Switch unit for a garage door operator or the like

Description

FIG. 1 is a front perspective view of a switch unit for a garage door operator or the like showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D156393 December 1949 Wisnewsky
D211950 August 1968 Driscoll
D303248 September 5, 1989 Fenne
2012875 August 1935 Guett
2363854 November 1944 Bierenfeld
3432611 March 1969 Gaines et al.
Patent History
Patent number: D324511
Type: Grant
Filed: Oct 11, 1989
Date of Patent: Mar 10, 1992
Assignee: Allister Manufacturing Company, Inc. (West Chester, PA)
Inventors: John F. Ginther (North Wales, PA), Kim E. Burrichter (Upper Darby, PA), Charles P. Coggins (Downingtown, PA), David C. Guthrie (Chester Springs, PA), Mark K. Lucchi (West Chester, PA)
Primary Examiner: B. J. Bullock
Attorney: Robert Charles Beam
Application Number: 7/420,126
Classifications