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.

Date of Patent:
Dec. 05, 1989

Filed:

Dec. 30, 1985
Applicant:
Inventor:

Steven S Kendall, Davison, MI (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
173 94 ; 414724 ; 37DI / ; 173 46 ;
Abstract

A backhoe assembly (10) comprises a boom (12) for pivotal attachment to a machine (11). A bucket (14) is pivotally supported by the boom (12) for rotation about a support axis (16). A hydraulic cylinder (34) having a piston rod (36) raises and lowers the boom (12) and rotates the bucket (14) about the support axis (16) between an open and closed position. The assembly (10) is characterized by a hammer (20) supported in a cantilevered fashion for pivotal movement about the support axis (16) by the bucket (14) between a cocked position on a cocked side of an over-center position and a released free-fall position on the other side of the over-center position.


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