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:
Dec. 03, 1991
Filed:
Mar. 21, 1990
Francis G Marshall, Meriden, CT (US);
The Bridgeport Metal Goods Mfg. Co., Bridgeport, CT (US);
Abstract
A pen-size flashlight comprises a tubular body receiving two size AAAA batteries and having a bulb and bulb contact assembly mounted on the forward end and a switch assembly driven by a rotatable cap on the rear end. The bulb contact assembly is removable for changing batteries and includes a bulb holder threadably secured to the tubular body and mounting a bulb, an insulator mounted to the bulb holder and defining an opening extending from the bulb tip terminal toward the front battery terminal and a dual diameter coil spring extending through the insulator to electrically connect the bulb tip terminal and the front battery terminal. The switch assembly includes a switch housing defining a threaded opening extending rearwardly from the rear battery terminal and a switch plunger threadably received in the switch housing opening. A switch driver sleeve is mounted for rotation about the switch housing and a cap is fitted over the switch driver sleeve and switch assembly. The switch driver sleeve engages the switch plunger such that rotation of the cap relative to the tubular body rotates the switch plunger in and out of contact with the rear battery terminal to turn the flashlight ON and OFF. The switch driver sleeve accommodates axial movement of the switch plunger without imparting that axial movement to the cap.