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. 15, 1994
Filed:
Mar. 23, 1993
Nihat O Cur, Royalton Township, Berrien County, MI (US);
Richard W Kruck, Sodus Township, Berrian County, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A method for manufacturing a vacuum insulation panel is provided which includes the steps of: drying a quantity of microporous powder; evacuating the powder of gases; evacuating a gas impermeable bag of gases; loading the powder into the gas impermeable bag while the bag and powder remain in an evacuated condition; and sealing the gas evacuated bag with the gas evacuated powder therein to form a vacuum insulation panel. The powder in the bag should be compacted before the bag is sealed and also a trace amount of helium may be injected into the bag prior to sealing to assist in leak detection of the sealed panel. The panel with injected helium has an internal pressure not exceeding 1 mm Hg.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile