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Total of 27 patents found where: Class is '427';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1849
U	6,907	November 27, 1849	Improvement in Glazing Pottery-Ware Transparent and colored glaze for pottery and stone ware	FENTON, Christopher W.	Flint
		1871
U	114,911	May 16, 1871	Improvement in Galvanic Batteries Use of paraffin or paraffinic oil to coat surface of battery acid to prevent evaporation	BROOKS, David	Battery
		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
		1925
U	1,556,570	October 6, 1925	Impregnated Wood and Process of Treating Wood Treating wood pins and the like under high temperature with Montan wax and a solvent that penetrates the grain and protects it from weather and decay	COOLIDGE, Joseph R.	Pin	Montan, Inc.
		1927
U	1,621,016	March 15, 1927	Method of and Means for Coating Inner Surfaces of Hollow Bodies Manufacturing method of spraying gummy coating to the inside of the cement joint of an insulator	JACKSON, Ray P.	Manufacturing	Westinghouse Electric & Mfg. Co.
		1930
U	1,784,392	December 9, 1930	Manufacture of Insulators Suspension insulator with glazed sanded surfaces to improve strength of cap	ROWLAND, Davidge H.	Suspension	Locke Insulator Corp.
		1934
U	1,973,076	September 11, 1934	Insulator RFI: coat crown with gold, platinum, bismuth & semi-conductive area	HUNT, Marsden H.	RFI	Westinghouse Electric & Mfg. Co.
U	1,975,576	October 2, 1934	Method of Applying a Conducting Coating on Insulators RFI coating of carbon fused to the surface	HAWLEY, Kent A.	RFI	Locke Insulator Corp.
		1935
U	1,987,683	January 15, 1935	Insulator RFI: coat crown with copper glaze to prevent AM radio interference	HUNT, Marsden H. BARROW, George M.	RFI	Westinghouse Electric & Mfg. Co.
		1937
U	2,094,287	September 28, 1937	Method of Manufacturing Multipart Glass Articles Method to manufacture multiple glass objects (blocks, insulators, etc.)	ZIMMERMAN, Willard P. HOLMES, Minot K.	Method	Owens-Illinois Glass Co.
		1939
U	2,146,596	February 7, 1939	Rubber Insulating Compound and Method of Making the Same Rubber compound for electrical conductors	SCHWARTZ, Emil W. SAVAGE, Manuel H. SPARGO, Francis C.	Rubber	General Electric Co.
U	2,154,387	April 11, 1939	Electric Insulator RFI: coat crown with metallic glaze to prevent radio interference (advertised in Electrical World 8-12-1939)	SLEEMAN, Harold P.	RFI	The R. Thomas & Sons Co.
U	2,170,602	August 22, 1939	Method of Producing Glass Building Blocks Bonding agent applied to mortar bearing block sides	BAUER, John E.	OI	Owens-Illinois Glass Co.
		1940
U	2,224,853	December 17, 1940	Method of Manufacturing Ceramic of Vitreous Ware Manufacturing method to improve quality of porcelain during firing	AUSTIN, Arthur O.	Manufacturing	The Ohio Brass Co.
		1941
U	2,230,205	January 28, 1941	Process of Connecting a Metal Body to a Vitreous Ceramic Body Metallic coating to facilitate soldering metal parts onto the insulator	ROWLAND, Davidge H. CROSKEY, Carl D.	Miscellaneous	Locke Insulator Corp.
U	2,264,152	November 25, 1941	Method of Forming a Metallic Surface on Ceramic Bodies RFI metallic coating that strongly adheres to the insulator	ROWLAND, Davidge H.	RFI	Locke Insulator Corp.
		1942
U	2,274,955	March 3, 1942	High Tension Electric Insulator and Method of Coating Same RFI: antimony coated top	DYKSTRA, Laurence J. MEYER, Edwin M.	RFI	Victor Insulators, Inc.
U	2,281,173	April 28, 1942	Insulator and Method of Producing Conducting Coating Thereon RFI prevention using an inexpensive glaze coating	SANTOMIERI, Sebastian L.	RFI	Victor Insulators, Inc.
U	2,283,685	May 19, 1942	High Resistance Conducting Coating for Electric Insulators RFI coating to prevent radio interference	MCCREERY, George L. CAMPBELL, Van E.	RFI	The Ohio Brass Co.
		1943
U	2,331,041	October 5, 1943	Method of Surface Treating Glass Containers Treatment of interior surfaces of glass block	NOBLE, Burton A.	OI	Owens-Illinois Glass Co.
U	2,337,691	December 28, 1943	Method of Making High Strength Ceramic Surfaces Method of manufacturing insulators using porcelain ""sand"" with a lower coefficient of expansion than the insulator body to rough up the surface and provide a strong cement joint without reducing the effectiveness of the compression glaze (see 2,327,972)	STETTINIUS, Kenneth E. DEWEY, Benjamin F.	Manufacturing	Lapp Insulator Co., Inc.
		1944
U	2,357,550	September 5, 1944	Insulator RFI coating applied before firing the insulator	ROWLAND, Davidge H.	RFI	Locke Insulator Corp.
		1959
U	2,867,551	January 6, 1959	Apparatus and Method for Applying Conductive Coatings to Insulators Radio treatment process for CD 239	KOZAK, John	RFI	Owens-Illinois Glass Co.
		1960
U	2,953,483	September 20, 1960	Method and Apparatus for Applying Coatings to Selected Areas of Articles Radio treatment process for CD 239	TOROK, Julius J.	RFI	Owens-Illinois Glass Co.
		1963
U	3,093,508	June 11, 1963	Method of Coating Glass Silicone coated glass that can be used for insulators	WARTENBERG, Erwin W.	Glass Coating
		1971
U	3,589,986	June 29, 1971	Method of Fabricating a Glass Forming Apparatus Plating of molds with Chromium for glass blocks & TV faceplates	NULL, Carroll Thomas	OI	Owens-Illinois Glass Co.
		1972
U	3,658,583	April 25, 1972	Method for Producing Semi-Conducting Glaze Compositions for Electric Insulators RFI semi-conductive glaze formulas	OGAWA, Yutaka	RFI	NGK Insulators, Ltd.

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