Dual function brake and manual drive actuating system
US4967886A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1989 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Aug 1, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D55/36
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A dual function brake and manual drive actuating system for selectively holding a rotatable member of a drive train and manually driving the drive train. A support structure is provided, with a brake operatively associated between the support structure and the rotatable member for holding the member against rotation. A common release member is operatively associated with the brake. A fluid retracting mechanism operates against the common release member to selectively hold the brake in disengaged condition. A manual retracting mechanism also operates against the common release member to selectively hold the brake in disengaged condition. A manual drive is incorporated in the manual retracting mechanism for manually rotating the rotatable member when in the disengaged condtion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.