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:
Nov. 09, 1999
Filed:
Dec. 18, 1996
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A rapping device is provided for forming a battery separator or the like by rapping from a flexible elastic band material. A rapping device for manufacturing works in a specified shape by rapping from an elastic band material comprises a conveying drum having a first suction unit and a second suction unit for conveying the band material while suction is applied, a die drum having a blade possessing a forming position for rapping and forming the works with a width coinciding with the width of the band material, and a cutting position for cutting between the adjacent works, disposed continuously on the outer circumference at every pitch equal to the length of each work, and a die drum driving device for rotating and driving the die drum in synchronization with the conveying speed of the band material.