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:
Apr. 20, 1993
Filed:
Jul. 16, 1991
Charles D Donaldson, Loveland, OH (US);
Dyment Limited, , CA;
Abstract
Heavy duty spools having the capacity to hold at least about 375 to 675 pounds of product, such as between about 2,800 and about 3,000 unfilled plastic or paper bags which are sized to hold disposable diapers, are disclosed. The heavy duty spools of the instant invention are preferably fabricated from paperboard materials and include two flange plates connected by a hollow outer core. The hollow outer core is formed from a plurality of corrugated interlocks, each having locking arms on the ends thereof. The flange plates have central openings and a plurality of anchoring slots spaced around the central openings. The anchoring slots extend radially from and intersect the central openings and cooperate with the locking arms of the hollow outer core to anchor the hollow outer core snugly against the flange plates. Interlocks, when assembled into the hollow outer core, form unique ribs which lend support to the hollow outer core. Inserted inside the hollow outer core and through the central openings is a hollow inner core preferably formed of solid paper wrap. The inserted hollow inner core abuts the ribs inside the hollow outer core and lends further support to the hollow outer core through the ribs. The flange plates may be provided with viewing holes so that the plastic or paper bags wound thereon can be viewed and monitored during use of the assembled spool. The flange plates may further be provided with flat regions to prevent the spools from rolling during shipment.