Pneumatic-servomotor with force-controlled boosting
US6269731A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | May 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/575
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic booster operated by a plunger (8) located in a piston (5) with a rear section (82) which operates a valve (91,92,93) to develop a force on the piston (5) to apply a boost force to force-transmission members (12,14). The plunger (8) has a first section (81) connected to the rear section (82) by a spring (15). The front section (81) and the force-transmission members (12,14) defining a retention assembly (16,17) for securing the front section (81) to the piston (5) when a boost force exceeds a predetermined threshold while the plunger (8) is in a maximum actuating position to allow for extended actuation of the booster following a sharp braking action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.