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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Varraux; Alan R.
Address:
Orlando, FL
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
4768520 Peak flow and pulmonary incentive meter September 6, 1988
An apparatus for measuring peak expiratory flow of a human patient and an incentive spirometer has a housing having a passageway and a mouthpiece connected to the passageway. An elongated slender rod extends through the passageway and has a sliding member a predetermined size slideably m
4424058 Drainage control method and apparatus January 3, 1984
A drainage control valve apparatus utilizes a pressure relief valve for opening upon a predetermined fluid pressure being applied thereto and a liquid column is used for holding the pressure relief valve open by the weight of the liquid column escaping past the pressure relief valve to










 
 
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