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:
May. 12, 1987
Filed:
Oct. 25, 1985
Joseph G Schroeder, Bay Village, OH (US);
Donald E Keeler, Vernon, NJ (US);
International Paper Company, New York, NY (US);
Abstract
An apparatus for coating a plastics coated paperboard web with a sterilizing liquid such as hydrogen peroxide, the web adapted to be folded and cut to form aseptic packages for filling with foodstuffs such as fruit juices and milk. The apparatus includes a pair of rolls between which the web is moved and is coated. The lower (applicator) roll of the pair is provided with continuous helical grooves and is partially immersed in a bath of sterilizing liquid. The configuration of the grooved surface of the applicator roll has been found to be critical in meeting coating standards in the field of aseptic packaging. The grooves make a pitch angle of from 5.degree. to 12.degree. with the longitudinal axis of the applicator roll, with a preferred angle of 9.degree.. Either single grooves or crossed grooves may be used, with the land area of this roll being from 60 to 80%. The applicator roll is manufactured from stainless steel (#316). The silicon elastomer of 60 Durometer hardness is bonded to its diameter, the outer cylindrical surface carrying the configuration or pattern of grooves.