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.:

US 8444290 B1

PDF
Full Text
Expired
Date of Patent:
May. 21, 2013

Filed:

Apr. 12, 2011
Applicant:

Rainer Opolka, Solingen, DE;

Inventor:

Rainer Opolka, Solingen, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21L 4/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A flashlight has a casing extending along an axis and adapted to hold an electric power supply, a light source fixed at a front end of the casing and electrically energizable to emit an axially forwardly directed light beam, an annular head fitted to the casing and axially shiftable thereon. Stops engaged between the head and the casing limit axial travel of the head relative to the casing. A lens is fixed in the head so that the lens and head can be shifted to focus the light beam. Thus the lamp head is captively attached to the casing. This creates an extremely compact structure that can be assembled quickly, thereby allowing manufacturing costs to be reduced. In addition, damaged components can be replaced quickly and easily.


Find Patent Forward Citations

Opolka, Rainer. (2013). Focusable flashlight (U.S. Patent No. 8444290). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8444290

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

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