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. 27, 2004
Filed:
Dec. 26, 2002
Applicant:
Inventors:
Richard R. Maki, Roseau, MN (US);
Joshua J. Leonard, Princeton, MN (US);
Robert E. Mekash, Roseau, MN (US);
Assignee:
Polaris Industries Inc., Medina, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A42C 5/04 ;
U.S. Cl.
CPC ...
A42C 5/04 ;
Abstract
Protective helmet comprising a two piece shell, an electric motor and impeller useful for creating a positive pressure environment in the head space, and a filter for removing particulates and other substances. The impeller introduces atmospheric air into an air channel defined by two detachably attached shell pieces. The air is pushed through a particulate filter in the air channel and then through at least one aperture into the head space. A heating element may be used to heat the air flow.