Automatic temperature and humidity regulation – Thermostatic – In fluid controlled
Patent
1991-04-11
1992-08-04
Tapolcai, William E.
Automatic temperature and humidity regulation
Thermostatic
In fluid controlled
236100, G05D 2302
Patent
active
051351633
ABSTRACT:
A thermostatically controlled three-way valve is provided with a valve actuating assembly containing a wax-type thermally responsive acutator that is mechanically separate from a valve assembly containing a valve poppet supported by a valve stem so as to facilitate the replacement of a dysfunctioning wax-type thermally responsive actuator. In the event such a problem occurs with the wax-type thermally responsive actuator due to the operation of the valve, a manual override mechanism employing a hollow threaded nut arrangement can be used to engage the valve stem and manually position the valve poppet to control fluid flow through the valve.
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