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:
Dec. 21, 2004
Filed:
Nov. 05, 2002
Scott Douglas, Burlington, VT (US);
John Bardeau, Essex Jct, VT (US);
Blodgett Holdings, Inc., Burlington, VT (US);
Abstract
An automatic deliming process for a steam oven cooker is described. The process initiates a deliming procedure after a predetermined time of normal operation, which period of time is determined by the hardness of the water in the local area. Upon the expiration of this period of time a microprocessor signals an operator to shut down normal operation of the oven, and initiate the deliming process. The microprocessor then activates a peristaltic pump which injects a predetermined quantity of deliming liquid from an external reservoir into the generator. After the deliming time has passed and the generator contents have cooled to 140° F. the microprocessor automatically activates a drain pump to drain the deliming solution from the generator. Subsequently the microprocessor activates a fill-solenoid opening and inlet from a reservoir of rinse water into the generator to rinse the same. The microprocessor then again opens the drain to drain the rinse water, and normal operation is resumed.