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:
Jan. 01, 2019
Filed:
Jul. 13, 2015
Applicant:
Scott Health & Safety Ltd., Skelmersdale, Lancashire, GB;
Inventors:
Robert Charles Sutton, Southport, GB;
Grant Stuart Richardson, Salisbury, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B 18/08 (2006.01); A62B 23/02 (2006.01); A62B 7/10 (2006.01); A62B 18/02 (2006.01);
U.S. Cl.
CPC ...
A62B 18/082 (2013.01); A62B 7/10 (2013.01); A62B 18/02 (2013.01); A62B 18/08 (2013.01); A62B 23/02 (2013.01);
Abstract
A respirator comprising an outer mask in which is defined a main volume and an oronasal mask located within the outer mask and defining a secondary volume. Air for breathing enters the mask via a one-way valve and filter. Exhaled air exits the mask via an exhale conduit fitted with an exhale valve. A conduit is provided for the passage of air from the outer mask to the oronasal mask. The conduit is fitted with a one-way valve and a filter. The filter is such as to filter either particular or vapor challenges, or a mixture of these, as required.