Vaporizer interlock
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United States of America Patent
Stats
-
Dec 29, 1981
Grant Date -
N/A
app pub date -
Feb 1, 1980
filing date -
Feb 1, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An interlock device for a pair of vaporizers of an anesthesia machine. Each vaporizer includes a rotary dial for establishing the vapor concentration provided. The interlock device insures that one vaporizer is closed whenever the other is open and comprises a pair of reciprocable pins and a cooperating pivotable lever. Each pin is arranged to be extended into a cam recess in the vaporizer dial by the pivoting action of the lever. Rotation of one dial automatically causes the pin located therein to move out of the cam recess and into contact with the lever. This action pivots the lever and causes it to contact the other pin to extend the other pin into the recess in the associated vaporizer dial, thereby locking the dial closed.
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