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:
Aug. 08, 2000
Filed:
Oct. 01, 1998
Applicant:
Inventors:
Gerhard Thorwart, Filderstadt, DE;
Albrecht Wagner, Winterbach, DE;
Assignee:
Festo AG & Co, Esslingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
92 68 ; 92 65 ; 92121 ; 92136 ;
Abstract
A rotary linear unit possesses a rotary drive and a linear drive. A bearing rod is connected with the drive shaft of the rotary drive, such bearing rod extending coaxially into the output drive unit of the linear drive. On the bearing rod a bearing sleeve is mounted so that it may not rotate while being axially displaceable, such sleeve being fixedly connected with the piston of the linear drive. The piston is divided into two axially sequential piston parts, between which the bearing sleeve is located, which extends into facing receiving recesses in the piston parts.