Escalator motion detecting control device

Description

FIG. 1 is a perspective view of the escalator motion detecting control device embodying the design of the present invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof, the side opposite being a mirror image of the side shown in FIG. 4;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view showing the placement of the device with respect to an escalator, with the escalator being shown in broken lines as it is not part of the claimed invention.

Referenced Cited
U.S. Patent Documents
D319196 August 20, 1991 Hwang
1438112 December 1922 Hendricks
1985563 December 1934 FitzGerald
4499986 February 19, 1985 Tsuboi
Patent History
Patent number: D342914
Type: Grant
Filed: Oct 23, 1991
Date of Patent: Jan 4, 1994
Inventor: Bob Grieco (Hawthorne, NY)
Primary Examiner: Kay H. Chin
Attorney: Terry M. Gernstein
Application Number: 7/781,284
Classifications
Current U.S. Class: D10/106; Mobile Stair (D34/30)