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US 2012/0055484 A1Published application
Ventilator
OwnerGeoffrey Mark Shaw, Geoffrey Anders +1inventors
InventorsGeoffrey Mark Shaw, Geoffrey Anders, Lawrence Gordon Alloo
Life of this patent
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Abstract
A ventilator which includes: at least one pair of reciprocating opposed gas moving means, the internal volume of which is arranged to be reduced and enlarged by a balanced drive, said gas moving means being arranged to move gas at a predetermined pressure and/or volume to a delivery tube; control means for regulating the speed and the distance of movement of the drive; wherein the masses of all moving parts are balanced so as to minimise the vibration of the ventilator in use.
Claims15
A ventilator which includes:
- at least one pair of reciprocating opposed gas moving means, the internal volume of which is arranged to be reduced and enlarged by a balanced drive, said gas moving means being arranged to move gas at a predetermined pressure and/or volume to a delivery tube;
- control means for regulating the speed and the distance of movement of the drive;
- wherein the masses of all moving parts are balanced so as to minimise the vibration of the ventilator in use.
Dependencies are inferred from the claim text.