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:
Oct. 20, 1992
Filed:
Feb. 04, 1992
Stephen J Beale, Weymouth, GB;
DEK Printing Machines Limited, Weymouth, GB;
Abstract
Support means for a workpiece, such as for example a printed circuit board to be screen printed, comprise a plurality of parallel upright elongate members, upper ends of which engage the underside of the workpiece or components secured thereon. Armatures and electromagneto magnets are provided in a housing selectively to clamp the elongate members in a raised position or allow them to fall to a lowered position. Clamping means to clamp the workpiece comprise clamping plates on opposite sides of the workpiece and having very thin foils projecting laterally therefrom over the workpiece and operating means to lower or raise the clamping plates to clamp or release the workpiece.