Electric contactor for pneumatic servomotor for braking
US4629842A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1985 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Mar 18, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The contactor incorporates, in a cavity (70), a fixed contact blade (20) and a movable contact blade (21) pushed elastically away from the fixed contact blade (20) in the opposite direction to the direction in which the follower (13) is pushed, the follower (13) being capable of cooperating in thrust with the piston mechanism (2) of the casing of the servomotor in which the contactor is mounted, the movable contact blade being coupled to a plunger (15) mounted so as to slide in the follower (13) and incorporating a shoulder (16) which is capable of cooperating with an abutment (18) of the follower. The cavity (70) isoldated hermetically from the outside, communicates freely and permanently with the rear working chamber (4) of the servomotor through passages (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.