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:
Jan. 06, 2009
Filed:
Jun. 27, 2003
David Kirby, St. Joseph, MI (US);
Luigi Martinella, Ghiffa, IT;
Giorgio Giudici, Lonate Pozzolo, IT;
David Kirby, St. Joseph, MI (US);
Luigi Martinella, Ghiffa, IT;
Giorgio Giudici, Lonate Pozzolo, IT;
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A vacuum insulated refrigerator cabinet comprises an evacuation system for evacuating an insulation space of the cabinet when pressure inside such space is higher than a predetermined value. The cabinet presents sensor means comprising a temperature sensor and a heater both located within the insulation space and a control system for activating the heater according to a predetermined heating cycle and for receiving a signal from the temperature sensor, such control system being able to provide the evacuation system with a signal related to the insulation level within the insulation space.