| Patents for Francis P. Healy |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 2,125,442 | Aug. 02, 1938 | F.P. Healy | Valve regrinding device | valve and seat maintenance |
| 2,189,604 | Feb. 06, 1940 | F.P. Healy | Boring bar guiding mechanism | boring bars |
| 2,196,827 | Apr. 09, 1940 | F.P. Healy | Tool guide for boring machines | vertical boring mills |
| 2,204,855 | Jun. 18, 1940 | F.P. Healy | Boring head | boring heads |
| 2,207,861 | Jul. 16, 1940 | F.P. Healy | Boring bar guiding mechanism | boring bars |
| 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 |
| 2,479,973 | 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 |
| 2,657,470 | Nov. 03, 1953 | E.A. Allen, F.P. Healy | Presetting device for boring tools | boring and turning machines |
| 2,737,760 | Mar. 13, 1956 | F.P. Healy | Machine tool apparatus | crankshaft grinders |
| 2,851,831 | Sep. 16, 1958 | F.P. Healy | Hydraulic work-supporting clamp assembly | engine block and head maintenance |
| 3,060,812 | Oct. 30, 1962 | E.A. Allen, F.P. Healy | Milling machine | milling machines |
| 3,075,413 | Jan. 29, 1963 | E.A. Allen, F.P. Healy | Automotive Brake Drum Lathe | brake drum lathes |
