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. 18, 1983
Filed:
Mar. 07, 1980
Applicant:
Inventor:
Wilhelm Steinhart, Friedberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
92 52 ; 92 59 ; 92 61 ; 228 / ;
Abstract
A friction-welding machine of the type in which a cylinder arrangement applies pressure to urge two workpieces together upon the rotation of one of the workpieces against the other to prepare the interface for bonding. The cylinder arrangement which applies the welding pressure comprises a main cylinder whose piston acts upon the workpiece through a head formed with an auxiliary cylinder and piston arrangement greatly increasing the working range of the cylinder arrangement.