Fluid handling – Self-proportioning or correlating systems – Supply and exhaust type
Patent
1992-12-22
1993-11-30
Nilson, Robert G.
Fluid handling
Self-proportioning or correlating systems
Supply and exhaust type
13762414, 251 65, 604120, G05D 1606
Patent
active
052656381
ABSTRACT:
An intermittent suction device for removing fluids from a patient where the duty cycle between the OFF and ON cycles is controlled by a magnetically susceptible diaphragm that switches back and forth between first and second positions, representing ON and OFF positions, by controlling the differential pressure across the diaphragm. The diaphragm is biased toward it first position by a permanent magnet that acts to attract the flexible diaphragm. The device has few moving parts and its duty cycle and overall cycle times are easily adjusted by the user.
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Fischer Russell J.
Leshner Michael D.
Tobia Ronald L.
BOC Health Care, Inc.
Cassett Larry R.
Nilson Robert G.
Rathbun Roger M.
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