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:
Jul. 26, 1994
Filed:
Feb. 22, 1993
Michael Shapcott, Hometown, PA (US);
ZapatA Technologies, Inc., Hazleton, PA (US);
Abstract
An apparatus for forming liners of thermoplastic material within closure shells contains a movable die having an inner punch member and an annular outer mold member both of which are movable up and down in relatively slidable relation with each other and arranged so that the inner punch takes its lowermost position after the outer mold member has taken its lowermost position. In one embodiment of the present invention, the lower end surface of the outer mold member is beveled and defines a plurality of radial grooves. The lower end wall of the outer mold member is moved downwardly until it is opposite the horizontal wall of the closure shell. As the inner punch moves into its lowermost position, thermoplastic material is forced through the radial grooves so that a thick annular pad portion of the seal liner is formed beneath the lower end wall of the outer mold member.