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. 16, 1993
Filed:
Nov. 22, 1991
Applicant:
Inventor:
Yoshiyuki Narisawa, Tokyo, JP;
Assignee:
Rion Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R / ; H01M / ;
U.S. Cl.
CPC ...
381 687 ; 381692 ; 429 86 ; 429 98 ; 429100 ;
Abstract
A receiving chamber for an air cell battery for use in an electronic device having a casing 2 in which a battery receiving chamber 11 having an open upper end is defined by a wall portion thereof comprises a cover member 13 for selectively closing the open end of the battery receiving chamber, a through-hole 31; 41 formed in the battery receiving chamber for communicating the battery receiving chamber externally, and filter means 32 provided in the through-hole for repelling the water content of air supplied through the through-hole to the battery receiving chamber while allowing air to pass through.