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.
Patent No.:
Date of Patent:
Sep. 25, 2001
Filed:
Jan. 18, 2000
S. Asim Gul, Orono, MN (US);
Mamac Systems, Inc., Eden Prairie, MN (US);
Abstract
An HVAC control unit is formed of a molded, electrically insulative material. The HVAC control unit has a wall plate and a cover plate. The wall plate attaches to a standard electrical box and has an opening for wires, and a cover plate attaches to the wall plate forming a sensor compartment. A vertical separation wall divides the sensor compartment into two chambers, namely, a temperature sensitive chamber and an electrical component chamber. Electrical contacts extend through the separation wall. The cover plate includes lower and upper ventilation openings to allow unforced air flow from the outside room through the temperature sensitive chamber. The vertical separation wall restricts air flow between the two chambers, closing the temperature sensitive chamber to the electrical component chamber. A gasket seals an edge of the vertical separation wall to further restrict air flow between the chambers. The temperature sensor is placed in the lower third of the temperature sensitive chamber. In the preferred embodiment, the HVAC unit extends into the room no more than one inch and is sized to no greater than four inches wide and six inches high. In one embodiment, the temperature sensitive chamber extends the full height from a bottom to a top of the sensor compartment. In another embodiment, the temperature sensitive chamber has a slanted top wall.