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:
Dec. 27, 1988
Filed:
Aug. 20, 1987
James M Cummins, Jr, Dearborn, MI (US);
George Morrison, Jr, Dearborn, MI (US);
Robert E Pierfelice, Allen Park, MI (US);
Other;
Abstract
A face mask for use in cold weather to supply warm air for inhalation by normal breathing to persons having respiratory and heart ailments to avoid the discomfort, pain and limited mobility caused by breathing cold air and to healthy people engaged in strenuous cold weather activities. The face mask has inlet and outlet check valves and a cold air intake chamber with an electric heater element therein which heats the cold air to supply warm air for inhalation. The heater element is preferably powered by a portable battery pack and controlled by electronic circuitry to maintain the heated air in a predetermined temperature range.