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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') ORDER BY date ASC, patent, type

Total of 52 patents found where: Class is '313';

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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  
 1878
U 199,506 January 22, 1878 Improvement in Insulating Underground Telegraph Wires
Underground cable insulated by wrapping with cotton, hemp, or jute and saturating it with paraffin and inserting the wires in heated metal pipes flushed with air to remove moisture.		 BROOKS, David
 Cable  
 1880
R 9,484 November 30, 1880 Telegraph Insulator
Hook with metal case secured to crossarm (see 75,889)		 FINN, John L.
 Hook Amzi S. Dodd and Chinnock Electric Co.
 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 Specimen known 289,890 December 11, 1883 Telegraph and Telephone Conductor
Lightning rod insulator system to protect telephone lines from cross talk		 CHAMBERS, Josephus C.
 Lightning Rod Insulator Vine, Jackson, Gridley
U 289,891 December 11, 1883 Telegraph and Telephone Cable
Lightning rod insulator system to protect telephone lines from cross talk		 CHAMBERS, Josephus C.
 Lightning Rod Insulator Vine, Jackson, Gridley
 1887
U Specimen known 357,050 February 1, 1887 Lightning Protector for Electrical Conductors
Barbed wire as a conductor for lightning protection placed above the electrical conductors on poles		 VAIL, Jonathan H.
 Lightning  
 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  
 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 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  
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.
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  
 1914
U 1,099,421 June 9, 1914 High Voltage Switch
High voltage switch mounted on multipart insulators composed of triangle shaped metal rods and insulators that rotate to open or close the switch.		 BURKE, Alfred Woodard
 Switch  
U 1,106,797 August 11, 1914 Electric Insulator
Suspension insulators		 FAY, John L.
WAY, Sylvester B.
 Suspension  
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 1,127,043 February 2, 1915 Electric Arc Extinguisher
Use of explosive to break the arcing around a multipart insulator (see 1,116,303)		 LOCKE, Fred M.
 Transmission  
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 1,215,549 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
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  
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  
 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  
 1923
U 1,449,793 March 27, 1923 Glass and Process of Making Same
Boro-silicate glass made colorless by adding neodymium oxide		 TAYLOR, William C.
 Boron Corning Glass Works
 1924
U 1,501,732 July 15, 1924 Column Strain Insulator
Electrose strain insulator		 STEINBERGER, Louis
 Strain  
 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.
 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.
 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.
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.
 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.
 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.
U 1,976,378 October 9, 1934 Aviation Marker
Aviation warning light attached to a suspension insulator		 VROOMAN, Edward C.
 Misc Locke Insulator Corp.
U 1,983,903 December 11, 1934 Protective Apparatus for Double String Installations
Arcing rings for a double string of suspension insulators		 HAWLEY, Kent A.
 Arcing Ring Locke Insulator Corp.
 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.
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.
 1941
U 2,264,428 December 2, 1941 Article of Ceramic of Vitreous Material
Manufacturing method to improve quality of porcelain during firing		 AUSTIN, Arthur O.
 Manufacturing The Ohio Brass 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.
 1953
U 2,644,026 June 30, 1953 Radioactive Lightning Protector with Accelerating Elements
Lightning rod with porcelain disk coated with radioactive material		 GRENIER, Joseph Pierre
LESCIEUX, Pierre Edouard Eugene
 Lightning Rod Ste. Helita
 1963
U 3,089,051 May 7, 1963 Catadioptric Electroluminescent Glass Block
Glass Block with internal illumination		 VERES, Frank
 OI Owens-Illinois Glass Co.
 1965
U 3,166,687 January 19, 1965 Transparent Electroluminescent Cell and Glass Block
Glass Block with internal illumination		 VERES, Frank
 OI Owens-Illinois Glass Co.

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