US3786859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature and humidity control and apparatus for residential buildings
Assignee: Individual
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Filing: 1972-06-19
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Granted: 1974-01-22
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Expires: 1992-06-19
Abstract
Abstract Apparatus and electrical control circuit is provided for control of temperature and humidity in residential structures. Heating and cooling of residences utilizes separate units for heating and cooling that are independently operable although both units are incorporated in a common air circulation system. A change-over type control system is provided to permit essentially seasonal operation as to either heating or cooling. The apparatus and electrical control circuit provided includes a humidity sensor and auxiliary heating means selectively operable in cooperation with the cooling unit to effect dehumidification irrespective of cooling requirements but maintaining a relatively constant temperature while continuing dehumidification.
Inventors
- 👤 W Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:55
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/62; F24F11/63; F24F11/65; F24F11/67; F24F11/70; F24F11/72; F24F11/74; F24F11/76; F24F11/80; F24F11/86; F24F11/88; F24F3/00; F24F3/12; F24F3/14; F24F3/153; F24F11/30; F24F2110/00; F24F2110/10; F24F2110/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
364 words
A temperature and humidity control and apparatus for a circulating air system comprising a fan drivingly coupled with an electric motor and interposed in the air stream for inducing circulation of air, air cooling means having a heat exchanger positioned in the air system and an electrical control, air heating means positioned in the air system in downstream relationship to said cooling means heat exchanger and including an electrical control, and control means including first and second temperature sensing means and humidity sensing means disposed in responsive relationship to the air circulated in the air system, each said sensing means having respective electrical switch means actuated in response to the respective parameter sensed, and electrical circuit means interconnected with each said electrical switch means, with said fan motor, cooling means electrical control and heating means electrical control for controlling operation thereof to maintain the temperature and humidity of the circulating air within respective predetermined ranges, the electrical switch means of said first temperature sensing means operatively connected in circuit with the electrical control of said cooling means and said fan motor and the electrical switch means of said second temperature sensing means operatively connected in circuit with the electrical control of said heating means, said first temperature sensing means operative to open its respective electrical switch means a first predetermined temperature and to close its respective switch means at a relatively higher temperature thereby defining a first predetermined temperature range, said second temperature sensing means operative to close its respective electrical switch means at a second predetermined temperature and to open its respective switch means at a relatively higher temperature thereby defining a second predetermined temperature range having the highest temperature thereof lower than the highest temperature of said first temperature range and the lowest temperature thereof lower than the lowest temperature of said first temperature range, and the electrical switch means of said humidity sensing means operatively connected in circuit with the electrical control of said cooling means and said fan motor, said humidity sensing means operative to energize the electrical control of said cooling means and said fan motor for operation thereof when the humidity is at or above a predetermined level.
Claim 2
Dependent Claim
364 words
A temperature and humidity control and apparatus for a circulating air system comprising a fan drivingly coupled with an electric motor and interposed in the air stream for inducing circulation of air, air cooling means having a heat exchanger positioned in the air system and an electrical control, air heating means positioned in the air system in downstream relationship to said cooling means heat exchanger and including an electrical control, and control means including first and second temperature sensing means and humidity sensing means disposed in responsive relationship to the air circulated in the air system, each said sensing means having respective electrical switch means actuated in response to the respective parameter sensed, and electrical circuit means interconnected with each said electrical switch means, with said fan motor, cooling means electrical control and heating means electrical control for controlling operation thereof to maintain the temperature and humidity of the circulating air within respective predetermined ranges, the electrical switch means of said first temperature sensing means operatively connected in circuit with the electrical control of said cooling means and said fan motor and the electrical switch means of said second temperature sensing means operatively connected in circuit with the electrical control of said heating means, said first temperature sensing means operative to open its respective electrical switch means a first predetermined temperature and to close its respective switch means at a relatively higher temperature thereby defining a first predetermined temperature range, said second temperature sensing means operative to close its respective electrical switch means at a second predetermined temperature and to open its respective switch means at a relatively higher temperature thereby defining a second predetermined temperature range having the highest temperature thereof lower than the highest temperature of said first temperature range and the lowest temperature thereof lower than the lowest temperature of said first temperature range, and the electrical switch means of said humidity sensing means operatively connected in circuit with the electrical control of said cooling means and said fan motor, said humidity sensing means operative to energize the electrical control of said cooling means and said fan motor for operation thereof when the humidity is at or above a predetermined level.
Claim 3
Dependent Claim
94 words
A temperature and humidity control and apparatus according to claim 1 including second air heating means positioned in the air system in upstream relationship to said cooling Means heat exchanger and including an electrical control, said control means including third temperature sensing means disposed in responsive relationship to the air circulated in the air system and which sensing means includes electrical switch means actuated in response to the temperature sensed, said last mentioned switch means interconnected by said electrical circuit means with the electrical control of said second heating means for controlling operation thereof.
Claim 4
Dependent Claim
69 words
A temperature and humidity control and apparatus according to claim 2 including fourth temperature sensing means having electrical switch means interconnected by said electrical circuit means to alternatively connect either the switch means of said third temperature sensing means or the switch means of said first and second temperature sensing means to a source of electrical power, said fourth temperature sensing means disposed in responsive relationship to ambient air.
Claim 5
Dependent Claim
60 words
A temperature and humidity control and apparatus according to claim 3 including humidification means positioned in the air system in downstream relationship to said second air heating means and having electrically energizable operating means, said operating means interconnected with the switch means of said humidity sensing means for energization thereof when the humidity is at or below a predetermined level.
Claim 6
Dependent Claim
45 words
A temperature and humidity control and apparatus according to claim 4 wherein said electrical circuit means includes an electrical interlock connected in circuit with the switch means of said humidity sensing means to prevent operation of said humidification means when said cooling means is operating.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |