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:
Dec. 28, 1976
Filed:
Oct. 03, 1975
Ellsworth A Hartbauer, Concord, CA (US);
Crown Zellerbach Corporation, San Francisco, CA (US);
Abstract
A system for treating paper webs and the like including a platen roller and a plurality of support rollers angularly spaced thereabout. At least one of the support rollers is an embossing roller cooperative with the platen roller to emboss a web advanced between the facing juxtaposed surfaces of the platen and embossing rollers. The platen roller is floatingly confined by the support rollers and has no rigidly fixed axis of rotation. Such platen roller is also hollow, including a cylindrical wall component defining a gaseous fluid pressurized chamber. The cylindrical wall component of the roller is of resilient construction and is inwardly depressible by the support rollers against the force of the gaseous pressure fluid acting outwardly thereagainst within the pressurized chamber. The web material to be treated is passed through the nips defined by one or more support rollers, including at least one embossment roller, and the platen roller. While passing through and between said nips the web material is continuously supported over substantially the entire surface area along one side thereof without application thereto of tensile stress of a magnitude tending to tear the same. Besides treating the web material to provide an embossed appearance thereto the system otherwise treats it to provide for increased absorbency, softness and apparent bulk.