Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3602157 A
Publication typeGrant
Publication dateAug 31, 1971
Filing dateSep 30, 1968
Priority dateSep 30, 1968
Publication numberUS 3602157 A, US 3602157A, US-A-3602157, US3602157 A, US3602157A
InventorsAbie Cohen, Louis Cohen
Original AssigneeAbie Cohen, Louis Cohen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pallet
US 3602157 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent Able Cohen P.0. Box 584;

Louis Cohen, PO. Box 2313, both of Abilene, Tex. 79604 [72] Inventors [211 Appl. N0.- 763,613

[22] Filed Sept. 30, 1968 [45] Patented Aug. 31, I971 [54] PALLET 1 Claim, 8 Drawing Figs. v

[51] lnt.Cl 865d 19/00 [50] FieldolSear-ch 108/51,58; 189/36 [56] References Cited UNITED STATES PATENTS I 3,082,850 3/1963 Weening 189/36 D X 2,306,752 12/1942 Riemenschneider et al.. 108/57 108/58 1,612,382 12/1926 Lehman 2,152,086 3/1939 Powell 108/57 2,463,214 3/1949 Stoner 108/58 X 2,570,326 10/1951 Angelis... 108/51 X 2,705,120 3/1955 Owen 108/56 2,933,339 /1960 Airden l 108/58 X 3,007,663 11/1961 Huck l 108/57 3,118,400 1/1964 Kemp,Jr.et al.. 108/58 3,172,374 3/1965 Allen 108/51 Primary ExaminerBobby R. Gay Assistant ExaminerGlenn O. Finch AtlorneysClarence A. O'Brien and Harvey B. Jacobson ABSTRACT: An industrial pallet having a plurality of parallel spaced channel members which transversely mount a number of parallel hollow spaced slats between respective upper and lower sides of the channel members. The channel members include plates at spaced intervals therein for rigidifying the channels. The slats are corrugated for increasing the structural strength of the pallet. A second embodiment provides overhanging slats including rigidifying bars therein for permitting straddle lifting of the pallet.

PALLET The present invention relates to material handling platforms and more particularly to industrial pallets used in conjunction with forklift trucks and the like.

The majority of industrial pallets currently being used are constructed entirely or substantially entirely of wood. Such pallets develop splintered edges and corners which have a tendency to cause injuries to workmen when handling the pallets. Further, the wooden pallets are necessarily relatively thick and heavy in weight in order to provide the required compression strength for supporting heavy material loads as well as lateral shock loads which are received during normal use of the pallet. Thus, conventional wooden pallets are awkward and difficult to handle due to their size and weight. Also, their additional weight reduces the amount of material that may be successfully lifted by a forklift truck or the like in a single operation.

Still further, such wooden pallets deteriorate rapidly due to normal wear, warpage and breakage thus requiring frequent replacement and relatively high maintenance expense.

The present pallet is entirely fabricated from metal. The component parts of the present pallet include reinforced channel members and corrugated cross braces for slats. The pallet provides the user with a lighter, safer, more durable, more sanitary, and more easily repaired pallets than is now available in wooden models, while at the same time maintaining a cost to the user that is economically feasible. The metal parts of the present pallet structure are formed in four basic shapes and the lengths of the various metal parts may be cut to desired lengths to render the availability of the pallets of various lengths and widths.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIG. 1 is a perspective view of the present industrial pallet.

FIG. 2 is a side elevational view of the pallet illustrated in FIG. 1.

FIG. 3 is a longitudinal sectional view taken along a plane passing through section line 3-3 of FIG. 1.

FIG. 4 is a transverse sectional view taken along a plane passing through section line 4-4 of FIG. 2.

FIG. 5 is a partial cutaway view illustrating the utilization of a reinforcing bar inserted in the slat members of a modified form of the present invention.

FIG. 6 is a partial sectional view taken along a plane passing through section line 6-6 of FIG. 5.

FIG. 7 is a partial sectional view illustrating the use of a corrugated reinforcing strip in the slat members.

FIG. 8 is a partial perspective view of an alternate channel member construction.

Referring specifically to the drawings, and more particularly FIG. 1, reference numeral 10 generally denotes the present industrial pallet structure which is seen to include three laterally and parallel spaced stringers in the form of channel members 12a, 12b and 12c, each channel member having a C-shaped cross section. Channel members 124 and 12b are positioned so that the channel opening therein confront one another. Channel member 12c is interposed between the other channel members. It will of course be appreciated that the number of channel members may be increased or decreased depending upon the size, nature, and weight of the load handled.

As shown in FIGS. 1 and 4, rectangular plates 14 are positioned within the openings of the channel members, several such plates being positioned at spaced intervals along the length of each channel member. For purposes of presenting a finished appearance, each end of the channel members includes a flush mounted plate 14. These plates increase the load bearing capability of the channel members. Additional structural strength may be imparted to each channel member by pressing corrugated impressions 19 into the base portion of each channel members 12 as shown in FIG. 8.

