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.

Date of Patent:
Sep. 06, 1988

Filed:

Oct. 13, 1987
Applicant:
Inventor:

Thomas B Sager, Newtown, CT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ; B29C / ;
U.S. Cl.
CPC ...
156 69 ; 53488 ; 156 731 ; 156267 ; 156293 ; 1565802 ; 264 23 ;
Abstract

The method of closing an open ended thermoplastic body with a thermoplastic sheet material comprises the provision of a groove in the thermoplastic body and a protrusion disposed on the output surface of a horn adapted to be resonant at an ultrasonic frequency. The protrusion of the horn is dimensioned to enter the groove and force the sheet material into contact with surfaces forming the groove for achieving, when the horn is rendered resonant, a weld between the sheet material and the body, the weld being confined to the surfaces forming the groove.


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