Search the Insulator Patent Reference Library:

Build your search criteria. The patent must match all the values specified.
Select patent types: Utility   Design   Reissue
Patent number:
Date:
Year between: and
Patentee starting with:
City:
State:
Assigned To starting with:
Description containing:
Category:
Class:    Subclass:
Click Search when complete:
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 = 'D13') ORDER BY description ASC, date, patent, type

Total of 65 patents found where: Class is 'D13';

View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.

T / S Patent Date Description Patentee Category Assigned To
 1966
U Specimen known 3,268,655 August 23, 1966 High Voltage Cable Spacer Insulator Device
Aerial spacer to hold three high voltage conductors and keep them spaced apart.		 HAIGH, William Francis
MCMAHON, Chester
MCMAHON, Eugene Joseph
 Spacer Fargo Manufacturing Co.
 1933
U 1,934,308 November 7, 1933 Insulator Support
Bracket mounted horizontally to hold a spool insulator		 HOIT, Julian D.
 Bracket National Electric Products Corp.
 1879
D Specimen known 10,981 January 14, 1879 Design for Telegraph Insulator
CD 102 ""pony"" telegraph insulator		 BROOKFIELD, James M.
 Pin-type  
 1899
D Specimen known 31,799 November 7, 1899 Design for an Insulator
CD 121 and CD 143 with vertical ridges		 WITHYCOMBE, Frederick H.
 Pin-type 11/20 to Clement Henry McLeod
D Specimen known 31,798 November 7, 1899 Design for an Insulator
CD 143 with diagonal spiral ridges		 WITHYCOMBE, Frederick H.
 Pin-type 11/20 to Clement Henry McLeod
 1884
D Specimen known 14,674 February 12, 1884 Design for an Insulator
CD 145 beehive design		 OAKMAN, Samuel
 Pin-type  
 1941
U Specimen known 2,266,400 December 16, 1941 Insulator
CD 216		 REED, Frederick F.
 Insulator  
 1899
D Specimen known 30,637 April 25, 1899 Design for an Insulator
CD 249, CD 282, CD 283, CD 303.5 ""Provo"" insulator		 CONVERSE, Vernon G.
 Pin-type Hemingray Glass Co.
 1893
D Specimen known 22,684 August 8, 1893 Design for an Insulator
CD 268.5 top-groove pin type (Dec. 1974 Cross Arm p. 34)		 GRAY, Lawrence B.
 Pin-type  
 1902
U Specimen known 700,463 May 20, 1902 Insulator for Electric Circuits
CD 301, CD 321 & U-938 (Strengthening ribs skirt to petticoat)		 WALTHER, William J.
 Insulator  
 1915
U 1,163,114 December 7, 1915 Insulator
Cleat		 STAHL, Loren
 Cleat  
 1901
U Specimen known 678,042 July 9, 1901 Rack Insulator
Cleat - rack type		 SARGENT, Howard R.
 Cleat General Electric Co.
 1907
U 869,163 October 22, 1907 Insulator
Cleat for corners		 DEVINE, William J.
 Cleat  
 1923
U 1,441,990 January 9, 1923 Insulator Connector
Connector for the U-bolt links for Hewlett suspension disk		 MARVIN, Richard H.
 Suspension The R. Thomas & Sons Co.
 1908
U 876,939 January 21, 1908 Insulator
Cylinder, solid ribbed, to support wire		 BUCK, Harold W.
 Cylinder  
 1900
D Specimen known 32,741 May 29, 1900 Design for an Insulator
Eave drain & spout		 LOCKE, Fred M.
 Pin-type  
 1940
D 121,705 July 30, 1940 Design for an Electric Fence Insulator
Fence knob		 SMITH, Ralph R.
 Knob  
 1939
D Specimen known 115,530 July 4, 1939 Design for a Porcelain Insulator
