The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 1990
Filed:
Jan. 10, 1990
William C Frick, Lancaster, PA (US);
Paul W Rothweiler, Jr, Lancaster, PA (US);
Burle Technologies, Inc., Wilmington, DE (US);
Abstract
An interlocked infrared detector wall switch which prevents use of the full 'on' position that bypasses the infrared sensor, but permits changeover by service personnel to use the full 'on' position. The slide switch on the wall switch assembly is partially covered by a snap-on interlock plate so that it can not be moved to the full 'on' position. Removal of the interlock plate requires a screwdriver for leverage within an opening at the bottom of the interlock plate, but this opening is covered by the decorative switch plate, so that removal of the interlock plate is impossible without first removing the covering decorative plate. Casual disabling of the interlock is thereby prevented.