Patent · US Active

Resilient connection between a pick shank and block

US8646848B2 · kind B2 · utility

45Cited by

103References

16Claims

0Family size

Inventors

David R. Hall · Provo, US
Jeff Jepson · Spanish Fork, US
Gary Peterson · Provo, US
Ronald B. Crockett · Payson, US

Key dates

Filing date	Jun 28, 2011
Grant date	Feb 11, 2014
Priority date	—
Expiry date	Sep 11, 2031

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/1831
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In one aspect of the present invention, a pick assembly is configured that comprises a pick shank configured to be press fit directly within a bore of a block. The pick shank comprises an inside and outside surface. The pick comprises a pick head opposite the shank. The shank comprises at least one longitudinal recess extending towards the pick head along the shank from a distal end of the shank. The recess allows the shank to resiliently collapse upon insertion into the bore while maintaining a press fit between the bore and the shank.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.