Patent US5341868A successfully refreshed from Google Patents.
US5341868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating device for air-conditioner
Assignee: Valeo Thermal Systems Japan Corp
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Filing: 1992-12-23
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Granted: 1994-08-30
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Expires: 2012-12-23
Abstract
Abstract A heat-pump type air-conditioner includes a potentiometer provided to output a voltage corresponding to a position of a slidable terminal movable on a register element. Based on the magnitude of the output voltage, one of a cooling mode, a stop mode and a heating mode is set, as is the speed of the compressor consequently, both the modes selection and the temperature control can be performed with one switch operation.
Inventors
- 👤 Futoshi Nakata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:32
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00642; B60H1/00814; B60H1/00821; B60H1/00864; B60H1/00878
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
184 words
A control device for a climate control system which includes a heat exchange system including a heat exchanger, comprising: shifting means including one terminal for selectively shifting the heat exchanger into one of a cooling mode, a stop mode and a heating mode, while also controlling a temperature of air output by the system within said modes, based on a position of said one terminal, wherein said heat exchange system includes means for cooling air passing therethrough when said heat exchanger is shifted into said cooling mode and for heating the air passage therethrough when said heat exchanger is shifted into said heating mode, and wherein said terminal further comprises a resistor element to which a predetermined voltage is applied at both ends thereof, and means for mounting said terminal to be movable on and along the resistor element for outputting a voltage corresponding to its position on the resistor element, and wherein said control device further comprises control means for setting a revolution number of a compressor in each of the cooling and heating modes, based on the voltage output from the terminal.
Claim 2
Dependent Claim
184 words
A control device for a climate control system which includes a heat exchange system including a heat exchanger, comprising: shifting means including one terminal for selectively shifting the heat exchanger into one of a cooling mode, a stop mode and a heating mode, while also controlling a temperature of air output by the system within said modes, based on a position of said one terminal, wherein said heat exchange system includes means for cooling air passing therethrough when said heat exchanger is shifted into said cooling mode and for heating the air passage therethrough when said heat exchanger is shifted into said heating mode, and wherein said terminal further comprises a resistor element to which a predetermined voltage is applied at both ends thereof, and means for mounting said terminal to be movable on and along the resistor element for outputting a voltage corresponding to its position on the resistor element, and wherein said control device further comprises control means for setting a revolution number of a compressor in each of the cooling and heating modes, based on the voltage output from the terminal.
Claim 3
Dependent Claim
40 words
A control device as claimed in claim 1, further comprising means for stopping said compressor when said stop mode is set, and for rotating said compressor at said revolution number when one of said cooling and heating modes is set.
Claim 4
Dependent Claim
105 words
A control device as claimed in claim 1, wherein said heat exchange system further includes first and second heat-exchangers and means including a four-way valve for switching a flow direction of the refrigerant, and wherein said refrigerant flows in a first direction in said first and second heat-exchangers through said four-way valve so that said first heat-exchanger functions as an evaporator once said cooling mode is set, and said refrigerant flows in a second direction opposite to said first direction in said first and second heat-exchangers through said four-way valve so that said first heat-exchanger functions as a condenser when said heating mode is set.
Claim 5
Dependent Claim
33 words
A control device as claimed in claim 1, further comprising: indication means for indicating the mode set for heat exchange system corresponding to the position of said terminal relative to said resistor element.
Claim 6
Dependent Claim
72 words
A control device as claimed in claim 2, wherein said cooling mode is set by said control means when said voltage output from said terminal is less than a first predetermined value, said stop mode is set when said voltage is not less than the first predetermined value and not greater than a second predetermined value, and said heating mode is set when said voltage is greater than said second predetermined value.
Claim 7
Dependent Claim
31 words
The control device as claimed in claim 5, wherein in said cooling mode, said revolution number of said compressor is increased as said voltage is lowered from said first predetermined value.
Claim 8
Dependent Claim
32 words
A control device as claimed in claim 5, wherein in said heating mode, said revolution number of said compressor is increased as said voltage is progressively made than said second predetermined value.
Claim 9
Dependent Claim
46 words
A control device as claimed in claim 1, further comprising means for allowing the terminal to be manually moved for selectively shifting the heat exchanger into said one of a cooling mode, a stop mode, and a heating mode, based on a position of said terminal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-29 | 1998-02-28 | 1998-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-29 | 2002-02-28 | 2002-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-29 | 2006-02-28 | 2006-08-30 | $7700.00 | Window Closed / Lapsed |