Title: Ripper tip assembly

Abstract: A ripper of an earthworking apparatus includes a shank with a tapered, forwardly projecting lower end portion that has a blunt extremity, a detachable hollow shin protector which embraces the lower end portion of the shank, both to reinforce said lower end portion and to transfer some ripping forces to the upper portion of the shank which is stronger than the tapered lower end portion, and a one-piece detachable ripper tip which has a rearward mounting stub provided with spaced control surfaces that abut mating control surfaces on the shank and/or the shin protector to positively position the ripper tip and to transfer certain ripping forces through the shin protector to the upper portion of the shank.

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Inventors: Wirt, Leon A. (Joliet, IL, US)
Rhoads, Kenneth A. (East Peoria, IL, US)

Application Number: 520241
Filing Date: 1974-11-04
Publication_date: 1977-03-22
Assignee: Caterpillar Tractor Co. (Peoria, IL)
Primary Class(es): 172/719 37/453, 172/713
Other Classes:
US Patent Ref:

2847921	Aug, 1958	Heckathorn	172/713.
3098532	Jul, 1963	Dobbratz et al.	172/719.
3203488	Aug, 1965	Eastwood	172/713.
3536147	Oct, 1970	Norton et al.	172/719.
3585741	Jun, 1971	Heusler	172/713.
3897642	Aug, 1975	Helton et al.	172/713.

Other Refs:
Primary Examiner: Marlo, George J.
Assistant Examiner:
Attorney: Wegner, Stellman, McCord, Wiles & Wood