684,909	October 22, 1901	Insulating Bushing Bushing	COLE, John A.	Bushing
		1904
U	773,733	November 1, 1904	Insulator Wall tube with ribs and metal clip	GREENE, Leon W.	Wall Tube
U	775,812	November 22, 1904	Insulator Support Pin design made from sheet metal with partial threads on one side	FAIRBANKS, Ernest Hayward	Pin
		1906
U	814,613	March 6, 1906	Insulator Pin Pin (metal) bracket using split sheet metal threads	MACKEAN, Frank	Pin
U	830,501	September 11, 1906	Protecting Bushing for Electric Circuit Wires Bushing with screw threads	GOEHST, John H.	Bushing	Federal Electric Co.
U	830,572	September 11, 1906	Clamp for Electrical Conductors Clamp to connect the ends of conductors (also Canadian patent 104766, April 16, 1907)	CUTTER, Scott C.	Clamp
		1908
U	880,121	February 25, 1908	Electrical Insulator Knob wiring insulator composed of two or more discs to secure individual wires from each other and the supporting nail or screw.	BOLTON, Daniel G.	Knob
U	907,834	December 29, 1908	Insulator Slack wire holder with nail spike	MARSHALL, George B.	Slack Wire
		1909
U	912,364	February 16, 1909	Insulator for Electrically Charges Wires Tube for routing wires through wood with spring clip attached to the outside of the tube to prevent the tube from slipping out.	CONRAD, Stonewall Jackson	Wall Tube
		1912
U	1,013,250	January 2, 1912	Insulator Pin Pin for mine insulator comprised of split sheet metal	WILSON, Walter J.	Pin
U	1,014,934	January 16, 1912	Insulator Knob Knob	BAKER, George	Knob
U	1,022,121	April 2, 1912	Insulator Pin Pin, metal with barbs to hold it in hole in crossarm	BOYLAND, Clarence Joseph	Pin
U	1,026,711	May 21, 1912	Sheet Metal Insulator Pin Pin, metal composed of three flat strips	SHOVER, Barton R.	Pin
U	1,045,536	November 26, 1912	Insulator Pin Pin (metal) with elastic washer under threads to firmly hold insulator, prevent breakage	ETTE, Charles G.	Pin	Ette Investment Co.
		1913
U	1,056,392	March 18, 1913	Insulator Bushing	BARR, Carl A. KOREN, Jerome H.	Bushing
U	1,080,257	December 2, 1913	Insulator Wall tube with metal clip	BRUCHSALER, Karl	Wall Tube
		1914
U	1,095,860	May 5, 1914	Insulator Holder Pin composed of metal wire	HEFFNER, Herman C.	Pin
		1916
U	1,201,295	October 17, 1916	Insulator Support Pin, cast metal with lag screw	HENDEE, Lem E.	Pin
U	1,202,419	October 24, 1916	Insulator Supporting Pin Pin, metal with bolting bracket and spring for threads	PEIRCE, JR., Charles L.	Pin	1/2 to Hubbard & Co.
		1917
U	1,212,394	January 16, 1917	Insulator Support Bracket, sheet metal U-shaped with spring clip to secure insulator	PEIRCE, JR., Charles L.	Bracket	1/2 to Hubbard & Co.
		1918
U	1,271,596	July 9, 1918	Insulator Support Bracket for knobs	MAYER, Walter S.	Bracket	Electric Service Supplies Co.
		1919
U	1,315,998	September 16, 1919	Insulator Support Thimble Thimble with standard external threads pressed out of sheet metal and attached to a steel pin	SOUTHGATE, George T.	Thimble
		1921
U	1,385,638	July 26, 1921	Supporting Bracket Steel pin with lag screw and spring for threads	MILLER, Charles E.	Pin
		1922
U	1,427,953	September 5, 1922	Attaching Device Knob	HARRISON, Arthur W.	Knob	Porcelain Appliance Corp.
		1923
U	1,458,811	June 12, 1923	Insulator Connector Link for Hewlett suspension disk (see 1,633,399)	ECKERT, Grandon E.	Suspension	The R. Thomas & Sons Co.
		1924
U	1,487,355	March 18, 1924	Drawer Knob Glass drawer knob with screw threads for screwing into the drawer	OVERMYER, Charles G.	Drawer Knob
U	1,489,809	April 8, 1924	Insulator Suspension with ribbed sheet metal in pin and cap for better adhesion of cement	AUSTIN, Arthur O.	Suspension	The Ohio Brass Co.
		1927
U	1,633,399	June 21, 1927	Insulator Fitting Link for Hewlett suspension disk (see 1,458,811)	ECKERT, Grandon E.	Suspension	The R. Thomas & Sons Co.
		1928
U	1,691,964	November 20, 1928	Insulator Locking Device Pin with locking device to fit in threads to secure insulator	DICKEY, Ray S. CARNAHAN, Paul A.	Pin
		1929
U	1,738,188	December 3, 1929	Insulating Support Suspension cap, pin and connector	LANYON, Samuel Herbert	Suspension	Lapp Insulator Co.
		1930
U	1,750,769	March 18, 1930	Insulator Pin Steel pin with rolled threads and support on top of crossarm	AUSTIN, Arthur O.	Pin	The Ohio Brass Co.
U	1,750,770	March 18, 1930	Insulator Pin Steel pin with supporting base that fits over top and edge of wooden crossarm	AUSTIN, Arthur O.	Pin	The Ohio Brass Co.
		1931
U	1,819,380	August 18, 1931	Insulator Connection Suspension insulator cap and pin that can be locked in securely	OSBORNE, David H.	Suspension	Locke Insulator Corp.
		1932
U	1,864,300	June 21, 1932	Anchor Device Metal attachment device for wireholders	FORREST, Elbert E.	Wireholder	Line Material Co
		1933
U	1,912,007	May 30, 1933	Insulator Pin Steel pin and externally threaded steel cone support securely mounted to the crossarm	PLIMPTON, Bentley A. HAWLEY, Kent A.	Pin	Locke Insulator Corp.
		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.
		1937
U	2,082,566	June 1, 1937	Connector Steel connector for strain, suspensions, and other insulators	BERNDT, Arthur A.	Connector	Electroline Corp.
		1938
U	2,139,332	December 6, 1938	Wire Holder Wireholder with lag screw	PITTMAN, Ralph R. WALSH, Carroll H.	Wireholder
		1940
U	2,213,425	September 3, 1940	Insulator Fastener Knob and bracket pin	YOUNG, Harry M.	Knob	Western Wire Products Co.
U	2,224,361	December 10, 1940	Insulator Wireholder with lag screw	SEELYE, Howard P.	Wireholder
		1941
U	2,237,717	April 8, 1941	Insulator Structure Wireholder with multiple grooves and lag screw	STEWART, Lory B. STEWART, Alvin J.	Wireholder	1/3 to Karl Thielscher
		1952
U	2,609,418	September 2, 1952	Adjustably Mounted Insulator Assembly Electric fence insulator with hexagon head used with metal mounting bracket (see patent 2,756,958)	BINNS, Jack N. DUGLE, Thomas E. ALT, Alvin F.	Electric Fence

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