Patent · US Active

Holder for a degradation assembly

US7338135B1 · kind B1 · utility

58Cited by

121References

15Claims

0Family size

Inventors

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

Key dates

Filing date	Aug 11, 2006
Grant date	Mar 4, 2008
Priority date	—
Expiry date	Aug 11, 2026

Classification

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

Abstract

In one aspect of the invention, a degradation assembly has an attack tool with a body and a shank, the body having a wear-resistant tip. The shank is disposed within a bore of a holder secured to a driving mechanism. The bore of the holder comprises an inner surface comprising a hardness greater than 58 HRc.

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