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:
Nov. 23, 1976
Filed:
Jul. 01, 1975
Virginia L Repke, Oak Forest, IL (US);
Johnson & Johnson, New Brunswick, NJ (US);
Abstract
A fluid absorbing and storing structure comprising a highly porous, loosely compacted cellulosic fibrous batt, and integral therewith, a continuous paper-like, densified, cellulosic fibrous layer having selectively thickened portions for rapidly directing fluid away from an initially wetted area. The major unthickened portion of the paper-like, densified layer merges with the loosely compacted batt at a generally planar interface, and the thickened portions extend through the plane of the interface and into the loosely compacted batt to give the structure increased strength. The batt may be contoured to provide increased fluid storage capacity in the central area of the structure. A marginal fluid boundary of loosely compacted cellulosic fibers may be provided to aid in containing fluid within the structure. Further, end edge boundaries in the form of thickened, densified transverse lines near the ends of the densified layer may be included to provide a means for transferring fluid flow laterally to adjacent longitudinal thickened portions. The thickened portions may be coherent and unitary, or may include substantially fiber-free voids surrounded by fibrous strata.