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:
May. 29, 1984
Filed:
Jul. 26, 1982
Georg Nemeskeri, Chester, CA;
S. C. Johnson & Son, Inc., Racine, WI (US);
Abstract
A method for dielectric welding together of two substantially rigid thermoplastic flanged parts (or 'subshells') to form a flangeless, typically thin-walled, thermoplastic shell. The method may be praticed using a pair of relatively movable, clamping electrodes, which define a shell-receiving hollowed space bounded by flange-engaging areas, operate together to create a flangeless weld. The characteristics of the dielectric field application, that is, making the dielectric field most concentrated along the line forming the proximal edge of the flanges, the clamping action, and the timing of various operations are all important features of the invention. One of the preferred embodiments utilizes a double-beveled cutting electrode.