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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 = '326') ORDER BY description ASC, date, patent, type

Total of 19 patents found where: Class is '313'; Subclass is '326';

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T / S Patent Date Description Patentee Category Assigned To
 1935
U 2,011,136 August 13, 1935 Protective Apparatus
Arcing gap using flux control insulators
AUSTIN, Arthur O.
Arc Gap The Ohio Brass 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.
 1931
U 1,799,977 April 7, 1931 Distributor Ring
Arcing ring or electrostatic field control structure for suspension string
FORTESCUE, Charles Le G.
Arcing Ring Westinghouse 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.
 1929
U 1,730,170 October 1, 1929 Insulator
Design with metal pin and metal projections to prevent arc-over
SMITH, Harold B.
Suspension Westinghouse Electric & Mfg. Co.
U 1,730,171 October 1, 1929 Insulator
Design with metal pin and metal projections to prevent arc-over
SMITH, Harold B.
Suspension Westinghouse Electric & Mfg. Co.
 1918
U 1,264,396 April 30, 1918 Lightning Arrester
Lightning arrester attached to M-3021
HAYS, Frederick W.
Lightning Arrester/M-3021  
 1908
U 883,303 March 31, 1908 Security Lightning Arrester
Lightning rod with multiple separate points arranged along the conductor on the edges of the roof
DRAKE, William E.
Lightning Rod Point  
 1935
U 2,022,863 December 3, 1935 Arcing Guard
Metal arcing guard for suspension string
LUSIGNAN, JR., Joseph T.
Arcing Ring The Ohio Brass Co.
 1922
U 1,403,717 January 17, 1922 Insulator
Strain or suspension in compression
STEINBERGER, Louis
Electrose  
 1925
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.
 1929
U 1,730,180 October 1, 1929 Insulator
Suspension insulator made of cylindrical insulator and metal hoods on each end
WAHLBERG, Nils A.
Suspension Westinghouse Electric & Mfg. Co.
 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.
 1908
U Specimen known 880,203 February 25, 1908 Insulator
Suspension insulator with petticoat
DUNCAN, John D. E.
Suspension  
 1917
U 1,250,387 December 18, 1917 Electric Insulator
Suspension made of several parts bolted together
THOMAS, Percy H.
Suspension  
 1918
U 1,273,015 July 16, 1918 Electric Insulator
Suspension made of several parts bolted together
THOMAS, Percy H.
Suspension  
 1910
U Specimen known 966,584 August 9, 1910 Protecting Apparatus for Insulators
Suspension protected by arcing ring
NICHOLSON, Lloyd C.
Suspension  
 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.
 1917
U 1,215,549 February 13, 1917 Electric Conductor Insulating Support
Suspension with method of balancing the electrical load across the string
KOONTZ, JR., John A.
Suspension 1/2 to Beardsley/1/4 to Shoemaker

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