David P Mulhouse, Curtis B McNamara, Robert D Juntunen: Power stealing control devices. Honeywell International, January 13, 2009: US07476988 (146 worldwide citation)

A power stealing system having a switch and a circuit that takes power from equipment to operate control electronics. The system may be such that power stealing occurs while the equipment is not powered to avoid disruption or false signals in the electronics or equipment. The circuit may convey take ...

John B Amundson, Robert D Juntunen: Method and apparatus for configuring an HVAC controller. Honeywell International, Seager Tufte & Wickhem, October 4, 2011: US08032254 (78 worldwide citation)

An HVAC controller is described that is configured to be more intuitive and user friendly to program and operate than convention HVAC controllers. In some instances, the HVAC controller may include a touch screen interface that provides greater flexibility in displaying information to the user and/o ...

Robert D Juntunen: Thermostat relay control. Honeywell International, March 9, 2010: US07673809 (61 worldwide citation)

The present invention, in illustrative embodiments, includes methods and devices for reducing power consumption in a thermostat by adjusting pulse levels (duration and/or voltage) that are used to control an HVAC relay in light of variations of ambient conditions or other relay conditions. In some i ...

Michael G Lunacek, John B Amundson, Robert D Juntunen: Thermostat with electronic image display. Honeywell International, Seager Tufte & Wickhem, October 8, 2013: US08554374 (30 worldwide citation)

A programmable controller for homes and/or buildings and their related grounds, such as thermostat, that has a display and an external interface. The external interface may be use for uploading electronic images and/or other information from an external data source, and may use the uploaded electron ...

James I Bartels, Robert D Juntunen, Norman G Planer: Full duplex communication system with power transfer on one pair of conductors. Honeywell International, November 20, 2001: US06320494 (29 worldwide citation)

A local station and a remote station are connected by a single pair of conductors. The local station communicates with the remote station by modulating a power supply within the local station which provides power on the conductor pair for operating the remote station. The remote station modulates it ...

Robert D Juntunen, Roger R Roth: On-site calibration device and method for nonlinearity correction for flow sensor/transmitter. Honeywell, Michael B Atlass, Robert B Leonard, January 2, 1996: US05479812 (29 worldwide citation)

A method and apparatus for providing calibrated and linearized flow sensors for VAV systems with the sensor corrected for device/electronic/drift/and field air turbulence characteristics using factory calibrated flow or pressure sensors with output modified by a transfer function incorporated into a ...

David P Mulhouse, Robert D Juntunen: Switch state assurance system. Honeywell International, January 5, 2010: US07642674 (18 worldwide citation)

A switch state assurance mechanism of a power stealing circuit for connection to a thermostatically controlled or other kind of operational system. The mechanism may be an interface for the power stealing circuit to the operational system. A switch or relay of the mechanism may have several states b ...

Robert D Juntunen, Peter E Stolt, Guy M Shoultz: Function transform sub-base. Honeywell International, April 22, 2008: US07360376 (12 worldwide citation)

Methods, devices and systems for coupling an HVAC controller to an HVAC system are provided. In several embodiments, a sub-base is provided allowing an HVAC controller to be coupled to a printed wire board to allow, in some cases, modification of the HVAC controller function. The sub-base may includ ...

Robert D Juntunen: Dual integral ballast flow sensor. Honeywell, Robert B Leonard, December 3, 1996: US05581027 (11 worldwide citation)

A flow sensor package having dual porous integral restrictors and a substantial bend between an inlet and a passage for housing the flow sensor and connecting the inlet to an outlet.

Robert D Juntunen: Embedded programmable sensor calibration method. Robert B Leonard, February 18, 1997: US05604684 (10 worldwide citation)

A method for quick and low cost calibration of a sensor to remove span and offset errors. Span and offset errors are removed using a circuit which produces a corrected output signal as a function of calculated gain and offset values. The gain and offset values are calculated by first measuring an un ...