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:
Feb. 05, 1991
Filed:
May. 21, 1990
Applicant:
Inventor:
Robert G Tiller, Auburn, NY (US);
Assignee:
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21L / ;
U.S. Cl.
CPC ...
362183 ; 362109 ;
Abstract
An end cap for a rechargeable battery apparatus such as medical diagnostic instruments has a built-in diode arranged in series contact with the rechargeable NiCad battery so that current can flow in the battery charging direction only and the battery can not be discharged by shorting of the charging contact to the case.
Tiller, Robert. (1991). End cap for rechargeable battery instrument handle (U.S. Patent No. 4991069). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4991069
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile