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. 23, 1979
Filed:
Jul. 18, 1977
Applicant:
Inventor:
Brian J Scott, Saffron Walden, GB;
Assignee:
International Standard Electric Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G05I / ;
U.S. Cl.
CPC ...
318677 ; 318679 ; 330 / ;
Abstract
A process controller for diameter control in drawing optical fibre preforms consists essentially of the parallel arrangement of two output amplifiers, one providing low gain at low .+-. input voltages, while the other has high gain at high .+-. input voltages and effectively zero gain at low .+-. input voltages.