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:
May. 15, 1990
Filed:
Oct. 23, 1989
Applicant:
Inventor:
Reed H Grundy, Murrysville, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ; C03B / ; C03C / ;
U.S. Cl.
CPC ...
65 29 ; 65-31 ; 65 101 ; 65161 ; 34 89 ; 324694 ;
Abstract
A method and apparatus constructed to measure the fluid present in a multifilament or fiber strand moving at high speed is described and involves conductive contact points along the strand path which contact the strand and generate signals. The signals which are conductance measurements are synchronously demodulated to produce a signal representing the volume of fluid in the strand.