Pumps – Motor driven – Spring or weight motor
Patent
1973-10-02
1976-01-13
Husar, C. J.
Pumps
Motor driven
Spring or weight motor
417395, 417473, 1281456, F04B 1700, F04B 4306, F04B 4502
Patent
active
039320669
ABSTRACT:
A cylinder for delivering at limited positive pressure a preselected limited volume of breathing gas at a preselected limited flow rate. The cylinder includes a cylindrical housing which is substantially closed to the atmosphere. A drive weight is movably mounted within the cylinder, with a rolling diaphragm being connected between the wall of the cylinder and the weight to divide the cylinder into upper and lower chambers. A vacuum source is connected to the upper chamber to draw the weight and diaphragm upwardly, expanding and drawing breathing gas into the lower chamber. By controllably releasing the vacuum in the upper chamber, the weight is allowed to fall downwardly, solely under the force of gravity, to cause the lower chamber to contract. This creates a positive pressure in the lower chamber, forcing the breathing gas out of an outlet for delivery to a patient. The weight is slidably mounted on a hollow tube which extends axially through the housing, and a follower chain connected to the weight passes through the tube to an external indicator. The tube may be slotted to accomodate a connection between the follower and the weight to provide a positive indication of the exact location of the weight, and a bellows arrangement is provided to seal the upper and lower chambers from the area occupied by the tube.
REFERENCES:
patent: 983729 (1911-02-01), Laidley
patent: 2828694 (1958-04-01), Nallinger
patent: 3242952 (1966-03-01), Austin
patent: 3294030 (1966-12-01), Fox
patent: 3724973 (1973-04-01), Shill
Brown Allen C.
Eyrick Theodore B.
Chemetron Corporation
Gluck Richard E.
Husar C. J.
LandOfFree
Breathing gas delivery cylinder for respirators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Breathing gas delivery cylinder for respirators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Breathing gas delivery cylinder for respirators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-743662