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. 07, 1999
Filed:
Sep. 11, 1997
Klaus Heinrich Hemsath, Toledo, OH (US);
Arvind Chhotalal Thekdi, Rockford, IL (US);
Rodney G Whitbeck, Northville, MI (US);
Mark George Shapona, Canton, MI (US);
Ronald Scott Lucas, Livonia, MI (US);
Claude Melvin Mack, Ypsilanti, MI (US);
Ford Motor Company, Dearborn, MI (US);
Indugas, Inc., Toledo, OH (US);
Abstract
A thermal treating apparatus and process providing convection thermal transfer for elevated processing temperatures and chemical treatment. A recirculation plenum for passage of spent treatment fluid from and fresh treatment fluid to a treatment chamber may contain a thermal control source, a chemical control source, and a blower to provide predetermined programmable temperatures and chemical environments to articles in the treatment chamber. Decreasing cross sectional areas along the length of the treatment chamber cause introduction of fresh treatment fluid at different locations along the length of the treatment chamber to achieve desired uniform thermal and chemical treatment of articles along the length of the treatment chamber.