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:
Jul. 01, 1980
Filed:
Apr. 20, 1978
Applicant:
Inventor:
Jens N Andresen, Sonderborg, DK;
Assignee:
Danfoss A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03G / ;
U.S. Cl.
CPC ...
60527 ; 60528 ;
Abstract
The invention relates to a piston and cylinder type servomotor having an expansible substance and a heating element in the cylinder part. The cylinder part is normally movable and may be connected to a valve or the like which is adjustably movable by the unit. The unit has under and over pressure limiting switches which are located in the force transmitting path of the piston part which is the normally nonmovable part but has a small degree of movement which allows it to interact with the pressure limiting switches.
Andresen, Jens. (1980). Servo motor operated by a heatable expansible substances (U.S. Patent No. 4209989). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4209989
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile