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:
Mar. 12, 1991
Filed:
Dec. 04, 1989
Applicant:
Inventor:
Richard R Zito, Sunnyvale, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250574 ; 356336 ;
Abstract
An optical method of detecting impurities in powders. The detector employs a laser (10) as a source of radiation which impinges upon a stream of powder and impurities as they are blown through a clear glass tube (14). The scattered radiation then stimulates photoresistors (18) so as to produce a signal which can be displayed and recorded on a chart recorder or computer display device (26).
Zito, Richard. (1991). Optical powder impurity detector (U.S. Patent No. 4999512). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4999512
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile