Claims
- 1. An automatic air setting mechanism for controlling an air delivery system comprises:a shutter being placed proximate to the air delivery system; a first rod including a first end having a bimetallic coil and a second end having a heat setting handle; a first fork being positioned between the heat setting handle and the bimetallic coil; a second rod being provided over an outer end of the bimetallic coil so that when the bimetallic coil pulls the second rod upward, the shutter uncovers an end of the air delivery system; a stop being positioned above the second rod and preventing the bimetallic coil from raising the second rod beyond a highest position; a metal plate link connecting to the second rod at a distance from the stop, the metal plate link including a hole; a shutter actuating rod connecting the metal plate link and the shutter; a locking rod communicating with the metal plate link hole when a top end of the second rod is stopped against the stop and the shutter is at a maximum open position; a first collar being positioned on the locking rod and substantially close to the fork; a second collar being positioned on the locking rod and away from the first collar; a bimetallic unlocking coil being positioned proximate to the second collar, the bimetallic unlocking coil sensing at least one of (i) a temperature indicating the fuel is engaged in the combustion process and (ii) a pre-catalyst gas temperature; and a second fork connecting to the bimetallic unlocking coil and positioned proximate to the second collar; wherein rotation of the heat setting handle causes the fork to push the collar thus moving the locking rod into the hole and locking the shutter in the maximum open position, wherein after the locking rod is engaged in the hole, the heat setting handle is rotated in an opposite direction setting the bimetallic coil to a position that provides a predetermined heat output after the locking rod is pulled out of the hole, wherein after the bimetallic unlocking coil senses a predetermined temperature, the second fork pushes the second collar causing the locking rod to release the link so that the air delivery system maintains the predetermined heat output.
- 2. An automatic air setting mechanism for controlling an air delivery system in a combustion system comprises:controlling means for controlling an air passage of the air delivery system; locking means for locking the controlling means when the controlling means is at a maximum position; sensing means for sensing a temperature of a combustion chamber so that when the temperature reaches a predetermined value the locking means releases the controlling means.
- 3. The automatic air setting mechanism of claim 2, further comprising preventing means for preventing the controlling means from exceeding the maximum position prior to the locking means locking the controlling means.
- 4. The automatic air setting mechanism of claim 2, further comprising regulating means for regulating the controlling means when the controlling means is at a position other than the maximum position.
- 5. The automatic air setting mechanism of claim 2, further comprising setting means for setting the controlling means when the locking means releases the controlling means.
- 6. The automatic air setting mechanism of claim 5, wherein the setting means is manually operated and includes a thermostatic adjustment means for automatically controlling the controlling means in response to temperature changes.
- 7. The automatic air setting mechanism of claim 2, wherein the locking means and sensing means are formed from a single bimetallic element.
- 8. The automatic air setting mechanism of claim 2, wherein mechanical failure of the sensing means causes release of the locking means.
Parent Case Info
The present application is a continuation-in-part application of U.S. application Ser. No. 09/129,125 filed on Aug. 4, 1998 and now issued as U.S. Pat. No. 6,067,979
US Referenced Citations (6)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/129125 |
Aug 1998 |
US |
Child |
09/546603 |
|
US |