Ballard; Gary W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ballard; Gary W..The latest application filed is for "method and apparatus for operating a furnace from a 12v dc battery".
- Ballard; Gary W. - Plainfield IN
- Ballard; Gary W. - Indianapolis IN
| Patent | Date |
|---|---|
| Method and apparatus for operating a furnace from a 12V DC battery Grant 4,946,096 - Ballard , et al. August 7, 1 | 1990-08-07 |
| Control of energy use in a furnace Grant 4,891,004 - Ballard , et al. January 2, 1 | 1990-01-02 |
| Limit switch control method for a two-stage furnace Grant 4,887,767 - Thompson , et al. December 19, 1 | 1989-12-19 |
| Calibration technique for variable speed motors Grant 4,860,231 - Ballard , et al. August 22, 1 | 1989-08-22 |
| Gas valve shut off method and apparatus Grant 4,850,852 - Ballard July 25, 1 | 1989-07-25 |
| Control system for a furnace operating in the continuous blower mode Grant 4,815,524 - Dempsey , et al. March 28, 1 | 1989-03-28 |
| Self-correcting microprocessor control system and method for a furnace Grant 4,792,089 - Ballard December 20, 1 | 1988-12-20 |
| Gas furnace control system Grant 4,789,330 - Ballard , et al. December 6, 1 | 1988-12-06 |
| Self-correcting microprocessor control system and method for a furnace Grant 4,706,881 - Ballard November 17, 1 | 1987-11-17 |
| Method of limiting motor power output Grant 4,707,646 - Thompson , et al. November 17, 1 | 1987-11-17 |
| Method for providing variable output gas-fired furnace with a constant temperature rise and efficiency Grant 4,688,547 - Ballard , et al. August 25, 1 | 1987-08-25 |
| Adaptive blower motor controller Grant 4,648,551 - Thompson , et al. March 10, 1 | 1987-03-10 |
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