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:
May. 07, 1991
Filed:
Jan. 29, 1990
John D Ruff, Alexandria, VA (US);
Thermadyne, Inc., Alexandria, VA (US);
Abstract
The system disclosed in my U.S. Pat. No. 4,897,099 for deriving purified ice pieces and purified water from tap water is modified by providing a metal or thermally conductive heat flow path from an alternative refrigerant condenser to the ice collection bin. In one embodiment the size/shape of the heat flow path provides sufficient heat flow resistance to maintain a temperature gradient thereacross whereby the bottom of the bin is at approximately 32.degree. F. and the condensing rejection temperature is at least 60.degree. F. In another embodiment the alternative condenser is undersized relative to the primary condenser (used in the non-melting mode). In a further embodiment the second condenser is operated in a partially flooded condition during the ice-melting mode to reduce its effective condensing surface area.