Automatic temperature and humidity regulation – Mixing fluid of dissimilar temperature – Having oscillating or reciprocating valve
Reexamination Certificate
2008-03-18
2008-03-18
Tapolcai, William E. (Department: 3744)
Automatic temperature and humidity regulation
Mixing fluid of dissimilar temperature
Having oscillating or reciprocating valve
Reexamination Certificate
active
11133033
ABSTRACT:
A dual-function valve with pressure adjustment and temperature control functions comprises a valve body having a first cool water inlet, a first hot water inlet, two first mixing water outlets, a first chamber and a second chamber; the first chamber and second chamber being communicated by a second cool water channel and a second hot water channel; the second chamber being communicated to the first mixing water outlets through a water outlet channel; a pressure balance device for adjusting the water pressures of hot water and cool water; the pressure balance device being installed in the first chamber; and a temperature control device installed in the second chamber; the temperature control device adjusting the amount of water flowing into the second chamber by expansion and contraction of the mixing water of hot water and cold water; and the temperature control device being connected to the first chamber in parallel.
REFERENCES:
patent: 2657860 (1953-11-01), Schmidt et al.
patent: 5033671 (1991-07-01), Shiba et al.
patent: 5129576 (1992-07-01), Pullen et al.
patent: 5340018 (1994-08-01), MacDonald
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