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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 = '208') ORDER BY date ASC, patent, type

Total of 44 patents found where: Class is '174'; Subclass is '208';

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T / S Patent Date Description Patentee Category Assigned To
 1886
U 336,828 February 23, 1886 Insulator
Hanger for lamp		 TRAVIS, Charles L.
 Hanger  
U 352,436 November 9, 1886 Electric Insulator
Strain type		 WINTON, Henry D.
 Strain  
 1887
U 372,940 November 8, 1887 Insulating Joint
Glass ball to insulate a hanging lamp fixture from the support		 SODEN, Francis H.
GOEHST, Henry
 Insulating Joint  
 1892
U Specimen known 476,828 June 14, 1892 Circuit Breaking Insulator
Strain circuit breaking insulator. Patent was owned by Pass & Seymour.		 SEYMOUR, Albert P.
 Strain  
 1897
U 574,828 January 5, 1897 Insulator
Hanger insulator for end of pole or other support		 SMOCK, Benjamin D.
 Hanger  
 1904
U 756,026 March 29, 1904 Insulator
Tree hanger		 KINSLEY, William S.
BELL, Stewart S.
 Tree  
 1908
U Specimen known 905,141 December 1, 1908 Insulator
Strain similar to CD 1130, CD 1131, CD 1138, CD 1140, CD 1142 but with intersecting grooves		 BOGUE, Lawrence L.
 Insulator  
 1909
U 930,527 August 10, 1909 Automatically Adjustable Strain Insulator House Fixture
Wireholder for strain service and attached to a house for a drop wire		 BURGE, Charles S.
 Wireholder  
 1911
U 999,414 August 1, 1911 High Tension Strain Insulator
Electrose strain insulator		 STEINBERGER, Louis
 Strain  
 1912
U 1,028,104 June 4, 1912 Strain Insulator
Strain type		 FLETCHER, Olive L.
 Strain The Peru Electric Mfg. Co.
U Specimen known 1,039,799 October 1, 1912 Insulator Chain for High Pressure Electric Transmission Lines
Suspension chain (pork liver)		 PRIESTLEY, Charles M. E.
 Suspension Societe Vedovelli Priestley
U 1,046,868 December 10, 1912 Strain Insulator
Strain, interlocking type with ribs and metal connectors		 SCHMID, Ernest Emmel
 Strain Shield Electric Co.
U Specimen known 1,048,992 December 31, 1912 Insulator
Strain, interlocking type (OB hog liver)		 MEAD, George A.
 Strain The Ohio Brass Co.
 1913
U 1,072,999 September 9, 1913 Tubular Insulator
miscellaneous		 SIMCOE, George
 Miscellaneous  
 1914
U Specimen known 1,110,934 September 15, 1914 Insulator
Suspension disk		 HEWLETT, Edward M.
 Suspension General Electric Co.
 1915
U 1,160,543 November 16, 1915 High Voltage Strain Insulator
Suspension made of Electrose units		 STEINBERGER, Louis
 Electrose  
 1916
U 1,182,940 May 16, 1916 High Voltage Insulator
Suspension, two part made of Electrose		 STEINBERGER, Louis
 Suspension  
U 1,185,700 June 6, 1916 Insulator for Trolley Wires
Trolley hanger insulator		 MOSS, Benton C.
 Trolley 1/2 to Charles Fritts
D Specimen known 49,365 July 11, 1916 Design for a Strain Insulator
Strain		 MULLER, Henry N.
 Strain  
 1917
U Specimen known 1,216,000 February 13, 1917 Electrical Insulator
Strain with drain holes		 SCULLY, Thomas
 Strain  
U 1,217,508 February 27, 1917 Insulator
Strain and suspension with special metal links for superior strength		 SCHAAKE, William
 Strain/suspension Westinghouse Electric & Mfg. Co.
U 1,219,450 March 20, 1917 Insulator
Suspension with interlocking linkage similar to Hewlett and hog liver		 FOWLE, Frank F.
 Suspension  
 1924
U 1,481,080 January 15, 1924 Insulator
Antenna or guy strain insulator consisting of a bar of porcelain with longitudinal ribs and metal caps on the ends		 AUSTIN, Arthur O.
