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. 09, 1991
Filed:
May. 24, 1990
Applicant:
Inventors:
Wallace R Aikens, Plano, TX (US);
Stephen A Sharp, Wilson, NY (US);
James K Stawitzky, North Tonawanda, NY (US);
Assignee:
Gulton Industries, Inc., Plano, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362 62 ; 362187 ; 362284 ; 362293 ;
Abstract
A portable incandescent light assembly having a selectably interposable filter is disclosed. The light assembly is particularly applicable to night vision situations for airplane pilots. The light assembly comprises a housing in which a light source and a filter for filtering out infra-red light are located. The light assembly further comprises a mechanism for rotating the filter within the housing between a filtering position in which the filter is disposed across a light output axis and a non-filtering position in which the filter is disposed parallel to the light output axis.