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:
Sep. 16, 2003
Filed:
Aug. 16, 2000
Yukio Sasaki, Shiga, JP;
Ishida Co., Ltd., Kyoto, JP;
Abstract
A bagging and packaging Machine has a substitute gas supply passage provided in a tube member forming a part of a bag former for forming a strip of packaging material into a bag. By securing a generally elongated plate to a front inner side of the tube member to thereby form the substitute gas supply passage that extends in a direction parallel to the longitudinal sense of the packaging material from an upper portion down to a lower end portion of the tube member and by rendering the cross-sectional area of the substitute gas supply passage to be larger at a lower portion thereof than at an upper portion, the structure can be obtained in which a required quantity of substitute gas can be introduced into the bag-shaped packaging material at a moderate flow velocity. In this way, while the speed of packaging operation can be increased and the rate of replacement of the gas can be maintained at a high value, production of defective bagged products which would result from the biting of the articles in the seals consequent upon blow-up of some of the articles within the bag-shaped packaging material can be prevented advantageously.