Temperature control device

• US 4,355,347 A
• Filed: 07/11/1980
• Issued: 10/19/1982
• Est. Priority Date: 07/11/1980
• Status: Expired due to Term

• Current Assignee: Rachael M. Guthrie
• Original Assignee: Rachael M. Guthrie
• Inventors: Guthrie, Rachael M.
• Primary Examiner(s): Lechert, Jr., Stephen J.
• Application Number:
  US06/038,281
• Time in Patent Office: 830 Days
• Field of Search: 362/29, 362/30, 362/253, 362/280, 362/321
• US Class Current: 362/30
• CPC Class Codes: G05B 11/00 Automatic controllers G05B13/00 takes precedence
• CPC Class Codes: G05D 23/1902 characterised by the use of a variable reference value

Abstract

A temperature control device is provided which comprises a thermostatic control means. The thermostatic control means is for automatically controlling the temperature of a location to a predetermined temperature. A means is additionally provided for setting the predetermined temperature. The means for setting includes an elongated temperature scale and a set point. The scale and set point are movable with respect to each other. The set point indicates the predetermined temperature on the scale.

The scale has associated therewith different colors along the periphery thereof. A means for illuminating the temperature scale near the set point is provided to reveal the color associated with the predetermined temperature. Thus an observer of the temperature control device, knowing the colors associated with the temperatures or knowing the colors at which he is most comfortable, can immediately observe from a distance the predetermined temperature at which the device is set. The device is particularly useful for those with impaired vision who cannot readily observe the numbers on the temperature scale.

Claims

1. A temperature control device comprising:

a thermostatic control means for automatically controlling the temperature of a location to a predetermined temperature;

a stationary source of light shielded on both of its sides consisting of a set point, and a plurality of translucent temperature indicators through which the light shines which are mounted to be rotated manually to different settings of the control, each setting being indicated by a temperature indicator of a different shade of color, the shades of color ranging gradually from a light blue for a cool temperature to a dark red for a hot temperature.