US3703086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature-regulating system in apparatuses for maintaining temperature constant
Assignee: Naniwa Sangyo Co Ltd
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Filing: 1971-02-11
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Granted: 1972-11-21
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Expires: 1991-02-11
Abstract
Abstract A temperature-regulating system in apparatuses for maintaining temperature constant such as domestic refrigerators, usual refrigerators, heating apparatuses for living rooms, air conditioning apparatuses or the like wherein a heat-exchanger regulating apparatus or machine is initiated and stopped differentially at the points of time when a first temperaturedetecting device attached to a heat-exchanger detects a first predetermined temperature and when any one of a second temperature-detecting device provided outside said heat-exchanger detects a second or third predetermined temperature so as to maintain a desired constant temperature. Changes in the atmospheric temperature is compensated well owing to the presence of said third temperature-detecting device whereby said desired constant temperature is always maintained automatically.
Inventors
- 👤 Kiyoichi Nijo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:46
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/02; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1906; G05D23/1909; G05D23/1912; G05D23/1927; G05D23/193; G05D23/1931; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
264 words
In a temperature-regulating apparatus, a heat exchanger providing a flow path for a heat exchanging medium and having a medium inlet and a medium outlet, means for supplying a heat exchanging medium to the heat exchanger for changing the temperature of the heat exchanger, first temperature sensing means mounted on the heat exchanger at a first location for sensing the temperature of the heat exchanger at the first location, second temperature sensing means mounted on the heat exchanger at a second location for sensing the temperature of the heat exchanger at the second location, third temperature sensing means spaced from the heat exchanger for sensing the temperature at a third location away from the heat exchanger, and an electrical control circuit connected to the first, second and third temperature sensing means, each of the temperature sensing means including means for varying the electric current flowing through the electrical control circuit when the temperature sensing means senses a predetermined temperature associated with that temperature sensing means, the electrical control circuit containing means responsive to variation in the electric current flowing through the circuit for opening and closing the circuit, the circuit being opened when the first temperature sensing means senses its associated predetermined temperature and either the second or the third temperature sensing means senses it associated predetermined temperature whereby power to the mediumsupplying means is shut off, the circuit being closed when either the second or third temperature sensing means senses its associated predetermined temperature and the first temperature sensing means senses its associated predetermined temperature whereby power is supplied to the medium-supplying means.
Claim 2
Dependent Claim
264 words
In a temperature-regulating apparatus, a heat exchanger providing a flow path for a heat exchanging medium and having a medium inlet and a medium outlet, means for supplying a heat exchanging medium to the heat exchanger for changing the temperature of the heat exchanger, first temperature sensing means mounted on the heat exchanger at a first location for sensing the temperature of the heat exchanger at the first location, second temperature sensing means mounted on the heat exchanger at a second location for sensing the temperature of the heat exchanger at the second location, third temperature sensing means spaced from the heat exchanger for sensing the temperature at a third location away from the heat exchanger, and an electrical control circuit connected to the first, second and third temperature sensing means, each of the temperature sensing means including means for varying the electric current flowing through the electrical control circuit when the temperature sensing means senses a predetermined temperature associated with that temperature sensing means, the electrical control circuit containing means responsive to variation in the electric current flowing through the circuit for opening and closing the circuit, the circuit being opened when the first temperature sensing means senses its associated predetermined temperature and either the second or the third temperature sensing means senses it associated predetermined temperature whereby power to the mediumsupplying means is shut off, the circuit being closed when either the second or third temperature sensing means senses its associated predetermined temperature and the first temperature sensing means senses its associated predetermined temperature whereby power is supplied to the medium-supplying means.
Claim 3
Dependent Claim
264 words
In a temperature-regulating apparatus, a heat exchanger providing a flow path for a heat exchanging medium and having a medium inlet and a medium outlet, means for supplying a heat exchanging medium to the heat exchanger for changing the temperature of the heat exchanger, first temperature sensing means mounted on the heat exchanger at a first location for sensing the temperature of the heat exchanger at the first location, second temperature sensing means mounted on the heat exchanger at a second location for sensing the temperature of the heat exchanger at the second location, third temperature sensing means spaced from the heat exchanger for sensing the temperature at a third location away from the heat exchanger, and an electrical control circuit connected to the first, second and third temperature sensing means, each of the temperature sensing means including means for varying the electric current flowing through the electrical control circuit when the temperature sensing means senses a predetermined temperature associated with that temperature sensing means, the electrical control circuit containing means responsive to variation in the electric current flowing through the circuit for opening and closing the circuit, the circuit being opened when the first temperature sensing means senses its associated predetermined temperature and either the second or the third temperature sensing means senses it associated predetermined temperature whereby power to the medium-supplying means is shut off, the circuit being closed when either the second or third temperature sensing means senses its associated predetermined temperature and the first temperature sensing means senses its associated predetermined temperature whereby power is supplied to the medium-supplying means.
Claim 4
Dependent Claim
264 words
In a temperature-regulating apparatus, a heat exchanger providing a flow path for a heat exchanging medium and having a medium inlet and a medium outlet, means for supplying a heat exchanging medium to the heat exchanger for changing the temperature of the heat exchanger, first temperature sensing means mounted on the heat exchanger at a first location for sensing the temperature of the heat exchanger at the first location, second temperature sensing means mounted on the heat exchanger at a second location for sensing the temperature of the heat exchanger at the second location, third temperature sensing means spaced from the heat exchanger for sensing the temperature at a third location away from the heat exchanger, and an electrical control circuit connected to the first, second and third temperature sensing means, each of the temperature sensing means including means for varying the electric current flowing through the electrical control circuit when the temperature sensing means senses a predetermined temperature associated with that temperature sensing means, the electrical control circuit containing means responsive to variation in the electric current flowing through the circuit for opening and closing the circuit, the circuit being opened when the first temperature sensing means senses its associated predetermined temperature and either the second or the third temperature sensing means senses it associated predetermined temperature whereby power to the medium-supplying means is shut off, the circuit being closed when either the second or third temperature sensing means senses its associated predetermined temperature and the first temperature sensing means senses its associated predetermined temperature whereby power is supplied to the medium-supplying means.
Claim 5
Dependent Claim
88 words
The structure of claim 1 in which the temperature regulating apparatus is used for cooling and the medium supplied to the heat exchanger is a cooling medium for lowering the temperature of the heat exchanger, the electrical control circuit being opened when the temperature at either the second or the third location falls to the predetermined temperature for temperature sensing means at that location, the electrical control circuit being closed when the temperature at the first location rises to the predetermined temperature for the first temperature sensing means.
Claim 6
Dependent Claim
38 words
The structure of claim 2 in which the first temperature sensing means is mounted on the heat exchanger adjacent the medium inlet and the second temperature sensing means is mounted on the heat exchanger adjacent the medium outlet.
Claim 7
Dependent Claim
57 words
The structure of claim 1 in which the first and second locations for the first and second temperature sensing means are adjacent each other, the means for varying the electric current of the first and second temperature sensing means being selected so that the predetermined temperatures associated with the first and second temperature sensing means are different.
Claim 8
Dependent Claim
17 words
The structure of claim 4 in which the first and second locations are adjacent the medium inlet.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |