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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 = '313') AND (category.subclass = '243') ORDER BY date ASC, patent, type

Total of 25 patents found where: Class is '313'; Subclass is '243';

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T / S Patent Date Description Patentee Category Assigned To
 1867
U Specimen known 63,206 March 26, 1867 Improvement in Insulators for Telegraph Wires
Hook encased in metal or wood allows arcing to ground		 BROOKS, David
 Hook  
 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
 1900
U 652,861 July 3, 1900 Overhead Wire Lightning Protector
Lightning rod with multiple points (see 637,282) (see reissue 11,759)		 POCHE, Joseph Arthur
 Lightning Rod Point  
 1908
U Specimen known 880,203 February 25, 1908 Insulator
Suspension insulator with petticoat		 DUNCAN, John D. E.
 Suspension  
U 892,822 July 7, 1908 Pole Top Cap
Metal pole top cap with insulator support and lateral extension to support protector wire		 FRASER, James William
 Bracket  
 1910
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.
 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  
 1914
U 1,106,797 August 11, 1914 Electric Insulator
Suspension insulators		 FAY, John L.
WAY, Sylvester B.
 Suspension  
 1915
U 1,128,424 February 16, 1915 Insulator
Suspension multipart insulator fitted with arcing horns		 DUNCAN, John D. E.
 Suspension  
U 1,166,393 December 28, 1915 Insulator
Electrose high tension pintype insulator		 STEINBERGER, Louis
 Electrose  
 1916
U 1,198,137 September 12, 1916 Insulator
Suspension insulator with an outer covering of spun steel or iron.		 LINCOLN, Paul M.
 Suspension Westinghouse Electric & Mfg. Co.
 1917
U 1,250,387 December 18, 1917 Electric Insulator
Suspension made of several parts bolted together		 THOMAS, Percy H.
 Suspension  
 1918
U 1,264,396 April 30, 1918 Lightning Arrester
Lightning arrester attached to M-3021		 HAYS, Frederick W.
 Lightning Arrester/M-3021  
U 1,273,015 July 16, 1918 Electric Insulator
Suspension made of several parts bolted together		 THOMAS, Percy H.
 Suspension  
U 1,277,304 August 27, 1918 Metal Protected High Voltage Insulator
Protective shield of metal to protect insulator		 GATI, Bila
 Protective Shield  
 1919
U 1,303,324 May 13, 1919 Electric Insulator
Suspension tubular insulator with flanged top metal cap and bottom metal cap		 JACKSON, Ray P.
 Suspension Westinghouse Electric & Mfg. Co.
 1922
U 1,403,717 January 17, 1922 Insulator
Strain or suspension in compression		 STEINBERGER, Louis
 Electrose  
 1924
U 1,501,732 July 15, 1924 Column Strain Insulator
Electrose strain insulator		 STEINBERGER, Louis
 Strain  
 1927
U 1,654,047 December 27, 1927 Strain Insulator
Strain insulator with steel covering whereby the porcelain insulator is in compression		 LAPP, John S.
 Strain Lapp Insulator Co.
 1934
U 1,947,321 February 13, 1934 Arcing Horn for Insulators
Arcing horns for Hewlett or other suspension insulator string		 VINCENT, Harold Blanchard
SLEEMAN, Harold Parker
 Suspension The R. Thomas & Sons Co.
 1943
U 2,336,324 December 7, 1943 Strain Insulator
A rod of wood as a guy strain insulator for transmission poles		 WARREN, Pickett L.
 Strain Royal Electric Mfg. Co.
 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.

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