Force transmitting apparatus
US5950991A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 1997 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | May 6, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2123/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved force transmitting apparatus for transmitting force between first and second members includes a plurality of force transmitting assemblies. The force transmitting assemblies are operable between engaged conditions in which the first force transmitting apparatus is effective to transmit force and disengaged conditions in which the force transmitting apparatus is ineffective to transmit force. A controller operates the force transmitting assemblies between the disengaged and engaged conditions as a function of a load applied to the apparatus. The improved force transmitting apparatus is useful as a brake in a drilling system having a draw string connectable with pipe. The force transmitting assemblies are connected with a drum of a winch connected to the draw string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.