Patent ID: 7383901
Filing Date: 2008-06-10
Classification: E02F,E21B

Abstract:
1. An auger tooth assembly comprising a releasable auger tooth, a holder element, and a shock-absorbing element in contact with and detachably interposable between the tooth and the holder element in at least a direction perpendicular to a leading edge of the tooth and which, when the said tooth is received in a recess of the said holder element, at least in part prevents shock imparted to the said tooth from being transmitted to the said holder element, wherein the shock-absorbing element is detachably mountable on a rear-facing wall of the tooth to space a trailing end of the tooth in the recess of the holder element from an adjacent wall of the recess of the holder element, further comprising a pin element which, when the said tooth is received in the said recess of the said holder element, prevents or limits unintentional separation of the said tooth and the said holder element.