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:
Aug. 17, 1999
Filed:
Jan. 26, 1998
Applicant:
Inventors:
Haruo Kawashima, Tokyo, JP;
Kenji Kawana, Tokyo, JP;
Assignee:
Tabata Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62B / ;
U.S. Cl.
CPC ...
12820111 ; 12820524 ;
Abstract
A bottom of a mouthpiece 2 of a snorkel comprises a first base plate 16 having through-holes 22 for drainage and against which a non-return valve 7 bears from the outside, second base plates 17 spaced from the first base plate 16 toward a top of the snorkel so as to cover the through-holes and supports 18 extending between the first plate 16 and each of the second base plates 17. The interior of the mouthpiece 2 drainably communicates with the exterior thereof through openings defined between the first base plate 16 and each of the second base plates 17 and the through-holes 22, when the non-return valve 7 is opened.