Telescoping leg lock with thumb actuator
US7222827B2 · kind B2 · utility
11Cited by
124References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2003 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Aug 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/59
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A telescoping leg particularly adapted for use in supporting geomatic equipment is capable of locking in different selected positions of extension. A lock is provided for holding the leg at the selected position of extension. The lock is biased to a lock position, but is capable of being moved and retained in an unlock position by operation of a single thumb on one hand so that locking and unlocking the leg for telescoping movement occupies only one hand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.