Slidable brush and screw linear drive arrangement
US4345515A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1981 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Feb 17, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18688
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A linear drive arrangement comprises a prime mover which is capable of rotatably driving a screw threaded rod. A carriage is mounted on the rod and carries a plurality of bristles, for example in the form of a brush, which bristles contact the surface of the screw threaded rod. Rotation of the rod by the prime mover causes the bristles to follow screw thread of the rod to drive the carriage along the rod. The advantage of this is that no clutch mechanism is required as if force is applied to the carriage either to prevent it from moving along the rod or to push it along the rod, the bristles will flex to ride over the screw threaded surface of the rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.