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:
Jun. 20, 1978
Filed:
Mar. 29, 1977
Applicant:
Inventors:
Franco Sartorio, Turin, IT;
Giorgio Minucciani, Moncalieri (Turin), IT;
Francesco Germano, Turin, IT;
Assignee:
Dea Digital Electronic Automation S.p.A., Moncalieri, Turin, IT;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2502 / ; 356169 ;
Abstract
A position transducer for machine tools and measuring machines, arranged to measure relative displacements of a first part of the machine with respect to a second part of the machine, is described. The main feature of this position transducer is to operate by means of the optical coupling of at least two photoelectric readers fixed on the first part and at least two optical photoengraved rules rigidly connected to the second part. Selector means are provided to present in output the signals from one of the photoelectric readers.