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.:

US 8306669 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 06, 2012

Filed:

Oct. 30, 2009
Applicants:

Blaine M. Smith, Portland, OR (US);

Matthew T. Fisher, Reno, NV (US);

Inventors:

Blaine M. Smith, Portland, OR (US);

Matthew T. Fisher, Reno, NV (US);

Assignee:

Tim Simon, Inc., San Francisco, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A thermostat-controlled heater/cooler is used to condition air in a temperature-controlled region. A target temperature is obtained and compared to the temperature of the region to determine if heating/cooling is required. If yes, then outside air is directed into the region without operating heater/cooler and updated temperatures of the region are measured. The directing and measuring are continued until (1) the measured temperature equals the target temperature, at which time control returns to the obtaining a target temperature step, or (2) the updated measured temperature differs from the target temperature by a chosen amount, and in some examples, if the updated temperature does not reach the target temperature within a chosen length of time, or the target temperature changes, or the program segment ends, at which time directing outside air into the temperature-controlled region is stopped and the heater/cooler is operated under control of the thermostat.


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