Clinical mirror heating device

• US 4,241,290 A
• Filed: 10/06/1978
• Issued: 12/23/1980
• Est. Priority Date: 10/06/1978
• Status: Expired due to Term

• Current Assignee: Rffolland Consultants Incorporated
• Original Assignee: Roy E. Folland
• Inventors: Folland, Roy E.
• Primary Examiner(s): Bartis, A.
• Application Number:
  US05/949,258
• Time in Patent Office: 809 Days
• Field of Search: 200/61.59, 200/61.58, 200/85, 219/219, 219/242, 219/521, 219/520, 219/518, 219/385, 219/386, 34/202, 34/239, 350/61, 99/389, 99/391, 99/392
• US Class Current: 219/518
• CPC Class Codes: A61B 1/253 with means for preventing fogging

Abstract

An electrical heater device for heating a clinical mirror. The device comprises a housing having a top, bottom and side walls to define a hollow enclosure. Two spiral coiled electric heating elements are secured in the housing with their heat radiating surface spaced apart and facing each other in juxtaposition to provide concentrated heat in a mirror locating space therebetween. An opening is provided in the top wall in alignment with the mirror locating space through which the mirror can be inserted into the mirror locating space. A switch is positioned in alignment with the mirror locating space below the heating elements. The switch has an activating contact on an upper face thereof located in alignment with the opening in the top wall and the mirror locating space for activation by a clinical mirrow when the mirror element of such is inserted into the mirror locating space. The activating contact has a centering element shaped to position and maintain the mirror element of the clinical mirror in centered alignment between and with the heat radiating surfaces of the electric heating elements in the mirror locating space. Electrical connections are provided for connecting the heating elements and the switch to a current source for energization of the heating elements when the switch is activated by engagement of the activating contact by the mirror element of the clinical mirror inserted through the opening in the top wall.

Claims

1. An electrical heater device for heating a clinical mirror, said device comprising a housing having top, bottom and side walls to define a hollow enclosure;

two spiral coiled electric heating elements secured in said housing with their heat radiating surface spaced apart and facing each other in juxtaposition to provide concentrated heat in a mirror locating space therebetween, an opening in said top wall in alignment with said mirror locating space through which said mirror can be inserted into said mirror locating space, a switch positioned in alignment with said mirror locating space below said heating elements, said switch having an activating contact on an upper face thereof located in alignment with said opening in said top wall and said mirror locating space for activation by a clinical mirror when the mirror element of such is inserted into said mirror locating space, said activating contact having a centering element shaped to position and maintain the mirror element of the clinical mirror in centered alignment between and with the heat radiating surfaces of said electric heating elements in said mirror locating space, and electrical connections for connecting said heating elements and switch to a current source for energization of said heating elements when said switch is activated by engagement of the activating contact by the mirror element of the clinical mirror inserted through the opening in said top wall.

2. A heater device as claimed in claim 1, wherein a timer device is connected to said switch and is activated by activation of said activating contact for controlling the period of energization of the heating elements, and an indicator light controlled by said timer device to indicate the start and end of a timing cycle.