Surgery – Respiratory method or device – Including body or head supported means covering user's scalp
Patent
1980-08-07
1986-04-22
Nerbun, Peter
Surgery
Respiratory method or device
Including body or head supported means covering user's scalp
12820528, 2 7, 2205, 2206, A62B 700
Patent
active
045835357
ABSTRACT:
A protection mask is provided comprising a flexible hood having a head opening for placing said hood over the head of a wearer, said hood being made of transparent plastic for allowing the wearer to see through the walls thereof, means for gathering the head opening of said hood around the neck of the wearer, said hood having an inhale opening in the walls thereof located in the vicinity of the mouth of the wearer, filtering means covering said inhale opening for filtering air entering through said opening, and check valve means through the walls of said hood for allowing air to exit from said hood when the wearer exhales and for closing when the wearer inhales outside air through said filtering means.
REFERENCES:
patent: 148868 (1874-03-01), Barton
patent: 1827028 (1931-10-01), Malcom
patent: 2029129 (1936-01-01), Schwartz
patent: 2160317 (1939-05-01), Schwartz
patent: 2583304 (1952-01-01), Pipher
patent: 3562813 (1971-02-01), Origer
patent: 3789839 (1974-02-01), Lund et al.
patent: 4231118 (1980-11-01), Nakagawa
LandOfFree
Protection mask does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Protection mask, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection mask will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1910235