Elevator floor registration button

Description

FIG. 1 is a front perspective view of an elevator floor registration button showing the new design;

FIG. 2 is a front view of the design;

FIG. 3 is a top view of the design; and

FIG. 4 is an elevational view of the left side of the design.

The numerals are shown in broken lines for illustrative purposes only. The button is stippled to show contrast between the button and plate and to indicate a gentle concave curvature in the face of the button.

Referenced Cited
U.S. Patent Documents
D214705 July 1969 Brounn
3952837 April 27, 1976 Rice
Foreign Patent Documents
175175 February 1922 GBX
Other references
  • Design, 11-1957, p. 67, Postal Letter Plate, (top).
Patent History
Patent number: D253940
Type: Grant
Filed: Apr 27, 1977
Date of Patent: Jan 15, 1980
Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
Inventor: Denis E. Bedel (Pittsburgh, PA)
Primary Examiner: Susan J. Lucas
Attorney: C. L. McHale
Application Number: 5/791,369
Classifications
Current U.S. Class: Elevator Signal Or Call Unit (D10/108)
International Classification: D1006;