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:
Feb. 26, 1980
Filed:
Sep. 25, 1978
Applicant:
Inventor:
Erich Loepfe, Zollikerberg, CH;
Assignee:
Aktiengesellschaft Gebruder Loepfe, Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ;
U.S. Cl.
CPC ...
3314 / ; 3314 / ; 3314 / ; 73160 ;
Abstract
Novel method and device for measuring instantaneous changes of the thickness or diameter of travelling yarns and similar structures. The devices comprise sensing means provided with a pair of members contacting the yarn, with one of the members spring loaded toward the other. The distance or the variation of the distance between the contacting members when the yarn travels is detected by a transducer, e.g. of the capacitive type, and translated into electrical sensing signals.