Sonic latch mechanism
US8668029B2 · kind B2 · utility
0Cited by
15References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2012 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Sep 11, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B25/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A head assembly includes a body, a spearhead operatively associated with the body and configured to translate axially relative to the body, and at least one latch operatively associated with the spearhead and the body. The latch is configured to move between an extended position and a retracted position relative to the body in response to axial translation of the spearhead relative to the body. In an extended position, the latch covers more than 25% of the circumference of the body adjacent the latches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.