The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1995
Filed:
Mar. 01, 1993
Darryl R Immel, Waterford, WI (US);
Andrew P Dretzka, Cudahy, WI (US);
Harvey J Kallenberger, Wind Lake, WI (US);
Harnischfeger Corporation, Milwaukee, WI (US);
Abstract
A digging tooth assembly has first and second wedged members retaining a digging tooth tip on a tooth base. The improvement comprises a tension member, e.g., a bolt, coupled to the first member and engaging the second member. The bolt has an adjustable effective length so that the first member can be drawn into wedged engagement with the second member. Other aspects of the invention involve a method for assembling a digging tooth assembly having an apertured tooth tip on an apertured, supporting tooth base. The method includes the steps of inserting a first wedge-like member into the aperture, inserting a second wedge-like member into the aperture and drawing the first member upward into wedged engagement with the second member.