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:
Aug. 20, 2002
Filed:
Jul. 31, 2001
Richard John Emerick, Sr., Freeport, IL (US);
Joel Ernst Leiser, Freeport, IL (US);
Michael John Howerter, Lanark, IL (US);
Jan Michael Pottinger, Lanark, IL (US);
Rick W. Brockhouse, Lanark, IL (US);
Stephen E. Gatz, Morrison, IL (US);
James Donald Worden, Savanna, IL (US);
Elkay Manufacturing Company, Oakbrook, IL (US);
Abstract
A process for annealing copper or copper-containing components, such as copper tubing, and/or for selecting copper with an appropriate grain size, such that potable water in contact with the properly treated and/or selected copper, has substantially decreased copper emissions, and may comply with ANSI/NSF 61. In one preferred embodiment, an ANSI/NSF 61-compliant water cooler may be constructed using a storage tank with wrapped copper water tubing treated and/or selected in this manner. The storage tank is preferably designed from non-copper components.