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. 05, 1985
Filed:
May. 14, 1984
Joseph J Mahon, Libertyville, IL (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A control system and programmer/timer for a microwave oven having a program cam advanced by a pawl-stepped ratchet wheel having three toothed segments, each with teeth of differing root diameter. The outer teeth provide rapid expanded scale advancement for the terminal five minutes of the cooking program and also for selected programs of five minutes or less for high-resolution switching by the program cam. The segment of teeth of intermediate root diameter provides a compressed scale slower cam advance rate for 'COOK' programs of 5-35 minutes. The segment of teeth of lowest root diameter provides slow rate cam advancement for auxiliary 'DELAYED START' and KEEP-WARM functions where time accuracy is not critical. The programmer/timer enables continued advancement of the program cam after time-out of the cooking program where the KEEP-WARM mode has been preselected.