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. 04, 1989
Filed:
Mar. 22, 1988
Takao Furukawa, Onomichi, JP;
ECS Corporation, , JP;
Abstract
The invention relates to a method and apparatus for vacuum-packaging material in a soft flat packaging bag. Packaging bags filled with a material are supported in a plurality of holders in advance in a place other than a plurality of vacuum chambers adapted to be intermittently rotated along a circular path. Such holders are successively fed to the vacuum chambers. While a vacuum chamber which has been fed with such holder is rotating along the circular path, this vacuum chamber is evacuated, the opening section of the packaging bag is sealed and then the vacuum chamber is opened to the surrounding atmosphere. And the packaging bag which has completed vacuum packaging is withdrawn from the vacuum chamber. Since the vacuum chamber is fed with a relatively large-sized holder rather than a soft flat bag which is difficult to handle, errors in feeding are avoiding.