Patent No. EP2799192 (titled "Electric Hair Grooming Appliance Including Touchscreen") was filed by Spectrum Brands on Mar 19, 2012. The application was issued on Oct 24, 2018.
An electric, handheld hair removing appliance, such as a trimmer, shaver, clipper, or epilator, comprises a housing, a control circuit, and at least one hair grooming device featuring a blade head assembly and a drive assembly. A touchscreen on the housing or grooming device receives user inputs, sending command signals to the control circuit to regulate device operation, including the speed of hair-removing members or heating member temperatures in styling appliances. Specifically, for trimmers, the appliance includes an adjustable comb assembly with a comb selectively movable relative to the blade head via a comb-driving assembly. The control circuit, upon receiving a touchscreen command, triggers the comb-driving assembly to move the comb by predetermined increments, thereby adjusting the hair cut-length setting.

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