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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '361') AND (category.subclass = '132') ORDER BY date ASC, patent, type

Total of 30 patents found where: Class is '361'; Subclass is '132';

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T / S Patent Date Description Patentee Category Assigned To
 1880
U 224,580 February 17, 1880 Induced Current Guard for Electrical Conductors
Pre-transposition technique to eliminate induced current on telephone and telegraph wires		 CHINNOCK, Charles E.
 Transposition  
 1882
U 262,210 August 8, 1882 Combined Insulator, Lightning arrester, and Connector
Combined insulator, lightning arrestor and connector		 ECKERT, William
ECKERT, Edward
SEELY, John
 Lightning Arrestor  
 1883
U 280,324 June 26, 1883 Combined Insulator and Lightning arrester
Combined insulator and lightning arrestor		 NOBLE, John E.
 Lightning Arrestor 1/6 to Charles J. Leming
U 287,092 October 23, 1883 Mechanism for Preventing Induced Currents in Telephone Lines
Pre-transposition technique to eliminate induced current on telephone and telegraph wires		 BRENNAN, James W.
ROUSSEAU, Necter
 Transposition  
 1884
U 297,683 April 29, 1884 Telephone Line
Insulator and pin coated with waterproof compound		 DOOLITTLE, Thomas B.
 Miscellaneous  
 1896
U Specimen known 573,092 December 15, 1896 Insulator
Insulator of two materials combined		 LOCKE, Fred M.
 Insulator  
 1904
U 761,814 June 7, 1904 Combined Insulator and Fuse Box
Combined insulator and fuse box (see CJ & Brown's Unique p. 67)		 BEARSE, Aaron
 Combined Ins  
 1908
U Specimen known 880,203 February 25, 1908 Insulator
Suspension insulator with petticoat		 DUNCAN, John D. E.
 Suspension  
U 887,336 May 12, 1908 Electric Insulator
Radio antenna strain insulator made weatherproof with a metal cover.		 MIETH, Herman
 Radio Antenna  
 1910
U Specimen known 966,583 August 9, 1910 Insulator Protecting Apparatus
Multipart protected by arcing ring		 NICHOLSON, Lloyd C.
 Multipart  
U Specimen known 966,584 August 9, 1910 Protecting Apparatus for Insulators
Suspension protected by arcing ring		 NICHOLSON, Lloyd C.
 Suspension  
 1911
U 1,001,137 August 22, 1911 Insulator Protector
Arcing device attached to top and bottom of insulator		 GODDARD, Walter T.
 Arcing Locke Insulator Mfg. Co.
U 1,010,181 November 28, 1911 Electric Cable Protector
Protective shield mounted on top of the insulator to support the conductor.		 SANDFORD, JR., Joseph Addison
 Protective Shield The R. Thomas & Sons Co.
 1912
U 1,015,224 January 16, 1912 Insulator
Suspension insulator of insulating rope, hoods, and arcing rods. [This looks very close to the handful of glass suspension insulators found in 2002 in northern CA by Paul Greaves and Mike Spadafora. The glass was most probably made by Hemingray. No markings were found.]		 ALSBERG, Julius
 Suspension  
 1913
U 1,055,322 March 11, 1913 Insulator
Holes (2) through insulator to pin allows lightning to pass to pin & ground		 DE LONG, Harry A.
 Hole  
U 1,069,782 August 12, 1913 Electric Insulator
Multipart cable clamp using metal crown cap		 HILLIARD, John D.
 Multipart  
 1914
U 1,116,303 November 3, 1914 Arc Extinguisher
Use of explosive to break the arcing around a multipart insulator (see 1,127,043)		 LOCKE, Fred M.
 Transmission  
 1915
U 1,128,424 February 16, 1915 Insulator
Suspension multipart insulator fitted with arcing horns		 DUNCAN, John D. E.
 Suspension  
U 1,156,442 October 12, 1915 Insulator
Electrose suspension with U-bolt connectors, arcing hood over the top and arcing ring below the insulator		 STEINBERGER, Louis
 Electrose  
U 1,166,391 December 28, 1915 Insulator
Disk type strain with petticoats		 STEINBERGER, Louis
 Electrose  
U 1,166,393 December 28, 1915 Insulator
Electrose high tension pintype insulator		 STEINBERGER, Louis
 Electrose  
 1917
U Specimen known 1,233,296 July 17, 1917 High Tension Insulator
Suspension disk with petticoats and metal cap with projecting flange		 AUSTIN, Arthur O.
 Suspension The Ohio Brass Co.
 1918
U 1,283,651 November 5, 1918 Lightning Arrester
Lightning arrester with hole through top of insulator similar to U-70.		 BUCHANAN, Sutton R.
 Lightning Arrester/U-70  
 1923
U 1,449,694 March 27, 1923 Protective Device
Protective device to prevent arcing		 PEEK, JR., Frank W.
 Miscellaneous General Electric Co.
 1925
U 1,521,743 January 6, 1925 Insulator
Suspension arcing horn system and insulator (see 1,552,664 and 1,783,271)		 AUSTIN, Arthur O.
 Suspension The Ohio Brass Co.
U Specimen known 1,552,664 September 8, 1925 Insulator
Suspension arcing horn insulator (see 1,521,743 and 1,783,271)		 AUSTIN, Arthur O.
 Suspension The Ohio Brass Co.
 1930
U 1,764,434 June 17, 1930 Insulator
Wood strain insulator with coating such as rubber over the metal ends and extending only a short distance to prevent burning the insulator from corona		 COCHRAN, Paul B.
 Strain Westinghouse Electric & Mfg. Co.
 1932
U 1,866,804 July 12, 1932 Means for Utilizing Wood Poles to Aid Insulators
On wood poles, connect the steel pins with a conductor and fuse to aid grounding an insulator struck by lightning and reduce the chance of burning the crossarm or pole		 HAWLEY, Kent A.
 Transmission Locke Insulator Corp.
 1946
U 2,392,342 January 8, 1946 Combined Spark Gap and Insulator
CD 186, CD 186.1, CD 186.2; Transparent glass insulator with spark gap within the insulator for signal circuits		 STEINMAYER, Alwin G.
 Spark Gap Line Material Co.
 1985
U 4,524,404 June 18, 1985 High Voltage Insulator Assemblage Having Specially Chosen Series Resistance
Suspension insulator that eliminates flashover due to dirty insulators		 VERMA, Mandranjan
 Suspension  

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