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. 22, 1998
Filed:
Jan. 07, 1997
Rein S Teder, Bloomington, MN (US);
Peter F Gerhardinger, Toledo, OH (US);
Fred A Millett, Perrysburg, OH (US);
Libbey-Owens-Ford Co., Toledo, OH (US);
Abstract
A glass heating system includes a low emissivity sheet of coated glass and a capacitor for capacitive coupling the coated glass to a power source. The low emissivity glass is economical to produce and provides superior thermal properties. The low emissivity glass has a low sheet resistance and is coupled to one or more capacitors to increase the impedance of the circuit and reduce the power dissipation by the coated glass. The exact amount of power to be delivered to the coated glass can be varied by changing the capacitor. The low emissivity glass has improved thermal characteristics for use in insulating glass doors for freezers and refrigerators. In a two-paned insulating glass door, the capacitor can be conveniently mounted in the frame of the door or in the space between the two panes.