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Total of 29 patents found where: Category is 'RFI';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1929
U	1,735,829	November 12, 1929	Means and Method for Controlling Surface Resistance of Insulators RFI coating on suspension insulators with graded or reduced thickness away from the center of the disk	AUSTIN, Arthur O.	RFI	The Ohio Brass Co.
		1932
U	1,852,093	April 5, 1932	Article of Manufacture and Process of Making It RFI metallic coating and process of applying it to porcelain insulators	SMEDE, Lloyd SHAND, Errol B.	RFI	Westinghouse Electric & Mfg. Co.
U	1,872,557	August 16, 1932	Article of Manufacture RFI metal coating around the crown of an insulator so the tie-wire and conductor can be soldered to the coating	BARROW, George M.	RFI	Westinghouse Electric & Mfg. Co.
U	1,889,244	November 29, 1932	Noninterferring Insulator RFI treatment for new or existing insulators by attaching a metal crown	HAWLEY, Kent A.	RFI	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.
U	1,997,666	April 16, 1935	Insulator RFI multipart design with metal cap over crown with extension over coated area of top shell and metallic coating on each shell below cement joint	WHISLER, George M.	RFI	Westinghouse Electric & Mfg. Co.
U	1,997,688	April 16, 1935	Insulator RFI: coat crown with copper glaze to prevent radio interference	HUNT, Marsden H. BARROW, George M.	RFI	Westinghouse Electric & Mfg. Co.
		1937
U	2,081,508	May 25, 1937	Insulator Having High Surface Resistance and Method of Making It RFI: carnival coating (stain) to increase surface resistance and for marker insulator	SHAVER, William W.	RFI	Corning Glass Works
		1938
U	2,118,795	May 24, 1938	Insulator RFI: tin iridized coating to reduce water adherence, radio interference, and reflect sun	LITTLETON, Jesse T.	RFI	Corning Glass Works
U	2,133,768	October 18, 1938	Insulator RFI: non-conducting iron iridized coating over tin iridized coating (see 2,118,795)	HOSTETTER, John C. LITTLETON, Jesse T.	RFI	Corning Glass Works
		1939
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.
		1941
U	2,239,809	April 29, 1941	Insulator Suspension insulator and method of applying RFI coating	BURLESON, Wade H.	RFI	The Ohio Brass Co.
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	2,333,557	November 2, 1943	Coating of Insulators Machine for applying a RFI coating on insulators (see 1,973,076) (see 1,997,686) (see 1,997,688) (see 2,422,537)	FISCHER, Eugene H.	RFI	Westinghouse Electric & Mfg. Co.
		1944
U	2,342,307	February 22, 1944	Spraying Machine Machine for spraying on RFI coatings	SMITH, William A.	RFI	The Ohio Brass Co.
U	2,357,550	September 5, 1944	Insulator RFI coating applied before firing the insulator	ROWLAND, Davidge H.	RFI	Locke Insulator Corp.
		1951
U	2,576,723	November 27, 1951	Electric Insulator Having Potential Drop Controlling Means RFI design using two conductive coatings of different temperature expansion	PERRINS, George	RFI	Bullers Limited
		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.
		1968
U	3,368,026	February 6, 1968	Electrical Insulator Having Improved Surface Electrical Stress Distribution RFI prevention using two glaze coatings on suspension insulators	VINCE, Patrick Michael	RFI	Doulton & Co., Ltd.
U	3,389,214	June 18, 1968	Coated Insulator Suspension with RFI coating composed of semiconducting ceramic of silicon carbide	SMOTHERS, William J.	RFI	The Ohio Brass 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.
		1974
U	3,836,705	September 17, 1974	Electrical Insulator and Conducting Tar Therefore RFI prevention using conductive tar to coat insulator and metal surfaces for cementing	ROSENBLATT, Gordon	RFI	Canadian Porcelain Co.
		1998
U	5,796,048	August 18, 1998	Insulator having Conductive Surface Coating to Prevent Corona Discharge RFI coating	SUZUKI, Yoshihiro KUTSUNA, Eiji	RFI	NGK Insulators, Ltd.

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