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. 10, 1983
Filed:
Jul. 17, 1980
Applicant:
Inventors:
Gulertan Vural, Emmelshausen, DE;
Udo Carle, Hohr-Grenzhausen, DE;
Assignee:
Koehring GmbH - Bomag Division, Bopard, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01C / ;
U.S. Cl.
CPC ...
404133 ; 404117 ;
Abstract
In a mass compensated impacting apparatus composed of at least one pair of impacting tools and a common tool carrier supporting the tools, there is provided a two-mass vibration excitation system associated with each tool and including vibrating masses which are positively linearly guided in an essentially non-resilient manner, and a unit driving the vibratory masses with phase relationships such that the resulting average of all mass forces becomes at least approximately zero.