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. 19, 1980
Filed:
Sep. 28, 1978
Applicant:
Inventors:
John C Evans, Midland, MI (US);
Edwin L Wittbrodt, Auburn, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47G / ; G01B / ;
U.S. Cl.
CPC ...
156 64 ; 427 10 ;
Abstract
The distribution of a coating composition, e.g., a binder composition, on a carpet structure is determined by illuminating the coated carpet surface with light and measuring the intensity of the light returned therefrom. The intensity of the returned light relates to the distribution, i.e., (1) the amount of the illuminated surface which is coated and (2) the depth of said coating, of the coating on the carpet structure.