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:
Jun. 01, 1999

Filed:

Oct. 07, 1997
Applicant:
Inventors:

Hideki Sunaga, Tokyo, JP;

Masatoshi Suto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F / ;
U.S. Cl.
CPC ...
236 493 ; 165204 ; 236 13 ;
Abstract

In the air conditioning apparatus, the air conditioning amplifier unit e is connected to the plurality of door actuators through a single communication line and a single power source line, and also there is provided a fan motor maximum voltage limit control means which not only can create a communication signal to be transmitted through the single communication line in the form of two-way signals including a transmission signal containing door target stop position data to be transmitted to the door actuators, and a response signal to be sent back from the door actuators, but also, when the door target stop position data transmitted last time is different from the door target stop position data transmitted this time, can exert a maximum voltage limit on a fan motor, and, when the signal to be sent back from the door actuators, to the air conditioning amplifier unit is a control end signal which indicates that the door position reaches the target position and the door control is ended, can remove the exertion of the maximum voltage limit.


Find Patent Forward Citations

Loading…