| Patents for Ryman Engineering Co. |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 2,479,536 | Aug. 16, 1949 | J.A. Elmes | Grinding apparatus of the abrasive belt type | metal sanding machines |
| 2,609,610 | Sep. 09, 1952 | J.A. Elmes | Gauge for roll crowns | |
| 2,692,460 | Oct. 26, 1954 | W.D. Roberts | Grinding apparatus for the traveling belt type | metal sanding machines |
| 2,712,204 | Jul. 05, 1955 | W.D. Roberts | Grinding apparatus of the traveling belt type | metal sanding machines |
| CA-517,417 | Oct. 11, 1955 | W.D. Roberts | Grinding apparatus of the traveling belt type | metal sanding machines |
| CA-518,310 | Nov. 08, 1955 | W.D. Roberts | Grinding apparatus of the traveling belt type | metal sanding machines |
| 2,798,340 | Jul. 09, 1957 | W.D. Roberts | Apparatus for grinding internal surfaces | metal sanding machines |
| 3,733,929 | May 22, 1973 | J.J. Fatula | Indexing apparatus | |
| 3,961,736 | Jun. 08, 1976 | J.J. Fatula | Rubber-covered self-centering rolls | |
| 3,961,737 | Jun. 08, 1976 | J.J. Fatula | Self-centering rolls | |
| CA-1,007,257 | Mar. 22, 1977 | J.J. Fatula | Self-centering rolls | |
| 4,292,767 | Oct. 06, 1981 | J.J. Fatula | Belt grinder for grinding non-circular workpiece | metal sanding machines |
| 4,428,158 | Jan. 31, 1984 | J.J. Fatula, Sr. | Method and apparatus for grinding irregular surfaces | grinders |
| 4,499,693 | Feb. 19, 1985 | M.J. Carroll, J.J. Fatula, Sr. | Method of grinding non-uniform workpieces | metal sanding machines |
