Ventilation unit which can be dressed like a tight suit or...

Details Ventilation unit which can be dressed like a tight suit or... Ventilation unit which can be dressed like a tight suit or...

2003-11-21

2010-06-08

McAllister, Steven B (Department: 3749)

Ventilation

Having inlet airway

Including specific cover or shield for exterior vent opening

C128S205220

Reexamination Certificate

active

07731575

ABSTRACT:
A ventilation unit includes a casing which has two openings and an electric connection passage, a filter cartridge, a turbine disposed inside the casing and having an input and an output and a motor, a duct linking the output to the outside area of the casing via the output, another casing with a passage created inside the wall, a control circuit and a source disposed inside the casing, elements for associating the two housings such that the passages form a single passage, a flow meter inside the duct. The control circuit includes an exit which can issue a first alarm signal when the electric energy value of the source falls below a threshold. The ventilation unit is suitable for the ventilation of nuclear protection suits, bacteriological protection suits or protective suits in hospital environments.

REFERENCES:
patent: 2512990 (1950-06-01), Akerman
patent: 2989049 (1961-06-01), Jean-Philippe
patent: 3045243 (1962-07-01), Lash et al.
patent: 3468299 (1969-09-01), Amato
patent: 4821709 (1989-04-01), Jensen
patent: 5577496 (1996-11-01), Blackwood et al.
patent: 5586861 (1996-12-01), Berger
patent: 6186140 (2001-02-01), Hoague
patent: 393 086 (1991-08-01), None
patent: 671 340 (1989-08-01), None
patent: 2 515 048 (1983-04-01), None
patent: 935 934 (1963-09-01), None
patent: WO 01/52675 (2001-07-01), None

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