Two longitudinally oriented oblong slots 18 are formed in each channel member to permit the passage of forklift members through the entire pallet structure. The apertures are formed by punching an oblong strip from the normally vertically disposed walls of the channel members. The material immediately surrounding the aperture is pressed inwardly thereby forming a flange or ledge on the interior surface of the aperture. The ledge on the top and bottom of the aperture provides a flat surface for forks to work against and the ledges also provide extra reinforcement to the channel members.

Referring to FIGS. 1 and 3, there is shown a number of closely spaced and parallel disposed slat members 20 which are attached to the normally upwardly horizontal surface of the channel members. As illustrated in FIGS. 2 and 3, three slat members identical in configuration to those previously discussed are connected to the normally positioned bottom surface of the channel members in a manner connecting the mutually aligned ends of the channel members as well as their median points.

Referring to FIG. 3 the slat members 20 are shown in cross section to include inwardly turned lateral edges 22 which are suitably connected to the upper surface 24 of intersecting channel members. The rounded lateral edges integrally append to coplanar spaced horizontal flange portions 26 which in turn append inwardly to downwardly inclined flange portions 27. An elongated flat flange portion 28 connects the angularly inclined flange portion 27 and also provides a surface for connecting'each slat member 20 to the upper surfaces 24 of the channel members by welding or the like. As will be appreciated by viewing FIG. 3, the slat members 20' disposed on the underside of the normally oriented pallet are identical to slat members 20 and are similarly attached to the undersurface of the channel members.

Thus, the complete metallic structure of the pallet shown in FIG. 1 is described and as will be appreciated from viewing the Figure, the pallet permits fork entry through the oblong apertures 18 or through the transverse open ends of the pallet.

FIG. 5 illustrates a modification of the basic design shown in FIG. 1 and is seen to include slat members 21 which extend over or overhang the laterally outward channel members and 12b for purposes of permitting straddling support of the pallet which is desired in certain material handling applications. In order to increase the rigidity of the overhanging slat members 21, and inhibit the bending thereof due to prolonged handling and abuse, elongated reinforcing bars 30 are inserted within the void created between flange portions 26 and upper surfaces 24 of the channel members. Thus, the corrugated structure of the slat members are reinforced to provide necessary structural strength. In order to protect the laterally outward ends of the overhanging slat members 21, elongated runners 32 having a generally U-shaped cross section are disposed over the outward flat member ends. The disposition of reinforcing bars 30 and runners 32 is clearly shown in FIG. 6.

A modification of the reinforcing bar 30 is shown in FIG. 7 to include a corrugated or rippled reinforcing strip 34 which replaces the previously discussed reinforcing bar. Due to the corrugated contours of strip 34, the overhanging slat member portions are rigidified.

The foregoing is considered as illustrative only of the princi ples of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.

We claim:

