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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 = '174') AND (category.subclass = '180') ORDER BY date ASC, patent, type

Total of 18 patents found where: Class is '174'; Subclass is '180';

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T / S Patent Date Description Patentee Category Assigned To
 1851
U 8,419 October 14, 1851 Insulator for Telegraph Wires
Hook embedded in metal shell (with guta percha) for bolting
ROBBINS, Zenas C.
Hook  
 1867
U 65,886 June 18, 1867 Improvement in Insulators for Telegraph Wires
Hook with wooden block, insulator with dead air space and wooden disk, glass lugs
DAY, Alfred B.
Hook  
 1870
U 105,625 July 26, 1870 Improvement in Telegraph Insulators
Gutta-percha, paraffin or other insulation separating two metal shells
BALDWIN, William W.
Gutta  
 1873
U 135,334 January 28, 1873 Improvement in Telegraph Insulators
Blocks (2) (glass) inside a metal box with suspended bolt to hold wire
HENDRICKS, Nathan
Block  
 1892
U 467,942 February 2, 1892 Insulator
Suspension type using mica sheets with metal case
LEE, Charles T.
Suspension 1/2 to The Gould & Watson Co.
U 481,132 August 16, 1892 Insulator
Device and insulator for suspending wires using one or more insulators encased in a metal sphere with wire suspended by means of a bolt or hook set in the center of the two halves of the spherical insulator (see 286,681)
BOWEN, William J.
Insulator William Hubbard
 1893
U 489,658 January 10, 1893 Strain Insulator
Strain type
MCCARTHY, Louis
Strain  
 1897
U 593,625 November 16, 1897 Insulated Hanger
Hanger insulator of glass or porcelain encased in metal for arc lamps
WARNER, Ernest P.
Hanger Western Electric Co.
 1903
U 746,469 December 8, 1903 Electrical Wire Support
Wire support of cylindrical shape & metal support bolt to underhang wire
CULLEN, Beauregard
Wire  
 1908
U 896,934 August 25, 1908 Insulator
Strain insulator (assigned to Westinghouse) (see article 12236)
NIKONOW, John P.
Strain  
 1911
U 1,000,493 August 15, 1911 Insulator for Electric Railway Cars
Spool type insulator to suspend electrical equipment from electric train cars
CHRISTENSEN, John
Miscellaneous  
 1912
U 1,035,231 August 13, 1912 Insulator
Use of varnish residue to secure hold metal suspension parts to a porcelain hood or skirt
RANDOLPH, Leonard M.
Miscellaneous  
 1915
U 1,166,391 December 28, 1915 Insulator
Disk type strain with petticoats
STEINBERGER, Louis
Electrose  
 1918
U 1,282,481 October 22, 1918 Multiple Section Suspension Insulator
Suspension insulator with symmetrical metal parts to reduce electrical strain
SONNEBORN, Sol S.
Suspension  
 1924
U 1,484,569 February 19, 1924 Ceramic Body
Method of making a suspension disk by inserting a fired porcelain part inside the bottom of an unfired disk, then firing the disk, which shrinks around the insert securing a cemented pin inside
SCHEID, Johannes Friedrich
Suspension H. Schomburg & Shone
 1926
U 1,608,029 November 23, 1926 Insulator
Suspension insulator
LOCKE, Fred M.
Suspension  
 1929
U 1,717,885 June 18, 1929 Mounting for Electric Conductors
Hanger insulator made of rubber for trolley conductor
LEIPERT, August H.
Hanger The Rubber Shock Insulator Corp.
 1943
U 2,317,799 April 27, 1943 Line Insulator
Insulator composed of a metallic hollow shell coated with ceramic material
PERLES, Maurice
Insulator Mycalex Corp. of America

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