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Total of 32 patents found where: Class is '264'; Subclass is 'DIG54';

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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	124,200	March 5, 1872	Improvement in Telegraph Insulators Earthenware insulator soaked in mix of wax and rosin then in petroleum	FARMER, Moses G.	Earthenware
		1892
U	476,813	June 14, 1892	Porcelain Insulator U-141, pin type insulator with cemented metal thimble. Patent was owned by Pass & Seymour.	PASS, James SEYMOUR, Albert P.	Insulator
		1897
U	589,256	August 31, 1897	Process of Making Insulating Material Composition insulator made of paper pulp saturated with sulfur	GRAY, John CASE, Charles H.	Composition
		1898
U	600,475	March 8, 1898	Electrical Insulator and Method of Making Same Multiple thin porcelain shells fused together with glaze, ""glaze-filling"" method, U-928 & U-928A. (see patent 601,195) (see patent gb1898-0006235) Patent was owned by the R. Thomas & Sons Co.	BOCH, John W.	Insulator
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.
		1902
U	702,660	June 17, 1902	Process of Making Insulators Glazewelding (Boch variation) with extra glaze to leave air space, biscuit fired, then glaze	LOCKE, Fred M.	Glazeweld
U	702,661	June 17, 1902	Insulator and Process of Manufacturing Same Glazewelding (Boch variation) vitrified shells, pour molten glaze, then cool	LOCKE, Fred M.	Glazeweld
		1907
U	868,122	October 15, 1907	Electric Insulator Multipart with glass skirt and two-piece head similar to Locke 25	POINAN, Francis J.	Multipart
		1909
U	941,032	November 23, 1909	Process of Manufacturing Insulators Press to mold and produce composition strain insulator	MCCARTHY, Louis	Press	The Macallen Co.
		1915
U	1,128,747	February 16, 1915	Method of Manufacturing Porcelain Insulators Manufacturing process for porcelain insulator firing unglazed, then filling porous porcelain with oxidizable oil and rendering the oil stable with ozone to form a coating to replace expense of firing on a glaze	BOEHM, Wilhelm	Manufacturing
U	1,164,739	December 21, 1915	Method of Making Insulating Devices Manufacturing technique to make long bushings with petticoats by stacking them on a fired core and fusing the petticoats to the core	MERSHON, Ralph D.	Manufacturing
		1916
U	1,170,287	February 1, 1916	Method of Making Insulators Suspension cementing method (high temp and humidity)	LAPP, John S.	Suspension	Locke Insulator Mfg. Co.
		1917
U	1,251,013	December 25, 1917	Insulator Joint Multipart without cement held by adjoining metal bands	GODDARD, Walter T.	Multipart
		1918
U	1,284,975	November 19, 1918	Sanded Insulator and Method of Making Same Multipart and suspension sanded joints (see 1,536,749)	AUSTIN, Arthur O.	Multipart	The Ohio Brass Co.
U	1,284,976	November 19, 1918	Insulator Multipart and suspension cemented metal part designs	AUSTIN, Arthur O.	Multipart	The Ohio Brass Co.
		1919
U	1,291,713	January 21, 1919	Separable Part Insulator Multipart (& suspension) with cemented, threaded metal shells screwed together	AUSTIN, Arthur O.	Multipart	The Ohio Brass Co.
		1920
U	1,360,352	November 30, 1920	Insulator Suspension sanded under cap and pin to improve cement adhesion	AUSTIN, Arthur O.	Suspension	The Ohio Brass Co.
U	1,360,896	November 30, 1920	Cemented Insulator Multipart cementing procedure evacuate air from cement, coat with tar	CREIGHTON, Elmer	Multipart	General Electric Co.
		1922
U	1,426,421	August 22, 1922	Condenser Cemented Sectional Insulator Multipart using metallic cement and metal sheath covering skirts	SONNEBORN, Sol S.	Multipart	Hopewell Insulation & Mfg. Co.
		1923
U	1,456,960	May 29, 1923	Joint for Articles of Ceramic and Similar Materials and Method of Producing Same Multipart joined by sand, glaze-welding and/or differential shrinkage	AUSTIN, Arthur O.	Multipart	The Ohio Brass Co.
		1924
U	1,489,690	April 8, 1924	Insulator and Method of Assembling the Same Suspension with sanded joints & soft coating for better adhesion of cement	AUSTIN, Arthur O.	Suspension	The Ohio Brass Co.
U	1,501,107	July 15, 1924	Method of Connecting Insulator Parts Method of making a cement impervious to water	GOUVERNEUR, Minor F. H.	Cement	Locke Insulator Corp.
		1925
U	1,544,148	June 30, 1925	Method of Connecting Insulators Multipart, method of cementing sections with solder	GOUVERNEUR, Minor F. H.	Multipart	Locke Insulator Corp.
U	1,556,029	October 6, 1925	Method of Connecting Insulator Units Suspension, card used to keep cement off top surface around cap	REAGAN, Frank H.	Suspension	Locke Insulator Corp.
U	1,558,498	October 27, 1925	Method of Making Insulators Multipart, cementing of sections (see Pinco catalog page 3)	PECK, John M. BENNETT, Cornelius Van Dyke RYAN, James W.	Multipart	The Porcelain Insulator Corp.
U	1,558,499	October 27, 1925	Insulator Construction Multipart cementing of sections using resilient cement and non-resilient cement	PECK, John M.	Multipart	The Porcelain Insulator Corp.
		1926
U	1,590,457	June 29, 1926	Method of Testing Insulators Manufacturing method of cutting a plastic insulator body to inspect it internally then put the parts back together before drying and firing	VAUPEL, Albert	Manufacturing	Westinghouse Electric & Mfg. Co.
U	1,609,598	December 7, 1926	Process of Assembling Insulator Parts Cementing method in that the cement is cured in a bath of heated water	AUSTIN, Arthur O.	Cement	The Ohio Brass Co.
		1927
U	1,647,695	November 1, 1927	Method of Assembling Insulators Manufacturing method of using adhesive to hold shells together before injecting cement and sealing edges of the cured cement joint	HAWLEY, Kent Allen	Manufacturing	Locke Insulator Corp.
		1928
U	1,672,059	June 5, 1928	Insulator Multipart cement joint with alternating elastic bands & coated surfaces	COOK, William S.	Multipart
		1930
U	1,742,625	January 7, 1930	Process of Uniting by Sealing the Insulating Parts of High Tension Insulators Cement of rubber used to cement multipart insulator	WECKERLE, Ferdinand	Cement	Studiengesellschaft Fuer Wirtschaft U. Industrie, M. B. H.

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