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:
Feb. 29, 2000
Filed:
Oct. 23, 1998
Applicant:
Inventors:
Josef Maier, Wadem, DE;
Andreas Schmidt, deceased, late of Marpingen, DE;
Assignee:
Thyssen Industrie AG, , US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72312 ; 72323 ;
Abstract
A device for hemming of sheet metals, particularly of coachwork sheet metals in automobile manufacture, wherein a driven ram with superposed hemming bed arranged in a base rack presses the sheet metals to be hemmed against stationary hemming tools. The working stroke and the force for hemming of sheet metals is pneumatically transmitted to ram by the aid of a compressed-air cushion arranged between base rack and ram.