B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
2/73.2, 137/1.52
B01D 50/00 (2006.01)
Patent
CA 1203734
ABSTRACT HELMET ADAPTED FOR USE BY HAY FEVER SUFFERERS A helmet 1 adapted for use by hay fever sufferers is shaped to fit over the head and face of the wearer and has filtered air supplied to its interior by way of an air supply duct 5 from portable filter means remote from the helmet and adapted to be carried by the wearer. The filter means removes pollen, dust and such airborne matter from the air supplied to the helmet. The filter means comprises disposable filters 9, a battery operated electric motor 8 and a fan 7 driven by the motor which draws air from the atmosphere through the filters and supplies it to the air supply duct 5. The battery 13 energising the motor is in a separate box 14 from a box 5 containing the filters, motor and fan. Both boxes are adapted to be attached to a belt to be worn by the helmet wearer. There may alternatively be just one pack. The helmet has supports 4 which seat on the wearer's shoulders.
433221
Hinchliffe Richard H.
Stewart & Kolash Ltd
LandOfFree
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