Boots – shoes – and leggings
Patent
1994-02-09
1995-11-14
Cosimano, Edward R.
Boots, shoes, and leggings
621766, 236 44C, F24F 1100
Patent
active
054672872
ABSTRACT:
A method and apparatus for controlling an environmental parameter is disclosed. The apparatus includes a source of energy controlled air and a source of external air. A damper determines the amount of external air and energy controlled air provided to the room. A control circuit controls the position of the damper in response to an enthalpy calculator. The enthalpy calculator includes a temperature sensitive resistor having a resistance RT and a relative humidity sensitive capacitor wherein the capacitance of the relative humidity sensitive capacitor is CS. An electronic circuit includes RT and CS and provides an output h: ##EQU1## The method includes the steps of providing energy controlled air and external air. The temperature and humidity of the external air are sensed, and the enthalpy is calculated using the equation ##EQU2## where t is the temperature and RH is the relative humidity. The amount of external air provided is adjusted using the calculated enthalpy as a parameter.
REFERENCES:
patent: 2837286 (1958-06-01), Ross
patent: 3181791 (1965-05-01), Axelrod
patent: 3284615 (1966-11-01), Yetter
patent: 3469412 (1969-09-01), Giuffre
patent: 4086781 (1978-05-01), Brody et al.
patent: 4205381 (1980-05-01), Games et al.
patent: 4353409 (1982-10-01), Saunders et al.
patent: 4362026 (1982-12-01), Miller
patent: 4379484 (1983-04-01), Lom et al.
patent: 4517810 (1985-05-01), Foley et al.
patent: 4672560 (1987-06-01), Katayama et al.
patent: 5369597 (1994-11-01), Bujak, Jr.
Rudich, Jr. George
Wenner Ronald J.
Cosimano Edward R.
Johnson Service Company
LandOfFree
Enthalpy calculator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Enthalpy calculator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enthalpy calculator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1225658