Patents for F. R. Cornwall |
Patents 16 -
28
of 28
      |
Number | Date | Patentee | Title | Type |
D30,348 | Mar. 14, 1899 | M.F. Williams | Design for a pulley | industrial machine pulleys and belt drive mechanisms |
622,247 | Apr. 04, 1899 | C.R. Meston | Lubricated bearing | motor bearings |
RE11,787 | Nov. 14, 1899 | C.R. Meston | Electric motor | shaded pole induction motors |
657,963 | Sep. 18, 1900 | G.M. Schroeter | Rotatable center for dining-tables | |
683,614 | Oct. 01, 1901 | C.R. Meston | Air-compressor | air compressors |
724,484 | Apr. 07, 1903 | T.M. Meston, C.R. Meston | Field-magnet core | AC motors |
770,785 | Sep. 27, 1904 | E.H. Steedman | Pressure control for air-compressors | air compressors |
821,661 | May 29, 1906 | C.R. Meston | Machine-operating mechanism | sewing machines |
844,383 | Feb. 19, 1907 | H.I. Finch, C.R. Meston | Electric motor | repulsion start induction run motors |
895,573 | Aug. 11, 1908 | W.L. Myers | Spirit level | |
928,394 | Jul. 20, 1909 | H.I. Finch, C.R. Meston | Rheostat | electrical devices |
947,529 | Jan. 25, 1910 | C.R. Meston | Lubricating bearings | motor bearings |
952,458 | Mar. 22, 1910 | H.I. Finch, C.R. Meston | Oscillating electric fan | |