| Patents for Van Norman Co. |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| 2,334,581 | Nov. 16, 1943 | R.S. Pyne | Cross-feed for grinding machines | cylindrical grinders |
| 2,370,580 | Feb. 27, 1945 | E.A. Allen, R.S. Pyne | Cross-feed mechanism for grinding machines | grinders |
| 2,381,687 | Aug. 07, 1945 | E.A. Allen, R.S. Pyne | Drive for oscillating grinders | grinders |
| 2,400,767 | May 21, 1946 | C. Melidoni, H. Gass | Grinding attachment | cylindrical grinders |
| 2,412,937 | Dec. 24, 1946 | E.A. Allen | Boring head | boring heads |
| 2,413,068 | Dec. 24, 1946 | R.S. Pyne | Diaphragm chuck | cylindrical grinders |
| 2,416,996 | Mar. 04, 1947 | E.A. Allen, F.P. Healy | Boring bar guiding mechanism | vertical boring mills |
| 2,429,685 | Oct. 28, 1947 | F.P. Healy | Chuck for crankshaft grinders | crankshaft grinders |
| 2,447,334 | Aug. 17, 1948 | F.P. Healy | Crankshaft regrinding chuck | crankshaft grinders |
| 2,451,137 | Oct. 12, 1948 | C.E. White | Contour grinding machine for work pieces each having a hollow spherical section | grinders |
| 2,479,973 | Aug. 23, 1949 | E.A. Allen, F.P. Healy, J.Y. Scott | Chuck | valve and seat maintenance |
| 2,484,708 | Oct. 11, 1949 | F.P. Healy | Work supporting cradle for grinding machines | surface grinders |
| 2,584,499 | Feb. 05, 1952 | R.S. Pyne | Apparatus for precision bore grinding | grinders |
| 2,652,663 | Sep. 22, 1953 | E.C. Taylor | Method and apparatus for compensating for grinding wheel wear | grinders |
| 2,657,470 | Nov. 03, 1953 | E.A. Allen, F.P. Healy | Presetting device for boring tools | boring and turning machines |
