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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (assigned_to = 'The R. Thomas & Sons Co.') ORDER BY date ASC, patent, type

Total of 29 patents found where: Assigned To is 'The R. Thomas & Sons Co.';

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T / S Patent Date Description Patentee Category Assigned To
 1898
U Specimen known 601,195 March 22, 1898 High Potential Insulator
Inner skirt extending down to the crossarm or through the crossarm to prevent arcing from the petticoat edges to the pin, U-944. (see patent 600,475) (see patent gb1898-0006235)		 BOCH, John W.
 Insulator The R. Thomas & Sons Co.
 1905
U 788,120 April 25, 1905 Press for Plastic Material
Insulator press for forming the bottom shell and threaded pinhole of multipart porcelain insulators (Thomas blue jean seam impression in bottom skirt)		 THOMAS, George W.
 Press The R. Thomas & Sons Co.
U 806,717 December 5, 1905 High Voltage Insulator
Skirt (inner) cemented to insulator & extending to crossarm		 THOMAS, George W.
 Skirt The R. Thomas & Sons Co.
 1908
U 878,910 February 11, 1908 Die for Saggers and the Like
Metal dies for making saggers.		 THOMAS, George W.
 Sagger The R. Thomas & Sons Co.
U 899,871 September 29, 1908 Mantle Ring Mold
A mold for making mantle rings.		 KENNEY, Benjamin D.
 Mold The R. Thomas & Sons Co.
 1911
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.
U Specimen known 1,010,920 December 5, 1911 High Tension Insulator
Suspension cap and pin design using simple locking pin		 KENNEY, Benjamin D.
 Suspension The R. Thomas & Sons Co.
 1914
U 1,093,479 April 14, 1914 Insulator
Multipart using interchangeable shells cemented to leave air pocket		 SANFORD, JR., Joseph A.
 Multipart The R. Thomas & Sons Co.
U 1,093,480 April 14, 1914 Insulator
Multipart same as 1,093,479 with plug to block cement from air pocket		 SANFORD, JR., Joseph A.
 Multipart The R. Thomas & Sons Co.
U 1,109,470 September 1, 1914 Post Insulator
Multipart insulator to support high tension conductors in substation		 SANFORD, JR., Joseph A.
 Multipart The R. Thomas & Sons Co.
U 1,122,030 December 22, 1914 Suspension Insulator Eyebolt
Steel eyebolt pin for suspension insulators		 STANFORD, JR., Joseph Addison
 Suspension The R. Thomas & Sons Co.
 1917
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.
 1920
U 1,328,732 January 20, 1920 Insulator Pin
Improvement of the Lee pin (see 855,253) to allow adjustment of the insulator		 HARMS, Rhinehart W.
 Pin The R. Thomas & Sons Co.
 1921
U 1,378,667 May 17, 1921 Cable Clamp
Cable clamp to hold the conductor under the insulator.		 ECKERT, Grandon E.
 Clamp The R. Thomas & Sons Co.
 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.
U 1,458,811 June 12, 1923 Insulator Connector
Link for Hewlett suspension disk (see 1,633,399)		 ECKERT, Grandon E.
 Suspension The R. Thomas & Sons Co.
U 1,465,157 August 14, 1923 Apparatus for Shaping Insulators
Machine to shape to crown of a small pin-type insulator		 BUCKLEY, Lorenzo C.
 Machine The R. Thomas & Sons Co.
U 1,471,907 October 23, 1923 Machine for Heading Porcelain Tubes and the Like
Machine to make porcelain wall tubes		 MASON, Albert G.
BUCKLEY, Lorenzo C.
 Wall Tube The R. Thomas & Sons Co.
 1925
U Specimen known 1,526,168 February 10, 1925 Insulator Link
Suspension links for Hewlett disks		 MARVIN, Richard H.
 Suspension The R. Thomas & Sons Co.
U 1,566,070 December 15, 1925 Sagger
Sagger to provide uniform distribution in the kiln		 BUCKLEY, Lorenzo C.
 Sagger The R. Thomas & Sons Co.
 1927
U 1,633,399 June 21, 1927 Insulator Fitting
Link for Hewlett suspension disk (see 1,458,811)		 ECKERT, Grandon E.
 Suspension The R. Thomas & Sons Co.
 1928
U 1,690,989 November 6, 1928 Multiple String Insulator Suspension
Suspensions made up of several strings of disks		 MARVIN, Richard H.
 Suspension The R. Thomas & Sons Co.
 1929
U 1,708,876 April 9, 1929 Insulator
Suspension Hewlett links made of formed sheet metal		 ECKERT, Grandon E.
 Suspension The R. Thomas & Sons Co.
U 1,733,067 October 22, 1929 Insulator
Multipart with metal cap to prevent damage due to temp changes		 MARVIN, Richard H.
 Multipart The R. Thomas & Sons 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 1,755,032 April 15, 1930 Insulator
Post insulator made up of Hewlett disks		 SLEEMAN, Harold P.
 Post Type The R. Thomas & Sons Co.
U 1,760,786 May 27, 1930 Coupling for Insulators
Two part metal coupling to link Hewlett disks together		 SLEEMAN, Harold P.
 Suspension The R. Thomas & Sons 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.
 1939
U 2,154,387 April 11, 1939 Electric Insulator
RFI: coat crown with metallic glaze to prevent radio interference (advertised in Electrical World 8-12-1939)		 SLEEMAN, Harold P.
 RFI The R. Thomas & Sons Co.

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