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:
Feb. 18, 1992
Filed:
Oct. 09, 1989
Kenneth B Kidder, Coon Rapids, MN (US);
Wilmer L Adams, Fridley, MN (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
An apparatus ensures that a controller memory is programmed to store safety critical information corresponding to a heating system in which it is installed. The heating system has a controller and a controller memory which controls the heating system based on input parameters provided to the controller and based on safety critical information stored in the controller memory. A program signal is generated when the controller memory is electrically disconnected from the heating system indicating that the controller memory must be programmed to include safety critical information. Operation of the heating system is inhibited in response to the program signal.