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. 09, 2019
Filed:
Jun. 13, 2014
Applicant:
Oceanit Laboratories, Inc., Honolulu, HI (US);
Inventors:
Christopher Sullivan, Honolulu, HI (US);
Daniel Kokubun, Waipahu, HI (US);
Assignee:
Oceanit Laboratories, Inc., Honolulu, HI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62B 7/00 (2006.01); A61F 11/14 (2006.01); B63C 11/22 (2006.01); A62B 7/10 (2006.01); A62B 17/04 (2006.01); A62B 17/00 (2006.01); A62B 7/14 (2006.01); A61F 9/06 (2006.01);
U.S. Cl.
CPC ...
A61F 11/14 (2013.01); A61F 9/068 (2013.01); A62B 7/10 (2013.01); A62B 7/14 (2013.01); A62B 17/003 (2013.01); A62B 17/04 (2013.01); B63C 11/2227 (2013.01);
Abstract
Noise reduction in face masks and helmets reduces ear damage and improves communication by reducing noise in demand regulators with air diffuser perforated plates, screens or open cell foam and by providing muffling chambers. Insertable earmuffs are slid into voids formed in interior padding. Oral-nasal masks are isolated from helmet padding. Various layered helmets shells and padding reduce internal noise.