 Antenna The Ohio Brass Co.
U Specimen known 1,500,814 July 8, 1924 Link Insulator
Suspension link strain		 HEWLETT, Edward M.
 Suspension General Electric Co.
 1925
U 1,524,407 January 27, 1925 Insulator for Suspended High Tension Electric Wires
Strain for horizontal with cupped ends with downward drip edges		 RENAUDIN, Alfred
 Strain  
 1926
U 1,578,526 March 30, 1926 Insulator
Suspension string composed of multiple porcelain disks with a hook-like link on top and bottom to allow them to be quickly strung together		 JACKSON, Ray P.
 Suspension Westinghouse Electric & Mfg. Co.
 1927
U 1,622,648 March 29, 1927 Insulator
Suspension similar to Hewlett with uniform thickness of porcelain		 JACKSON, Ray P.
 Suspension Westinghouse Electric & Mfg. Co.
U Specimen known 1,651,201 November 29, 1927 Insulator
Suspension Hewlett type		 GOUVERNEUR, Minor F. H.
 Suspension Locke Insulator Corp.
U 1,652,506 December 13, 1927 Link-Type Insulator
Suspension bell-shaped link type with special U-shaped cable links		 WAHLBERG, Nils A.
 Suspension Westinghouse Electric & Mfg. Co.
 1928
U 1,663,421 March 20, 1928 Line Breaker
Breaker insulator similar to guy strain		 STUBBINGS, Edwin L.
 Breaker  
 1929
U Specimen known 1,700,066 January 22, 1929 Insulator for Radio Frequency Currents
Radio strain insulator made from Pyrex glass for antennas		 MARSHALL, Albert E.
 Radio Corning Glass Works
U 1,707,054 March 26, 1929 Insulator
Strain type (impractical)		 DOELTER, Otto
 Strain  
 1930
U 1,748,884 February 25, 1930 Leakproof Insulator
Bell shaped radio antenna insulator to protect wire from getting wet from rain or snow.		 KITTS, David Roscoe
 Antenna  
 1932
U 1,861,316 May 31, 1932 Insulator
Suspension (Hewlett type) with oil reservoir		 MONTANDON, Arthur
 Suspension 1/2 to Societe Gen. D'Entr.
U 1,886,984 November 8, 1932 Insulator Structure
Radio strain insulator for antennas		 STATON, Harry C.
 Radio  
 1933
U 1,896,937 February 7, 1933 Insulator
Fog type suspension like a Hewlett but with the edges curved sharply upward		 BRINEY, Perry G.
 Fog  
 1934
U Specimen known 1,952,517 March 27, 1934 Insulator
Post type insulator with metal brackets bolted on with U-bolt to stack insulators or attach equipment		 STINSON, William L.
STROUP, Charles L.
 Post Type Jeffery-Dewitt Insulator Co.
 1935
U 2,003,225 May 28, 1935 Guy Insulating and Grading Means
Guy strain insulator for radio antenna guy wires		 VROOMAN, Edward C.
 Antenna Locke Insulator Corp.
 1937
U 2,093,872 September 21, 1937 Radio Antenna Insulator for Airplanes
Antenna insulator for airplanes		 MCCOY, Robert L.
 Antenna Locke Insulator Corp.
U 2,093,875 September 21, 1937 Strain Insulator
Strain insulator for radio antennas		 STEVENS, Leland James
 Strain Locke Insulator Corp.
 1942
U 2,270,964 January 27, 1942 Insulator for Antenna Span or Guy Ropes
Compression antenna insulator for very heavy loads (see 2,297,430)		 PETERS, Wilhelm
 Strain Telefunken Geselleschaft fur Drahtlose Telegraphie m. b. H.
U Specimen known 2,297,430 September 29, 1942 Antenna Insulator
Compression antenna insulator for very heavy loads (see 2,270,964)		 PETERS, Wilhelm
 Antenna  
 1951
U Specimen known 2,540,608 February 6, 1951 Strain Insulator
U-shaped strain used to support the conductor from a fence post.		 BUSSMANN, Aloysius B.
 Strain  
 1953
U 2,625,581 January 13, 1953 Guy Insulator
Heavy duty guy strain insulator		 JENNER, Ralph L.
FIERO, Carl D.
 Strain Lapp Insulator Co., Inc.

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