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:
Jul. 25, 1978
Filed:
Dec. 01, 1975
Applicant:
Inventors:
Richard A Sanford, Bartlesville, OK (US);
Edwin K Clardy, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
250562 ; 356200 ; 356238 ; 250572 ;
Abstract
Analysis of the reflectance characteristics of a surface such as a sample of knitted fabric utilizes one or more photosensitive detector means to scan the surface and to automatically produce at least one surface quality signal in response to the reflective characteristics of the surface. In preferred embodiments of the invention a modulated light source is used to illuminate the surface in order to minimize the effect of ambient lighting conditions, and a plurality of detector means are used to obtain a more accurate representation of the quality of the surface being scanned.