Surgery – Respiratory method or device – Including body or head supported means covering user's scalp
Patent
1980-03-07
1981-07-28
Recla, Henry J.
Surgery
Respiratory method or device
Including body or head supported means covering user's scalp
12820125, 21713, A61F 906
Patent
active
042804914
ABSTRACT:
A powered air respirator which provides hardhat (safety helmet), respiratory, eye and face protection and comprises a hardhat, a shell member spaced from and overlying the hardhat, air filtering means in the space between the shell member and the hardhat, a face shield assembly attached to and depending from the front of the shell member, a transparent face shield in said face shield assembly, face sealing means on the peripheral edge of said face shield assembly to seal against a user's face from temple to temple and an air circulating means located in the rear portion of the shell member is disclosed.
REFERENCES:
patent: 3223086 (1965-12-01), Denton
patent: 3413972 (1968-12-01), Depping
patent: 3736927 (1973-06-01), Misaqi
patent: 3822698 (1974-07-01), Guy
patent: 3963021 (1976-06-01), Bancroft
patent: 4133308 (1979-01-01), Lowe et al.
patent: 4136688 (1979-01-01), Gorman
Berg Richard C.
Kvall Emil J.
Alexander Cruzan
Minnesota Mining and Manufacturing Company
Okubo Edward T.
Recla Henry J.
Sell Donald M.
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