Fence knob (Wisconsin Porcelain Co. president)		 STOHL, Ludwig A.
 Knob Wisconsin Porcelain Co.
D 115,578 July 4, 1939 Design for a Porcelain Insulator
Fence knob (Wisconsin Porcelain Co. president)		 STOHL, Ludwig A.
 Knob  
 1896
D 26,323 November 24, 1896 Design for an Insulator
High tension insulator		 LOCKE, Fred M.
 Pin-type  
 1898
D 28,356 March 8, 1898 Design for an Insulator
Insulator (composition?) similar to lightning rod ball		 MCCARTHY, Louis
 Misc  
D 28,355 March 8, 1898 Design for an Insulator
Insulator (composition?) with round end on pin		 MCCARTHY, Louis
 Misc  
 1915
D 48,174 November 23, 1915 Design for an Insulator Body for Trolley Wire Hangers
Knob with mounting hole and square opening at top		 FOX, Alexander Lee
 Knob  
 1898
D 29,782 December 6, 1898 Design for an Insulator
Miscellaneous insulator		 MORGAN, Jacque L.
 Misc  
 1899
D 30,564 April 18, 1899 Design for an Insulator
Miscellaneous insulator		 MORGAN, Jacque L.
 Misc  
 1915
D 46,862 January 19, 1915 Design for an Insulator
Miscellaneous insulator		 CLAPPER, Ralph A.
 Misc  
 1919
D 52,991 February 11, 1919 Design for an Insulator
Miscellaneous knob		 HORTON, John T.
 Knob  
 1916
D 49,538 August 22, 1916 Design for an Insulator
Multipart insulator style (Canadian Porcelain Co. president)		 GODDARD, Walter T.
 Pin-type  
 1930
U Specimen known 1,755,971 April 22, 1930 Insulator
Neon, knob to support wires for neon sign (""spook"" insulator)		 SMALLEY, Robert C.
 Neon Claud Neon Lights, Inc.
 1948
U Specimen known 2,444,938 July 13, 1948 Insulator
Radio antennae insulator with center hole for nail and side slits to hold the antennae wire		 MARTIN, JR., Albert D.
 Radio  
 1926
D Specimen known 69,381 February 9, 1926 Design for an Insulator
Radio strain		 BRACH, Leon S.
 Strain L. S. Brach Manufacturing Co.
 1915
U Specimen known 1,127,776 February 9, 1915 Insulator
Reversible nail-knob		 KETTRON, Charles W.
 Knob Illinois Electric Porcelain Co.
 1899
D 31,861 November 21, 1899 Design for a Ring Insulator
Ring wire holder (see ID 5165)		 COPELAND, Herschel P.
 Misc  
 1897
D 27,756 October 19, 1897 Design for a Line Wire Insulator
Self-tying pin type		 GRAHAM, Sarah A.
 Pin-type  
 1901
D Specimen known 35,462 December 17, 1901 Design for an Insulator for Electric Wires
Self-tying pin type (see patent 707,429; 952,279)		 KING, Theodore F.
 Pin-type  
 1893
D 22,876 November 7, 1893 Design for an Insulator
Square flat insulator with large center hole and small hole in each corner		 WRIGHT, Augustus
 Misc  
 1916
D 49,204 June 20, 1916 Design for an Insulator Body
Square insulator with larger square flange on top and threaded opening in top for bolt		 CLINE, Jerome G.
 Misc  
 1938
D Specimen known 108,489 February 15, 1938 Design for an Electric Insulator
Standard Porcelain No. 57		 DALTON, Rolland E.
 Knob Porcelain Products, Inc.
 1913
D Specimen known 44,118 May 27, 1913 Design for an Insulator
Strain		 WHITE, Thomas C.
 Strain  
 1914
D Specimen known 45,172 January 20, 1914 Design for an Insulator
Strain		 WHITE, Thomas C.
 Strain  
D Specimen known 46,014 June 30, 1914 Design for an Insulator
Strain		 AUSTIN, Arthur O.
 Strain  
