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:
Jan. 28, 1997
Filed:
Jul. 15, 1994
Applicant:
Inventor:
Charles W Duncan, Denison, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
254199 ; 254131 ;
Abstract
A stake puller (10) for use in removing a stake (4) lodged in the ground (2) utilizes a lever (12) and fulcrum (20) for mechanical advantage. The stake (4) is positioned between a blade means (30) fixed to the end of the lever and a back plate (40) pivotally attached to the blade means. When the user pivots the lever down, the stake is pinched between the forward edge (34) of the blade means (30) and the primary surface (42) of the back plate (40). The primary surface (42) is curved and diverges from the stake. This minimizes any bending or friction forces applied to the stake.