Positive pressure protective helmet

Details Positive pressure protective helmet Positive pressure protective helmet

2005-06-14

2005-06-14

Lindsey, Rodney M. (Department: 3765)

Apparel

Head coverings

With forced air circulator

C002S410000

Reexamination Certificate

active

06904616

ABSTRACT:
Protective helmet comprising a two piece shell, an electric motor and impeller useful for creating a positive environment in the head space, and a filter for removing particulates and other substances. The impeller introduces atmospheric air into an air channel defined by two detachably attached shell pieces. The air is pushed through a particulate filter in the air channel and then through at least one aperture into the head space. A heating element may be used to heat the air flow.

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