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:
Aug. 30, 1988
Filed:
Nov. 24, 1986
Pola Chemical Industries, Inc., Shizuoka, JP;
Abstract
An ultrasonic sealing apparatus is disclosed wherein a pair of sheet-like members a bottom portion of a tubular member is fuse-bonded together by frictional heat generated by ultrasonic vibration. The apparatus includes horn (1) and anvil (2) means interposed with members to be fuse-bonded together. The horn and anvil provide contact surfaces (3) in contact with the members to be fused. Each of the contact surfaces is formed with a plurality of grooves (4) to provide a plurality of protrusions (5). Each of the protrusions has a flat upper surface and slanted side surfaces (6), so that the protrusion has a trapezodial cross-section. The horn means applies ultrasonic vibration to the fuse-bonding surfaces of the members to be fused in a direction oblique or parallel therewith in association with the anvil means.