Regulator structure and system

Details Regulator structure and system Regulator structure and system

A - Human Necessities

61

M

128/106

A61M 1/00 (2006.01) F16K 5/12 (2006.01) F16K 11/02 (2006.01)

Patent

CA 1046374

ABSTRACT A regulator for evacuation systems including hospital aspiration systems, such regulator being inexpensively manu- factured and assembled and providing a number of unique features. The subject regulator is designed to be essentially independent of altitude of operation or humidity conditions, may be made discretely or continuously variable, and also is provided with features reducing, if not eliminating, any noise of air drawn into the system for regulation purposes. An important feature of the invention is the provision of one or more metering aper- tures of reduced cross section such that possible error of ob- servable knob setting is reduced to an absolute minumum, thus eliminating the necessity of mechanical-adjustment calibration. Settings are essentially accurate for all altitudes, humidity conditions, and particular pumping parameters of existing vacuum systems. The particular metering apertures, above referenced, are serially related to a unique, slotted airway metering pattern designed to give wide versatility through extended permissible settings. Full-vacuum, and shut-off structural features are also provided.

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