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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 = '141R') ORDER BY date ASC, patent, type

Total of 29 patents found where: Class is '174'; Subclass is '141R';

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T / S Patent Date Description Patentee Category Assigned To
 1908
U Specimen known 880,203 February 25, 1908 Insulator
Suspension insulator with petticoat		 DUNCAN, John D. E.
 Suspension  
 1910
U Specimen known 966,584 August 9, 1910 Protecting Apparatus for Insulators
Suspension protected by arcing ring		 NICHOLSON, Lloyd C.
 Suspension  
 1915
U 1,128,424 February 16, 1915 Insulator
Suspension multipart insulator fitted with arcing horns		 DUNCAN, John D. E.
 Suspension  
 1916
U 1,168,031 January 11, 1916 Suspension Type Insulator
Suspension bell-shaped insulators		 RANDALL, Karl C.
 Suspension Westinghouse Electric & Mfg. Co.
U 1,198,131 September 12, 1916 Insulator
Method of cementing and attaching nested porcelain shells		 JACKSON, Ray P.
   Westinghouse Electric & Mfg. Co.
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 1,241,528 October 2, 1917 Insulator
Suspension with shells nested together by means of external threads		 LINCOLN, Paul M.
 Suspension Westinghouse Electric & Mfg. Co.
U 1,245,940 November 6, 1917 Insulator
Suspension string of various size disks to balance electrical capacitance		 MARVIN, Richard H.
 Suspension The R. Thomas & Sons Co.
 1918
U 1,259,385 March 12, 1918 Suspension Insulator
Suspension insulator (see 1,129,520)		 FORTESCUE, Charles Le G.
 Suspension Westinghouse Electric & Mfg. Co.
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  
 1919
U 1,291,217 January 14, 1919 Adjustable Suspension Insulator
Suspension disk with adjustable length pin to equalize the potential across each disk to reduce arc-over		 SONNEBORN, Sol S.
 Suspension  
 1923
U 1,446,135 February 20, 1923 Insulator
Electrose high voltage insulator with special steel pin threaded at the bottom		 STEINBERGER, Louis
 Electrose  
 1925
U 1,521,743 January 6, 1925 Insulator
Suspension arcing horn system and insulator (see 1,552,664 and 1,783,271)		 AUSTIN, Arthur O.
 Suspension The Ohio Brass Co.
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 1,645,266 October 11, 1927 Insulator Connector
Suspension disk pin connector and shield around it to compensate for electrostatic field		 WAHLBERG, Nils A.
 Suspension Westinghouse Electric & Mfg. Co.
 1929
U 1,712,900 May 14, 1929 Method of Making Forged Insulator Caps
Method to manufacture steel cap for suspension disks		 OSBORNE, David H.
 Manufacturing Locke Insulator Corp.
U 1,728,522 September 17, 1929 Insulator for High Voltage Systems
Suspension disk with strips of high resistance conductive material embedded in the upper surface to produce a uniform distribution of voltage across each disk in a string		 BAUM, Frank G.
 Suspension Westinghouse Electric & Mfg. Co.
U 1,734,167 November 5, 1929 Suspension Insulator Fitting
Link design for Hewlett suspension disks to reduce movement		 HOLMES, Henry R.
 Suspension The R. Thomas & Sons Co.
 1930
U 1,772,513 August 12, 1930 Insulator
Design to allow the lowermost Hewlett disk to have its underside wetted with rain equally with disks above		 HAWLEY, Kent Allen
 Suspension Locke Insulator Corp.
U 1,772,947 August 12, 1930 Electric Insulator
Protective metal shield to cover linkage or connectors for suspension disks to prevent moisture damage to threaded connectors		 HOFFMAN, Gottfried
 Suspension Motor-Columbus Aktiengesellschaft Fur Elektrische Unternehmungen
 1933
U 1,940,591 December 19, 1933 Protecting Apparatus for Insulators
Arcing ring for string of suspension insulators		 HAWLEY, Kent A.
 Arcing Ring Locke Insulator Corp.
 1934
U 1,941,749 January 2, 1934 Insulator
Suspension insulator with upwardly projecting wings on the cap to serve as flux control		 HILLEBRAND, William A.
 Suspension The Ohio Brass Co.
U 1,983,569 December 11, 1934 Pedestal Switch Insulator
Pedestal insulator to support switch gear or bus bar		 ROWLAND, Davidge H.
 Pedestal 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 2,003,225 May 28, 1935 Guy Insulating and Grading Means
Guy strain insulator for radio antenna guy wires		 VROOMAN, Edward C.
 Antenna Locke Insulator Corp.
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.
 1960
U 2,947,801 August 2, 1960 Contamination and Moisture Resistant Insulator
A conductive coating used to generate heat to keep surface of the insulator dry		 DOOLITTLE, Fred B.
 Fog  
 1985
U 4,524,404 June 18, 1985 High Voltage Insulator Assemblage Having Specially Chosen Series Resistance
Suspension insulator that eliminates flashover due to dirty insulators		 VERMA, Mandranjan
 Suspension  

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