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:
Jul. 11, 2000
Filed:
Nov. 09, 1998
Applicant:
Inventors:
Frank Hermansen, Corona Del Mar, CA (US);
Carl Winefordner, Corona Del Mar, CA (US);
Robert Wintner, Kingston, WA (US);
Assignee:
Water Sports Distributing Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63C / ;
U.S. Cl.
CPC ...
12820111 ; 12820127 ; 12820128 ;
Abstract
A dual channel snorkel promotes cleaner air by substantially separating fresh air from used air. An upper valve comprises a pair of flexible material flaps which nominally permit flow only in opposite directions through the respective channels. However, when necessary for purging water, a strong exhalation will open both flaps upwardly to permit removal of water from both channels. The illustrated embodiment also comprises a lower valve and a splash guard.