Resilient pick shank
US8118371B2 · kind B2 · utility
43Cited by
116References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2009 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Mar 23, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/1833
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one aspect of the invention, a pick assembly comprises a pick shank press fitted within a bore of a pick holder. The pick comprises a pick head opposite the shank. The shank also comprises at least one longitudinal slot extending towards the pick head along the shank from a distal end of the shank. The slot allows the shank to resiliently collapse upon insertion into the bore while still allowing the shank to maintain a press fit while within the bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.