Dispensing – Gas or vapor dispensing
Patent
1979-05-29
1981-01-06
Spar, Robert J.
Dispensing
Gas or vapor dispensing
12820418, 12820524, 222 44, B67D 522
Patent
active
042431557
ABSTRACT:
An inhalation apparatus comprising an automatic pressure regulator including a body having an opening for receiving the valve of an oxygen tank and an outlet for a hose extending from the outlet. A valve is attached to the hose and includes a manual control for selectively varying the volume of oxygen passing through the hose to an inhaling mask on the end of the hose. The pressure regulator body includes two chambers, a passage extending from one chamber to the other, and an inlet passage extending to one chamber. Each chamber has a diaphragm closing one wall thereof and a spring yieldingly urging the diaphragm in one direction. An orifice is associated with the inlet and an orifice is associated with the passage. A lever is pivoted adjacent its respective diaphragm and has one end thereof pivotally connected to its respective diaphragm and the other end thereof engaging a valve associated with the respective orifice. The lever is pivoted to the body by a pin extending through the lever and engaging recesses. Headed screws are threaded into the body to hold the pin in the recesses. A hose extends from the regulator and a manually controlled regulator valve is provided to selectively control the flow of oxygen from the regulator.
REFERENCES:
patent: 1142177 (1915-06-01), Kennedy
patent: 1494395 (1924-05-01), Wells
patent: 1569311 (1926-01-01), Barstow
patent: 2468483 (1949-04-01), Chambers et al.
patent: 2831607 (1958-04-01), Berndt
patent: 3547143 (1970-12-01), Mills, Jr.
patent: 3693653 (1972-09-01), Cramer et al.
patent: 4088131 (1978-05-01), Elam
patent: 4109828 (1978-08-01), Stewart
Oxygen Therapy Institute, Inc.
Silverberg Fred A.
Spar Robert J.
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