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. 24, 1984
Filed:
Aug. 09, 1982
Charles D Eidschun, Clearwater, FL (US);
Micro-Plate, Inc., Clearwater, FL (US);
Abstract
Disclosed is the continuous processing of flat workpieces such as printed circuit boards which are suspended by a hanger conveyorized for continuous horizontal transport. More specifically, the conveyorizing passes the workpieces through a plurality of chambers having slotted-end members, one such chamber spraying to remove the photoresist, and another such chamber spraying etching solution to remove the copper cladding. Each station has a slotted cover, and the conveyor suspends a plurality of workpiece holders, each of the holders being joined by chain links of an inert material which overlie the slot in the covers for the chambers. The photoresist chamber is provided with a continuous filter for cntinuously removing and filtering the sludge, thereby reducing the tendency of the removal solution to dilute and become ineffective. All of the chambers are modularized, and the system is compatible with continuous processing for the plating of the printed circuit boards.