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. 26, 2002
Filed:
Aug. 07, 1997
Edward Podosek, Wilbraham, MA (US);
Avery Dennison Corporation, Pasadena, CA (US);
Abstract
A ring binder and method of making the same. According to a preferred embodiment, the ring binder comprises a front cover stiffening member, a spine stiffening member and a rear cover stiffening member, all of which are appropriately positioned between a matching pair of woven sheets. The woven sheets are made of a synthetic fiber or thread that is ultrasonically weldable. Examples of materials that may be suitable for use as the synthetic fiber or thread include polyvinyl chloride, polypropylene, polyethylene, nylon, orlon, rayon and combinations thereof. The woven sheets are ultrasonically welded together around their respective peripheries and on opposite sides of the spine stiffening member to define, together with the three stiffening members, a front cover, a spine and a rear cover. The binder further includes a paper-retaining ring mechanism, which is secured to the spine or to one of the front and rear covers.