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:
Mar. 19, 1991
Filed:
Oct. 23, 1989
Friedrich R Kohlbach, Greifenburg, DE;
John L Rawson, Newcastle-upon-Tyne, GB;
Bowater Packaging Limited, London, GB;
Abstract
A method and apparatus for aseptically filling containers with product, such as the bags (B) of bag-in-box containers, wherein the aseptic filling chamber (9 or 40) with a filling head or nozzle (5 or 43) therein is provided with fluid inlet and outlet lines (2,4,6,8,19,21,39 or 57,59,63) to create desired positive or negative atmospheric conditions within the chamber, so that a positive pressure can be maintained within the chamber when change over, at an aperture in the chamber, of a bag to be filled occurs, and so that after filling, a negative pressure (through line 15 or 63) can be generated to evacuate the chamber and hence remove any headspace gas from the top of the filled container prior to it being capped.