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:
Sep. 25, 1984
Filed:
Feb. 09, 1982
Herbert E Mayer, Eschen, LI;
CENSOR Patent-und Versuchsanstalt, Vaduz, LI;
Abstract
In a dampening arrangement for oscillations occurring in rapidly stepwise displacements of a cross slide system of a circuit printing machine, the moving part is with one portion thereof immersed in a viscous dampening liquid within a cavity. Between the walls of the cavity and the outer surfaces of the immersed portion there is formed a small gap, the width of which is calculated by a special formula and which is in the range between 10.mu. and 100.mu., preferably between 25.mu. and 60.mu., and optimally about 40.mu.. Within this gap a friction between the moving part, the liquid layers, and the stationery surface occurs, so as to dampen any oscillations of the moving part in a short decay time.