Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1978-05-08
1980-11-18
Recla, Henry J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820525, 128912, A62B 710
Patent
active
042339723
ABSTRACT:
A battery operated filter blower unit is arranged to be supported on the person and has connection by a flexible conduit to face pieces such as masks worn by the person, thus allowing a person wearing the filtering device to move about freely. The filter blower unit has universal use with substantially all face pieces. For example, it can be used with a safety mask arranged to be removably supported on a head band having a front opening which is substantially perpendicular to the safety mask whereby ejected air diffuses in all directions against the mask to prevent polluted air from being drawn in around the mask. The mask preferably is turned rearwardly at the sides as well as at the top and bottom to provide a good diffusion of air. The filter blower unit has universal use in that it can be connected to respirator face masks of conventional use or to oxygen type face masks also of conventional use. The filter arrangement in the blower unit is such that conventional respirator face mask filters and holders can be used.
REFERENCES:
patent: 1050718 (1913-01-01), Brewster
patent: 2100374 (1937-11-01), Biever
patent: 2332662 (1943-10-01), Nathanson
patent: 2642061 (1953-06-01), Boyer
patent: 2744525 (1956-05-01), Whipple
patent: 2818066 (1957-12-01), Glidden
patent: 3657740 (1972-04-01), Cialone
patent: 4127122 (1978-11-01), Kienhofer
Hauff Wolfgang
Tidland John W.
Eckelman Eugene M.
Recla Henry J.
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