G - Physics – 01 – F
Patent
G - Physics
01
F
73/124
G01F 17/00 (2006.01)
Patent
CA 1223753
ABSTRACT OF THE DISCLOSURE This invention relates to a piston assembly which is particularly adapted for use in an inhalation device for the inhalation of air into human lungs. The device comprises a first hollow cylindrical chamber for slidably receiving a piston, the chamber being vented to the atmosphere; the piston assembly is movable within the cylindrical chamber. At least a second hollow chamber is sealed from fluid communication with the first chamber, the second chamber communicating with the atmosphere. A breathing tube assembly is adapted to be in communication with said first and second hollow chambers. Connecting means connect the breathing tube assembly with the first chamber and the second chamber for inhaling air from the first and the second chambers. A minor portion of the air comes from the first chamber and a major portion comes from the atmosphere through the second chamber.
503068
Chernak Milton
Greenberg Mishel
Smyers William H. Jr.
Bereskin & Parr
Chesebrough-Pond's Inc.
Sherwood Services Ag
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