US3790075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat assembly
Assignee: Carrier Corp
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Filing: 1972-07-12
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Granted: 1974-02-05
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Expires: 1992-07-12
Abstract
Abstract A ceiling air terminal serving as part of an air conditioning system for a building and adapted to discharge conditioned air into an area to be treated. The terminal is provided with a bleed-type thermostat employing a bimetallic element movable in response to temperature variations in the air passing over the element from the area served by the ceiling terminal. The bimetallic element is adjustably supported for movement relative to the housing of the thermostat. The adjustable support includes a calibration member formed of a thermoplastic material. The calibration member journals a control rod. The position of the control rod is selectively varied to regulate the operation of the terminal to obtain a desired temperature in the area. A resilient spring member cooperates with the calibration member so the member is maintained in intimate contact with the control rod, thereby preventing the rod from self rotating.
Inventors
- 👤 E Rifkin
- 👤 R Dreibelbis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:15
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/76
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
165 words
In combination with a room thermostat for regulating the operation of a terminal supplying conditioned air into an area so a desired temperature level can be obtained, said thermostat including a bimetallic element for sensing the temperature of the air in the area and being movable in response thereto, the improvement which comprises: A. adjustable support means, including a calibration member formed of thermoplastic material, for supporting at least a portion of said bimetallic element; B. control means journaled by said calibration member and being selectively adjustable to position said bimetallic element so a desired temperature condition is obtained in said area; and C. resilient spring means connected to said calibration member for providing a squeezing force to maintain intimate contact between the portion of said calibration member journaling said control means and said control means, said contact being maintained regardless of any deformation of said calibration member from its original configuration, to prevent said control means from self rotating relative to said calibration member.
Claim 2
Dependent Claim
165 words
In combination with a room thermostat for regulating the operation of a terminal supplying conditioned air into an area so a desired temperature level can be obtained, said thermostat including a bimetallic element for sensing the temperature of the air in the area and being movable in response thereto, the improvement which comprises: A. adjustable support means, including a calibration member formed of thermoplastic material, for supporting at least a portion of said bimetallic element; B. control means journaled by said calibration member and being selectively adjustable to position said bimetallic element so a desired temperature condition is obtained in said area; and C. resilient spring means connected to said calibration member for providing a squeezing force to maintain intimate contact between the portion of said calibration member journaling said control means and said control means, said contact being maintained regardless of any deformation of said calibration member from its original configuration, to prevent said control means from self rotating relative to said calibration member.
Claim 3
Dependent Claim
22 words
The combination in accordance with claim 1 wherein said spring means includes an upstanding wall portion having side-arm portions extending integrally therefrom.
Claim 4
Dependent Claim
90 words
A control assembly for use in air conditioning system components wherein said components regulate the operation of terminal units employed in said system to discharge conditioned air into an area comprising: A. a control rod, the position thereof being selectively adjustable to a position corresponding to the desired temperature condition in said area; B. means journaling said control rod within the housing of said component; and C. resilient spring means to maIntain intimate contact between said control rod and said journaling means to prevent said control rod from self rotating.
Claim 5
Dependent Claim
90 words
A control assembly for use in air conditioning system components wherein said components regulate the operation of terminal units employed in said system to discharge conditioned air into an area comprising: A. a control rod, the position thereof being selectively adjustable to a position corresponding to the desired temperature condition in said area; B. means journaling said control rod within the housing of said component; and C. resilient spring means to maIntain intimate contact between said control rod and said journaling means to prevent said control rod from self rotating.
Claim 6
Dependent Claim
23 words
A control assembly in accordance with claim 3 wherein said spring means includes an upstanding wall portion having side-arm portions extending integrally therefrom.
Claim 7
Dependent Claim
62 words
The combination in accordance with claim 2 wherein said calibration member includes a portion having opposed wedge-shaped surfaces, and a flange normal to said wedge-shaped surfaces, said side arm portions of said spring means moving radially outward as a result of contacting said wedge-shaped surfaces the outer ends of each of said side arm portions being in intimate contact with said flange.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |