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. 17, 1987
Filed:
Sep. 14, 1984
Applicant:
Inventors:
Alan C Ferber, Hillside, IL (US);
Morteza M Chamran, deceased, late of Elmhurst, IL (US);
Assignee:
The Perkin-Elmer Corporation, Norwalk, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; G01R / ;
U.S. Cl.
CPC ...
364569 ; 356323 ; 364525 ;
Abstract
A timing system for a spectrophotometer having a line driven chopper including a rotating disc with alternate open and opaque segments, index apertures in the disc spaced at invariant angular relationship to one of the open segments for providing indexing pulses having fixed time relationship to the light segments, and a programmable microcomputer assembly for generating a string of timing pulses for timing spectrophotometer operations and adjusting the rate of the timing pulses to provide a fixed number between indexing pulses in fixed phase relationship thereto.