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:
Mar. 02, 1976
Filed:
Sep. 09, 1974
Franz Arnold, Kempten, DT;
Peter Preisenhammer, Kempten-Lenzfried, DT;
Saurer-Allma GmbH, Allgaeuer Maschinenbau, Kempten, DT;
Abstract
A clamping device having a hollow spindle screwable in a stationary vise part and a pressure rod axially slidable in the hollow spindle for exerting clamping pressure. A mechanical or hydraulic power amplifier is arranged in a cylindrical housing connected to the hollow spindle. The secondary or driven member of the power amplifier acts onto a pressure rod. The primary member of the power amplifier is acted upon by a driving element which itself is arranged in a compressed air cylinder adjoining the power amplifier housing. An additional mechanical or hydraulic power amplifier is arranged in the compressed air cylinder between the compressed air piston and the aforementioned primary member.