| Patents for Thompson Grinder Co. |
Patents 76 -
89
of 89
      |
| Number | Date | Patentee | Title | Type |
| GB-850,425 | Oct. 05, 1960 | F.G. Krafft, W. Ernst | A hydraulic circuit embodying a combined pump and control unit | grinding machines |
| 2,985,109 | May 23, 1961 | W. Ernst | Hydraulic Pump | hydraulic apparatus |
| 2,986,852 | Jun. 06, 1961 | J.C. Wilson | Grinding machines | surface grinders |
| CA-628,890 | Oct. 10, 1961 | F.G. Krafft, W. Ernst | Pump control | grinding machines |
| 3,011,449 | Dec. 05, 1961 | W. Ernst | Vaned Hydraulic Unit | hydraulic apparatus |
| 3,015,212 | Jan. 02, 1962 | W. Ernst, F.G. Krafft | Pump Control | hydraulic apparatus |
| 3,047,987 | Aug. 07, 1962 | F.G. Krafft, W.G. Baldenhofer | Apparatus for Submerged Grinding | metalworking machine mechanisms |
| GB-913,197 | Dec. 19, 1962 | F. Krafft, W. Ernst | Improvements in hydraulic systems | grinding machines |
| CA-656,461 | Jan. 22, 1963 | F.G. Krafft, W. Ernst | Control pump | grinding machines |
| 3,083,535 | Apr. 02, 1963 | F.G. Krafft, W. Ernst | Hydraulic servo system | hydraulic apparatus |
| 3,087,286 | Apr. 30, 1963 | F.G. Krafft | Feeding method and apparatus | grinders |
| DE-1,153,585 | Aug. 29, 1963 | F.G. Krafft, W. Ernst | Regulating hydraulic drives for grinding machines by radial displacement of a ring surrounding the rotor of the pump | grinding machines |
| 3,231,320 | Jan. 25, 1966 | F.G. Krafft | Hydrostatic Lubrication | metalworking machine lubrication |
| 3,305,974 | Feb. 28, 1967 | J.C. Wilson | Grinding Machine | |
