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:
Dec. 30, 1980
Filed:
Mar. 08, 1979
Applicant:
Inventor:
Wolfgang Nonnenmann, Pforzheim, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 12 ; 310 14 ; 310 13 ; 310 27 ;
Abstract
A preferred form of embodiment of the final control element comprises a direct-current electromagnet, with whose armature the regulator rod is connected; an inductive displacement transducer generating an electric output signal proportional to the stroke and having a pickup spool and a transducer rod connected to the regulator rod and influencing the inductivity of the pick-up spool in a stroke-proportional manner; and a restoring spring embodied as a helical compression spring, whose stroke-proportional restoring force acts counter to the attracting force of the magnet, which is proportional to the exciter current.