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. 15, 1991
Filed:
Mar. 24, 1989
Applicant:
Inventor:
Fritz Muller, 7118 Ingelfingen-Criesbach, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
92 135 ; 92 57 ;
Abstract
A piston drive such as a piston drive for actuating a valve includes a piston which reciprocates between two end positions which are defined by respective sleeve-shaped inserts projecting into the path of movement of the piston and being axially displaceable by respective worm drives. One insert with the pertaining worm drive is usable for emergency actuation while the other insert with the pertaining worm drive is usable for limiting the stroke of the piston.
Quick Actions:
Muller, Fritz. (1991). Piston drive (U.S. Patent No. 4984508). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4984508
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile