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:
Apr. 06, 1976
Filed:
Jan. 24, 1974
Applicant:
Inventor:
Ernest W Cummings, Concord, TN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02G / ;
U.S. Cl.
CPC ...
173 49 ; 37193 ; 37DI / ; 61 726 ; 74 87 ; 172 40 ;
Abstract
An apparatus for facilitating penetration of a ground engaging member, such as a plowshare or fence post, into the ground is disclosed which employs a vibrator having a rotatable mass eccentrically mounted to provide a cyclical motion to the member being caused to penetrate the ground. The apparatus is adapted to independently vary the amplitude and frequency of the cyclical motion imparted to the ground engaging member to adjust for varying soil conditions. One embodiment employs a pair of interconnected balanced vibrators which produce a resultant force acting generally along the longitudinal axis of the ground engaging member.