Protective apparatuses for rotary control knobs

A protective apparatus for rotary control knobs, the apparatus comprising:

• a cover adapted fit over a rotary control knob, the cover being rotatably mounted to a case surface of an electric device;
• a knob cavity internal to the cover and adapted to provide space for the rotary control knob to rotate about, the knob cavity surrounding all sides and a top of the rotary control knob creating a space between the top of the rotary control knob and a top end of the cover;
• a first and a second lateral access aperture located on sides of the cover and adapted to provide limited access to the rotary control knob;
• a vertical access aperture located on the top end of the cover above the rotary control knob and above the knob cavity, the vertical access aperture allowing for a visual line of sight through the cover to the rotary control knob;
• and
• the top end of the cover protruding upwardly away from the case surface at a first distance above the case surface and the rotary control knob protruding upwardly away from the case surface at a second distance above the case surface, the first distance being greater than the second distance so that the cover completely surrounds and encases the rotary control knob from both the sides and from above.