# US 4,890,743 A · System and pallet for packaging yarn spools

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- Number: US 4,890,743 A
- Document ID: US4890743A
- Status: Granted
- Kind: A
- Application number: 07/166,972
- Filed: 1988-03-11
- Granted: 1990-01-02
- Earliest claimed: 1988-03-11
- Assignees: Cad/Cam Tooling, Inc.
- Inventors: Stephen S. Powel; Robert J. Darby
- Web page: https://patentgrep.com/patent/US4890743A

## CPC

- B65D 71/70: Trays provided with projections or recesses in order to assemble multiple articles, e.g. intermediate elements for stacking
- B65D 19/0028: {and each contact surface having a discrete foot-like shape}
- B65D 2519/00034: Plastic
- B65D 2519/00069: Plastic
- B65D 2519/00273: made of more than one piece
- B65D 2519/00288: made of one piece
- B65D 2519/00308: grid type, e.g. perforated plate
- B65D 2519/00318: made of one piece
- B65D 2519/00338: contact surface having a discrete foot-like shape
- B65D 2519/00557: without separate auxiliary elements
- B65D 2519/00567: mechanical connection, e.g. snap-fitted
- B65D 2571/00018: under tension
- B65D 2571/00055: Clapping elements, also placed on the side
- B65D 2571/00098: Devices for transporting the load also from above
- B65D 2571/00111: Arrangements of flexible binders
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## Abstract

An improvement in a system for palletizing yarn packages or other cylindrical-core-wound goods includes molded plastic pallets, a first one of which supports a plurality of yarn spools thereon and a second one of which acts as a cover; the improved pallets including a centrally disposed tubular or cylindrical wall defining a gripping aperture having an inner diameter substantially equivalent to the inner diameter of the yarn tubes. So configured, during the stacking and unstacking of the yarn packages and pallets, the pallets may be lifted and transported by the same mechanical gripping device used to lift and transport the yarn packages.

## Claims

### Claim 1

An apparatus for palletizing multiple individual packages of core wound strand material wherein the strand material is wound on a hollow cylindrical tube; said apparatus comprising:
(a) a supporting pallet having a planar support surface, and a plurality of feet arranged in spaced relationship underneath said planar surface;
(b) a separator grid for insertion between said planar support surface and the individual packages; said grid including a plurality of integrally molded vertical projections depending therefrom for engagement in said hollow tubes;
(c) detachable projection members for selectively mounting on the surface of said grid opposite each of said integral vertical projections;
(d) an intermediate separator grid for insertion between multiple layers of individual packages; said intermediate grid including a plurality of said detachable projection members mounted thereon for engagement in adjacent upper and lower packages;
(e) a covering pallet for overlying the uppermost layer of yarn packges; and
(f) each of said supporting and covering pallets including a centrally disposed aperture defined by a cylindrical wall member extending through said pallet; said cylindrical wall having an inner diameter substantially equivalent to the inner diameter of the tubes on which said yarn packages are wound.