Crane Packing Co
Crane PackActive Patents
0
Total Holdings
15
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3804424A | Gap seal with thermal and pressure distortion compensation | Expired / Lapsed | 1972-04-24 | 1974-04-16 | 5 | Details |
| US2868575A | Gasket and method of making same | Expired / Lapsed | 1954-08-16 | 1959-01-13 | 0 | Details |
| US2807215A | Variable displacement pump | Expired / Lapsed | 1955-07-28 | 1957-09-24 | 0 | Details |
| US2745687A | Shaft seal | Expired / Lapsed | 1953-08-31 | 1956-05-15 | 0 | Details |
| US2628852A | Cooling system for double seals | Expired / Lapsed | 1949-02-02 | 1953-02-17 | 0 | Details |
| US2610075A | Rotary mechanical seal with telescoping parts | Expired / Lapsed | 1950-01-13 | 1952-09-09 | 0 | Details |
| US2535694A | Self-sealing coupling | Expired / Lapsed | 1946-07-06 | 1950-12-26 | 0 | Details |
| US2479265A | Fluid seal | Expired / Lapsed | 1944-12-29 | 1949-08-16 | 0 | Details |
| US2447663A | Fluid seal | Expired / Lapsed | 1945-06-16 | 1948-08-24 | 0 | Details |
| US2443145A | Coupling | Expired / Lapsed | 1945-01-17 | 1948-06-08 | 0 | Details |
| US2425209A | Seat for mechanical seals | Expired / Lapsed | 1944-08-31 | 1947-08-05 | 0 | Details |
| US2337639A | Liquid seal for rotary shafts | Expired / Lapsed | 1941-02-08 | 1943-12-28 | 0 | Details |
| US2326000A | Bearing material | Expired / Lapsed | 1942-04-27 | 1943-08-03 | 0 | Details |
| US2233232A | Internal gripping device for smooth bore ferrules | Expired / Lapsed | 1939-04-26 | 1941-02-25 | 0 | Details |
| US2173744A | Plastic packing with reinforced back | Expired / Lapsed | 1938-04-18 | 1939-09-19 | 0 | Details |