THERMOSTAT AND HOUSING FOR THERMOSTAT
First Claim
1. A thermostat comprising:
- a housing including a generally L-shaped main body attached to a generally U-shaped cover to define an internal cavity;
a temperature sensor assembly including a bellows operably fluidly attached to a capillary tube, the bellows and capillary tube defining a sealed cavity storing a working fluid;
a switching arrangement operably actuated by the temperature sensor assembly to open and close a circuit as a result of changes in temperature of the working fluid; and
an adjustment shaft configured to adjust a temperature at which the temperature sensor assembly actuates the switching arrangement to open and close the circuit, the adjustment shaft extending through the housing.
1 Assignment
0 Petitions
Accused Products
Abstract
A thermostat is provided that includes a housing, a temperature sensor assembly, a switching arrangement and an adjustment shaft is provided. The housing includes a generally L-shaped main body attached to a generally U-shaped cover. The temperature sensor assembly includes a bellows operably fluidly attached to a capillary tube. The bellows and capillary tube define a sealed cavity storing a working fluid. The switching arrangement is operably actuated by the temperature sensor assembly to open and close a circuit as a result of changes in temperature of the working fluid. The adjustment shaft is configured to adjust a temperature set point at which the temperature sensor assembly actuates the switching arrangement. The adjustment shaft extends through the housing. Methods of assembly of the thermostat are also provided.
37 Citations
20 Claims
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1. A thermostat comprising:
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a housing including a generally L-shaped main body attached to a generally U-shaped cover to define an internal cavity; a temperature sensor assembly including a bellows operably fluidly attached to a capillary tube, the bellows and capillary tube defining a sealed cavity storing a working fluid; a switching arrangement operably actuated by the temperature sensor assembly to open and close a circuit as a result of changes in temperature of the working fluid; and an adjustment shaft configured to adjust a temperature at which the temperature sensor assembly actuates the switching arrangement to open and close the circuit, the adjustment shaft extending through the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A thermostat comprising:
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a housing; a switching arrangement configured to open and close a circuit; and a temperature sensor assembly including a bellows operably fluidly attached to a capillary tube, the bellows and capillary tube defining a sealed cavity storing a working fluid, the temperature sensor assembly configured to actuate the switching arrangement as a result of changes in temperature of the working fluid; an adjustment shaft configured to adjust a temperature at which the temperature sensor actuates the switching arrangement, the adjustment shaft extending through the housing, the adjustment shaft including a recess defining a radially inward facing cam surface that bounds the recess, the radially inward facing cam surface having a varying radius relative to a rotational axis of the adjustment shaft; and the switching arrangement including a cam follower that cooperates with the cam surface to adjust a temperature setting at which the temperature sensor actuates the switching arrangement. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of assembling a thermostat comprising:
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attaching a U-shaped cover to an L-shaped main body to form a housing; securing an adjustment shaft to the housing for rotation; attaching a temperature sensor assembly to the housing; attaching, operably, a switching arrangement to the housing and the temperature sensor assembly such that the temperature sensor assembly actuates the switching arrangement in response to sensed changes in temperature; and connecting the switching arrangement to the adjustment shaft in such a manner that rotation of the adjustment shaft adjusts the temperature at which the temperature sensor assembly actuates the switching arrangement. - View Dependent Claims (19, 20)
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Specification