| Patents for Thompson Grinder Co. |
Patents 61 -
75
of 89
      |
| Number | Date | Patentee | Title | Type |
| 2,612,114 | Sep. 30, 1952 | W. Ernst | Vane Pump or Motor | hydraulic apparatus |
| 2,612,115 | Sep. 30, 1952 | W. Ernst | Vane Pump and Vane Therefor | hydraulic apparatus |
| 2,623,333 | Dec. 30, 1952 | W.G. Baldenhofer | Apparatus for Grinding | cylindrical grinders |
| 2,633,678 | Apr. 07, 1953 | H.F. Smith | Machine Tool and Method of Operation | metalworking machine mechanisms |
| 2,636,321 | Apr. 28, 1953 | J.C. Wilson | Machine tool | grinders |
| CA-495,289 | Aug. 11, 1953 | J.C. Wilson | Method of and device for grinding | profile and contour grinders |
| CA-495,290 | Aug. 11, 1953 | J.C. Wilson | Grinding machines and method of shaping grinding wheels | profile and contour grinders |
| 2,682,748 | Jul. 06, 1954 | W. Ernst | Restrictor Valve for a Servomotor Circuit | hydraulic apparatus |
| CA-512,794 | May 10, 1955 | J.C. Wilson, W.G. Baldenhofer | Method and apparatus for grinding | profile and contour grinders |
| 2,723,505 | Nov. 15, 1955 | F.G. Krafft | Method and Apparatus for Surface Finishing | surface grinders |
| 2,730,074 | Jan. 10, 1956 | W. Ernst | Servo-motor valve | hydraulic apparatus |
| 2,785,511 | Mar. 19, 1957 | J.C. Wilson | Grinding Machine and Method of Operation | surface grinders |
| 2,921,439 | Jan. 19, 1960 | F.G. Krafft | Pump Control | hydraulic apparatus |
| 2,926,653 | Mar. 01, 1960 | F.G. Krafft | Grinding machines | profile and contour grinders |
| 2,932,985 | Apr. 19, 1960 | W.G. Baldenhofer | Long Piston Rods and Motor Embodying the Same | hydraulic apparatus |
