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.

Date of Patent:
Aug. 08, 1995

Filed:

Sep. 08, 1993
Applicant:
Inventor:

M Edmund Ellion, Santa Ynez, CA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21L / ; F21M / ;
U.S. Cl.
CPC ...
362188 ; 362212 ; 362213 ; 362350 ;
Abstract

A unique two filament flashlight lamp in which one filament is energized to produce a spot beam and the second filament is energized to produce a broad beam. A spot beam is formed when the filament is energized whose axis is perpendicular to the reflector axis and whose center is at the reflector focal point, a broad beam is formed when the second filament is energized whose axis coincides with the reflector axis and has one end located close to the focal point. In the second embodiment, a lamp having a single filament whose center is located at the reflector focal point and whose axis is perpendicular to the reflector axis will produce a spot beam. The lamp and filament can be reoriented so that the filament axis coincides with the reflector axis and one end of the filament is close to the reflector focal point to produce a broad beam.


Find Patent Forward Citations

Ellion, M. (1995). Flashlight lamp configuration to produce either a spot or broad beam (U.S. Patent No. 5440463). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5440463

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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