Sub-Zero Group, Inc.

Alexander R Krahn

Mark R Eckert

Bronson Blum

A control knob includes a control rod assembly including a base plate, a control rod, and an electronic circuit board, a display connected to receive an electrical signal from the electronic circuit board and including a display front face that displays a device status, a knob including a knob aperture wall, and a cover mounted between the knob and the base plate and including a cover sidewall that mounts to the base plate, a cover front wall mounted to the cover sidewall to cover an interior of the cover sidewall, and a display aperture wall formed in a portion of the cover sidewall and a portion of the cover front wall. The display aperture wall allows insertion of the display housing. The control rod assembly, the display, and the cover rotate with the knob when the knob is rotated. The display front face is visible through the knob aperture wall.

Control knob with display

A knob assembly includes a knob, a light assembly, a light socket, and a receptacle. The light assembly includes a light diffuser, a light source, and a light connector prong. Light from the light source is transmitted through the light diffuser. The light connector prong is electrically connected to the light source to provide power to the light source when the knob is rotated. The light socket includes a socket housing, a light connector aperture wall, an electrical connector aperture wall, and an internal conductor. The light connector prong is mounted within the light connector aperture wall. A power connector prong connectable to a power source is mounted within the electrical connector aperture wall. The connector housing of the receptacle is configured to house the light socket. The light connector prong is inserted into the light connector aperture wall through a first wall of the device.

Growing community of inventors

Sun Prairie, WI, United States of America

Alexander R Krahn