D 46,243 August 11, 1914 Design for an Insulator
Strain		 BUNDY, Clifton L.
 Strain  
D Specimen known 46,451 September 22, 1914 Design for an Insulator
Strain		 SCHAAKE, William
 Strain Westinghouse Electric & Mfg. Co.
 1916
D Specimen known 49,365 July 11, 1916 Design for a Strain Insulator
Strain		 MULLER, Henry N.
 Strain  
 1918
D Specimen known 52,139 July 2, 1918 Design for a Strain Insulator
Strain		 KENDIG, Julian H.
 Strain  
 1919
D Specimen known 53,522 July 8, 1919 Design for an Insulator
Strain		 PIERCE, JR., Charles L.
 Strain 1/2 to Hubbard & Co.
 1920
D Specimen known 56,262 September 14, 1920 Design for an Insulator
Strain		 AUSTIN, Arthur O.
 Strain The Ohio Brass Co.
 1921
D Specimen known 59,947 December 13, 1921 Design for an Insulator
Strain		 AUSTIN, Arthur O.
 Strain The Ohio Brass Co.
 1923
U 1,458,756 June 12, 1923 Strain Insulator
Strain insulator with improved method of connecting the metal caps		 GODDARD, Walter T.
 Strain Locke Insulator Corp.
 1941
D Specimen known 126,721 April 22, 1941 Design for a Strain Insulator
Surge fence knob		 SCHILLING, Lorell John
 Knob Babson Brothers Co.
D Specimen known 126,722 April 22, 1941 Design for a Line Insulator
Surge fence knob		 SCHILLING, Lorell John
 Knob Babson Brothers Co.
 1915
D 47,208 April 13, 1915 Design for an Insulator
Suspension insulator		 AUSTIN, Arthur O.
 Suspension  
 1939
D 114,352 April 18, 1939 Design for an Electric Insulator
Suspension insulator		 TAYLOR, John L.
 Suspension  
 1948
U 2,443,436 June 15, 1948 Insulator
Suspension with moisture resistant cushion at bottom of cap and pin		 TAYLOR, John J.
 Suspension The Ohio Brass Co.
 1877
D Specimen known 9,858 March 20, 1877 Design for Telegraph Insulator
Telegraph insulator		 BROOKFIELD, James M.
 Pin-type  
D 9,956 May 8, 1877 Design for Telegraph Insulators
Telegraph insulator		 BROOKFIELD, James M.
 Pin-type  
 1898
D 29,741 November 29, 1898 Design for a Third Rail Insulator
Third rail insulator		 HEWLETT, Edward M.
 Third Rail General Electric Co.
D 28,981 July 5, 1898 Design for a Cap for Insulators
Third rail insulator metal cap		 WILLARD, Ben
 Third Rail General Electric Co.
 1865
U Specimen known 48,906 July 25, 1865 Improvement in Insulators for Telegraph Wires
Threads formed internally for screw pin (see reissue 3,847 on 2-22-1870)		 CAUVET, Louis A.
 Thread  
 1901
D 34,450 April 30, 1901 Design for an Insulator
Top skirt for U-675		 LOCKE, Fred M.
 Pin-type  
 1898
D 28,743 May 31, 1898 Design for an Insulator Plate
Truncated triangular glass plate with three wiring knobs for arc lights		 MCDONALD, William B.
 Misc  
 1901
D Specimen known 34,211 March 12, 1901 Design for an Insulating Support for Electric Conductors
U-966 (see 689,218)		 STILLWELL, Lewis B.
 Pin-type  
 1924
U 1,491,385 April 22, 1924 Insulator
Wall or roof bushing to bring conductor into the building		 FACCILOI, Giuseppe
 Miscellaneous General Electric Co.
 1941
U Specimen known 2,228,196 January 7, 1941 Insulator
Wireholder with lag screw		 BOCH, Oscar A.
 Wireholder  
 1913
D 44,117 May 27, 1913 Design for a Wiring Cleat
Wiring cleat		 WATERMAN, Charles H.
 Cleat  

Total of 0.03 seconds