l. A pallet construction for use with a material handling machine comprising a plurality of single ply stringers positioned in parallel spaced relation and having upper and lower sides, transversely and inwardly fluted aligned apertures formed in the stringers for supportingly receiving the lifting v terminating flush with the outer surfaces of the remote stringers, the outer ends of the slats also being rounded and closed to eliminate sharp edges, each of said channel shaped stringers having a plurality of vertical plates welded interiorly thereof to reinforce the stringers, each stringer having one of said plates welded to and closing each open end thereof.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1612382 *Jan 14, 1920Dec 28, 1926Central Alloy Steel CorpTruck platform
US2152086 *Dec 5, 1938Mar 28, 1939Powell Pressed Steel CompanyPallet construction
US2306752 *Mar 2, 1940Dec 29, 1942Union Metal Mfg CoSheet metal pallet construction
US2463214 *Nov 5, 1945Mar 1, 1949Monroe Auto Equipment CoPallet
US2570326 *Dec 30, 1946Oct 9, 1951De Angelis Joseph BFastening device for sheet material
US2705120 *Jun 7, 1949Mar 29, 1955Donald L HerzerPallet
US2933339 *Jun 28, 1954Apr 19, 1960Alvden Bror Robert Joh HjalmarPallets and similar constructions for carrying heavy goods
US3007663 *Sep 4, 1959Nov 7, 1961Huck Products CorpDisposable pallets
US3082850 *Oct 12, 1959Mar 26, 1963Weening SamuelStructural panel
US3118400 *Jan 22, 1962Jan 21, 1964 Pallet
US3172374 *Jun 28, 1963Mar 9, 1965Stanray CorpPallets
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3826205 *Oct 30, 1972Jul 30, 1974Follansbee Steel CorpMetal pallet
US3858527 *Oct 9, 1973Jan 7, 1975Lienhard AgSupport base for a storage receptacle
US3895588 *Mar 4, 1974Jul 22, 1975Banner Metals Division IntercoHeavy duty shipping tray
US3954067 *Nov 22, 1974May 4, 1976Miles Ray PReversible pallet
US4062301 *Dec 11, 1975Dec 13, 1977Pitchford Peter RSnap pallet
US4112854 *Oct 7, 1977Sep 12, 1978Pitchford Peter RMetal pallet
US4485744 *Jul 19, 1982Dec 4, 1984Tokyo Shibaura Denki Kabushiki KaishaMetal pallet
US4690360 *Apr 16, 1985Sep 1, 1987Satco, Inc.Cargo pallet
US4697529 *Feb 13, 1984Oct 6, 1987Plannja AbPallet and method of manufacturing the same
US4834000 *Jul 1, 1987May 30, 1989James DarnellLoad and roll pallet
US5101737 *Mar 22, 1991Apr 7, 1992Marcos GomezPallet assembly
US5211117 *Sep 11, 1991May 18, 1993Lorin Industries, Inc.Pallet assembly
US5417167 *Mar 3, 1993May 23, 1995Salflex Polymers Ltd.Plastic pallet
US5440998 *Feb 3, 1994Aug 15, 1995Polycytek Of Michigan, Inc.Plastic pallet assembly and method
US5445084 *Apr 1, 1993Aug 29, 1995Antal Trading, Ltd.Normed transport pallet
US5460103 *Feb 17, 1992Oct 24, 1995Brunswick MetalpalletsMetal pallet
US5493962 *Jul 15, 1994Feb 27, 1996Mccarthy; David F.Lightweight pallet
US5533456 *May 4, 1994Jul 9, 1996The Lobdell-Emery Manufacturing CompanyRack base construction and method of manufacture
US6006677 *Jan 8, 1998Dec 28, 1999Rehrig Pacific Company, Inc.Plastic pallet
US6250234Jul 1, 1998Jun 26, 2001Rehrig Pacific CompanyMethod of reinforcing a plastic pallet
US6283044Jun 11, 1999Sep 4, 2001Rehrig Pacific CompanyPallet assembly
US6389990Jun 25, 2001May 21, 2002Rehrig Pacific CompanyMethod of reinforcing a plastic pallet
US6418861Nov 15, 2000Jul 16, 2002Masco CorporationModular pallet construction
US6622641Oct 3, 2001Sep 23, 2003Rehrig Pacific CompanyPallet
US6644219Sep 1, 2001Nov 11, 2003Rehrig Pacific CompanyPallet assembly
US6694894Mar 18, 2002Feb 24, 2004C.M.I. Freight-Trans, Inc.Load-and-roll pallet
US6705237Aug 24, 2001Mar 16, 2004Infiltrator Systems, Inc.Plastic pallet design
US6708629Nov 15, 2001Mar 23, 2004Cybele EnvironnementGoods pallet
US6805061Jan 22, 2002Oct 19, 2004Rehrig Pacific CompanyTwo-piece pallet
US6839952Jan 21, 2003Jan 11, 2005Frederick W. HamiltonComposite pallet
US6840181Sep 3, 2003Jan 11, 2005Rehrig Pacific CompanyPallet
US6886475Jan 19, 2003May 3, 2005Rehrig Pacific CompanyPlastic pallet
US6935249Dec 8, 2003Aug 30, 2005Infiltrator Systems, Inc.Pallet substructure
US6955129Dec 5, 2003Oct 18, 2005The Engineered Pallot Company, LlcPlastic pallet design
US7197989May 20, 2002Apr 3, 2007Rehrig Pacific CompanyMethod of reinforcing a plastic pallet
US7308857Mar 9, 2005Dec 18, 2007The Engineered Pallet Company, LlcPallet substructure and pallet design
US7690315Jun 15, 2007Apr 6, 2010Rehrig Pacific CompanyNestable pallet
US8230793Apr 2, 2010Jul 31, 2012Rehrig Pacific CompanyNestable pallet
USRE35870 *Feb 28, 1996Aug 18, 1998Antal Trading, Ltd.Normed transport pallet
EP0115551A1 *Feb 4, 1983Aug 15, 1984Nippon Steel Metal Products Co., Ltd.Metal skid for bundling
EP0911269A2 *Sep 22, 1998Apr 28, 1999Franz Dr. HofmaningerPallet and method of making it
EP1207115A1 *Nov 13, 2001May 22, 2002Cybele EnvironnementTransport pallet
WO1995021093A1 *Jan 31, 1995Aug 10, 1995Polycytek Of Michigan IncPlastic pallet assembly and method
Classifications
U.S. Classification108/57.18, 108/57.1
International ClassificationB65D19/00
Cooperative ClassificationB65D2519/00059, B65D2519/00298, B65D2519/00024, B65D2519/00432, B65D19/0095, B65D2519/00333, B65D2519/00293, B65D2519/00562, B65D2519/00557, B65D2519/00094, B65D2519/00378, B65D2519/00323
European ClassificationB65D19/00C3D4C1