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:
Jan. 05, 1993
Filed:
Oct. 29, 1991
Applicant:
Inventors:
Karl F Ketelhohn, State College, PA (US);
Randall E Markle, State College, PA (US);
James J Ash, Centre Hall, PA (US);
Assignee:
Chemcut Corporation, State College, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134 32 ; 134151 ; 134902 ; 1988362 ;
Abstract
An apparatus and method is disclosed for transporting thin materials, such as printed circuit boards or films, in an etching or other chemical treatment operation whereby a series of guide members, such as wires, which move back and forth in a reciprocating manner, guide the articles being transported through the apparatus and facilitate generally uniform treatment coverage of the articles with a treatment fluid.