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. 30, 2000
Filed:
Jan. 19, 1999
Applicant:
Inventor:
James Medal, Cape Coral, FL (US);
Assignee:
Unimation, Inc., Ft. Meyers, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
428 357 ; 156 731 ; 1565801 ; 264445 ; 215398 ; 220770 ; 220771 ;
Abstract
Two plastic pieces such as a handle and a container are welded together using an ultrasonic horn. Protrusions serving as energy directors are arranged on one piece in a substantially circular array, in a starburst design. A hole or cavity is formed at a central axis of the circular array so that the amount of energy concentrating at inner ends of the energy directors will not create a burned spot or a hole in the container. The ultrasonic energy at the inner ends of the protrusions is concentrated at the smaller inner area defined by the inner ends of the protrusions to first melt inner ends of the protrusions and then the entire protrusions.