초록 ▼

A pneumatic control system for controlling a pneumatically operated device in relation to the operation of a pneumatic signal sending thermostat and a pneumatic signal sending set point adjuster, the set point adjuster being adapted to direct its pneumatic signal to pneumatically operated temperatur

A pneumatic control system for controlling a pneumatically operated device in relation to the operation of a pneumatic signal sending thermostat and a pneumatic signal sending set point adjuster, the set point adjuster being adapted to direct its pneumatic signal to pneumatically operated temperature setting means of the thermostat to set the temperature sensor of the thermostat to a particular temperature thereof whereby a valve means of the thermostat is adapted to direct its pneumatic signal to the device to control the device in relation to the differential between the temperature sensed by the temperature sensor and the temperature setting thereof. The thermostat has an output chamber for directing its pneumatic signal and is disposed remote from the pneumatically operated temperature setting means thereof which is interconnected to the valve means by interconnection means, the temperature sensor being effectively interconnected to the interconnection means intermediate the valve means and the setting means. The set point adjuster has a temperature sensor for changing its setting in relation to sensed temperature thereof. The set point adjuster has a setting means that includes an adjustable spring member that also comprises the temperature sensor thereof.

대표청구항 ▼

In a pneumatic control system for controlling a pneumatically operated device in relation to the operation of a pneumatic signal sending thermostat and a pneumatic signal sending set point adjuster, said thermostat having a temperature sensor and a pneumatically operated temperature setting means th

In a pneumatic control system for controlling a pneumatically operated device in relation to the operation of a pneumatic signal sending thermostat and a pneumatic signal sending set point adjuster, said thermostat having a temperature sensor and a pneumatically operated temperature setting means therefor, said set point adjuster having means for directing its said pneumatic signal to said setting means to set said temperature sensor to a particular temperature setting thereof, said thermostat having an output chamber for directing its said pneumatic signal to said device to control said device in relation to the differential between the temperature sensed by said temperature sensor and said temperature setting thereof, said thermostat having valve means to create said pneumatic signal thereof and having interconnection means interconnected to said valve means, said temperature sensor being interconnected to said interconnection means, the improvement wherein said pneumatically operated temperature setting means of said thermostat is located remote from said output chamber thereof and is interconnected to said interconnection means outboard of said temperature sensor whereby said temperature sensor is effectively disposed intermediate said valve means and said pneumatically operated temperature setting means, said temperature sensor comprising a bimetal member, said setting means comprising a flexible diaphragm carried by said thermostat and being operatively interconnected to said bimetal member by said interconnection means, said valve means comprising a fixed valve seat carried by said thermostat and a movable valve member carried by said thermostat, said flexible diaphragm and said bimetal member being operatively interconnected to said valve member by said interconnection means.