The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 03, 1981

Filed:

Aug. 30, 1979
Applicant:
Inventors:

Richard E Fitzgerald, Minneapolis, MN (US);

Dennis R Grabowski, Dakota, MN (US);

Assignee:

Honeywell Inc., Minneapolis, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
337360 ; 165 26 ; 236 / ;
Abstract

A thermostat adapted for controlling heating and cooling apparatuses has a temperature control point adjustment means connected to a temperature responsive switch means for adjusting the control point thereof. A changeover switch means is connected to the temperature responsive switch means for selectively connecting either heating or cooling apparatus to the temperature responsive switch means. A temperature control point limit means is connected to the temperature control point adjustment means so that upon selecting by means of the changeover switch means either a heating or a cooling operation, the temperature control point limit means limits the movement of the temperature control point adjustment means to a first range of movement when heating is selected and a second range of movement when cooling is selected.


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