Multistage cylinder actuator
US4984509A · kind A · utility
3Cited by
3References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jun 1, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Jun 1, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multistage cylinder actuator comprising a center cylinder unit and annular auxiliary cylinder units which are concentrically located around the center cylinder and which are removably attached to a common plate so as to independently operate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.