US 12,396,066 B2
Heater control for countertop appliance
Julian Warwick, Jim Falls, WI (US)
Assigned to National Presto Industries, Inc., Eau Claire, WI (US)
Filed by National Presto Industries, Inc., Eau Claire, WI (US)
Filed on Mar. 26, 2024, as Appl. No. 18/617,339.
Application 17/357,507 is a division of application No. 16/196,561, filed on Nov. 20, 2018, abandoned.
Application 18/617,339 is a continuation of application No. 17/357,507, filed on Jun. 24, 2021, granted, now 11,968,753.
Claims priority of provisional application 62/640,952, filed on Mar. 9, 2018.
Claims priority of provisional application 62/588,741, filed on Nov. 20, 2017.
Prior Publication US 2024/0244715 A1, Jul. 18, 2024
Int. Cl. H05B 1/02 (2006.01); H05B 3/68 (2006.01)
CPC H05B 1/0266 (2013.01) [H05B 3/68 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An appliance temperature controller, the temperature controller comprising:
at least two electrical output contacts selectively coupleable to an appliance;
a user input configured to receive a desired temperature setpoint;
a temperature sensor in thermal communication with a temperature conducting member, the temperature conductive member adapted to receive a projecting rib formed in a cook surface portion of the appliance such that the temperature sensor receives temperature information from the cook surface via the projecting rib, the temperature sensor positioned such that it does not receive temperature information from the projecting rib directly;
a mounting block positioned between the temperature sensor and an engagement opening configured to receive the projecting rib, the mounting block forming a barrier between the temperature sensor and the engagement opening; and
a thermostat configured to adjust an electrical output of at the least two of the electrical output contacts to minimize a difference between the desired temperature setpoint and a measured temperature of the projecting rib based on the received temperature information.