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:
Oct. 11, 1983
Filed:
Feb. 17, 1981
Applicant:
Inventors:
Hans Kuhn, Hamburg, DE;
Arno Viecenz, Quickborn, DE;
Assignee:
Koehring GmbH, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25D / ;
U.S. Cl.
CPC ...
173139 ; 173128 ; 267137 ;
Abstract
An impact transfer device for pile drivers is made as a one-piece steel unit defining a solid percussion part of a substantially cylindrical configuration with a convex impact surface capable of withstanding steel-on-steel impacts, an intermediate tubular part of substantially frusto-conical configuration integrally connected to the percussion part and a base ring integrally connected to the larger end of the intermediate tubular part having an annular support surface facing away from the impact surface.