Position locking device for visor on a helmet
US4170792A · kind A · utility
26Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1977 |
| Grant date | Oct 16, 1979 |
| Priority date | — |
| Expiry date | Aug 12, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C11/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A positioning device, particularly applicable to positioning a visor on a helmet comprising a clutch output member, a datum member, and a clutch input member, the output member constrained to move along a particular path with respect to the datum member, usually an arcuate path, and the output member containing the input member and detent members at either side of the input member which lock the output member to the datum member until released only by movement of the input member which drives the output member to another locked position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.