Automatic temperature and humidity regulation – Mixing fluid of dissimilar temperature – Fluid from only one supply is controlled
Patent
1996-06-21
1997-07-15
Tapolcai, William E.
Automatic temperature and humidity regulation
Mixing fluid of dissimilar temperature
Fluid from only one supply is controlled
236DIG2, G05D 2313
Patent
active
056475314
ABSTRACT:
A thermally responsive mixing valve assembly is provided that is suitable for use in supplying tempered water to an emergency shower or eyewash system. In one embodiment, the assembly includes a valve body defining hot and cold inlets, hot and cold chambers, a mixing chamber and an outlet. The valve body supports a plurality of thermostatic valves all in fluid communication with the hot and cold liquid chambers and the mixing chamber. Each of the valves includes a thermostat operable to stroke as shuttle valve within a valve liner. The valve liner includes a number of apertures in communication with the cold liquid chamber and a bore in communication with the hot liquid chamber. The shuttle valve modulates within the valve liner to restrict hot water flow through the hot liquid bore, but the flow of cold water through the apertures is unrestricted. The valve liner also includes cold bypass slots that are normally closed by the shuttle valve but that are opened upon a failure of the thermostat. A backseat valve is also provided to terminate hot water flow into the valve on thermostat failure.
REFERENCES:
patent: 2535893 (1950-12-01), Branson
patent: 2855151 (1958-10-01), Lesovsky
patent: 4475684 (1984-10-01), Garlick et al.
patent: 4923115 (1990-05-01), Sekoguchi et al.
patent: 5011074 (1991-04-01), Kline
patent: 5203496 (1993-04-01), Kline
patent: 5323960 (1994-06-01), Kline
patent: 5379936 (1995-01-01), Kline
Speakman Emergency Equipment Brochure, Speakman Company, pp. 34-37.
Guardian Equipment Emergency Eye Wash & Shower Equipment Brochure, Guardian Equipment, pp. 1-4, 6-7, 74-75.
Thermo-O-Mix Station All Weather Instant Tempered Water Supply Brochure, Thermo-O-Tech, Inc., Sep. 1995.
Streamline Catalog--Eye Wash, Portables, Eye/Face Wash, Drench Showers, Combination Units, Decontamination Models, Accessories, Western Emergency Equipment, 1993, --. 22.
Eye Wash/Showers Brochure, Lab Safety Supply, pp. 410-423.
Gregory Steven
Kline Kevin B.
Lawler Manufacturing
Tapolcai William E.
LandOfFree
Thermostatic control valve system for use in emergency shower an does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermostatic control valve system for use in emergency shower an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermostatic control valve system for use in emergency shower an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1486837