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. 30, 1976
Filed:
Jul. 11, 1974
Applicant:
Inventor:
Leonard F Peyser, Briarcliff Manor, NY (US);
Assignee:
The Machlett Laboratories, Inc., Stamford, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
250513 ; 250511 ;
Abstract
A radiation limiting shutter device including a hollow, frusto-pyramidal structure having relatively movable walls made of radiation absorbent material and defining an entrance aperture of a desired size, each of the walls comprising a frusto-triangular plate having serrated sloped edges which intermesh with similar sloped edges of respective adjacent plates forming the structure.