US007861941B2 (12) United States Patent (10) Patent N0.2 US 7,861,941 B2 Schultz et al. (45) Date of Patent: Jan. 4, 2011 (54) AUTOMATIC THERMOSTAT 4,
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US 7,861,941 B2 Page 2 US. PATENT DOCUMENTS 6,236,326 B1 5/2001 Murphy 6,285,912 B1 9/2001 Ellison et a1. 4446913 A 5/1984 Krocker 6,290,140 B1 9/2001
U.S. Patent Jan. 4, 2011 Sheet 16 0120 US 7,861,941 B2 13 12/1 ?gure 24 10\ 24—
US 7,861,941 B2 Page 3 Trouble Shooting Guide for Ritetemp Thermostat 8082, 1 page, 2002. Quick Start Guide for Ritetemp Thermostat 8082, 1 page, 2002
US 7,861,941 B2 Page 4 http://WWW.thermostatsales.com, Robertshaw, “9710 Deluxe Pro grammable Thermostat,” 3 pages, printed Jun. 17, 2004. http://WWW.
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