Pneumatic reciprocating motor and grease gun incorporating same
US6736292B2 · kind B2 · utility
12Cited by
20References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2002 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Jul 6, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N11/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A grease gun having a compressed-air-operated reciprocating motor for reciprocating a pump plunger through forward and return strokes. The motor comprises a motor cylinder and a motor piston operable in the cylinder and itself acting as a valve for effecting its return through each return stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.