Patent US4746818A successfully refreshed from Google Patents.
US3590751A
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US
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Structure
Assignee: ATLAS PALLET CORP
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Filing: 1967-12-15
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Granted: 1971-07-06
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Expires: 1987-12-15
Abstract
Abstract This invention relates generally to cardboard structures, and particularly those for use in industrial pallets. The cardboard structure comprises layers of corrugated cardboard with corrugations running in different directions. This allows the resultant structure to take significant amount of stress in different directions. A pallet structure utilizing this cardboard also has feet formed from a single sheet of thin plastic material. It is free from sharp corners and stress risers and has ribs and ridges and valleys giving added strength to the resultant structure. A pallet having such feet has stringers made of a sandwich construction of corrugated cardboard covered by layers of corrugated cardboard having corrugations running in a direction perpendicular to the corrugations in the sandwich stringers.
Inventors
- 👤 Jacob Freid
- 👤 Charles Stanley Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:01
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/38; B65D19/40; B65D19/0004; B65D19/0006; B65D19/0008; B65D19/002; B65D19/0024; B65D19/0028; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00019; B65D2519/00049; B65D2519/00069; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00288; B65D2519/00293; B65D2519/00303; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00338; B65D2519/00547; B65D2519/00552; B65D2519/00557; B65D2519/00562; B65D2519/00567; Y; Y10; Y10S; Y10S108/00; Y10S108/901
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
141 words
In a pallet, the improvements comprising: Feet of thin sheetlike material shaped into load supporting structure; said feet having downwardly sloping sides forming one continuous rippled wall; said feet having sides and a bottom free of apertures and forming one continuous interior surface and one continuous exterior surface where both such surfaces are free of sharp interior angles and free of sharp interior corners and free of arcs having a radius of an order of magnitude less than the order of magnitude of the thickness of said sides and bottom; said feet having a flange surrounding and attached to and integral with said continuous wall; whereby said continuous wall has both interior and exterior surfaces that are both free of stress-rising, discontinuous and sharp shapes between the ridges and valleys thereof and between said walls and said bottom and said flanges.
Claim 2
Dependent Claim
141 words
In a pallet, the improvements comprising: Feet of thin sheetlike material shaped into load supporting structure; said feet having downwardly sloping sides forming one continuous rippled wall; said feet having sides and a bottom free of apertures and forming one continuous interior surface and one continuous exterior surface where both such surfaces are free of sharp interior angles and free of sharp interior corners and free of arcs having a radius of an order of magnitude less than the order of magnitude of the thickness of said sides and bottom; said feet having a flange surrounding and attached to and integral with said continuous wall; whereby said continuous wall has both interior and exterior surfaces that are both free of stress-rising, discontinuous and sharp shapes between the ridges and valleys thereof and between said walls and said bottom and said flanges.
Claim 3
Dependent Claim
27 words
The apparatus of claim 1 wherein said feet have flanges that are pressed between layers of corrugated cardboard stringers; said flange being substantially parallel to said layers.
Claim 4
Dependent Claim
32 words
The apparatus of claim 1 wherein said feet have flanges that are secured to a cover sheet of corrugated cardboard in the stringers; said flange being substantially parallel to said cover sheet.
Claim 5
Dependent Claim
25 words
The apparatus of claim 1 wherein each of said feet are surrounded by a flange integral with its sides, said flange being free of apertures.
Claim 6
Dependent Claim
10 words
The apparatus of claim 1 and stringers of corrugated cardboard.
Claim 7
Dependent Claim
25 words
In the apparatus of claim 1: stringers of corrugated cardboard; and additional stringers having material chosen from the group consisting of wood, metal, and plastic.
Claim 8
Dependent Claim
74 words
The apparatus of claim 5 wherein said stringers are reinforced by sandwich construction of corrugated cardboard in the stringers; said sandwich construction comprising a pair of contiguous layers of corrugated cardboard with cover sheets therebetween; the corrugations of one of said layers being substantially perpendicular to the corrugations in the other of said layers; wherein loads are applied on the pallet in a direction parallel to the direction of corrugations in said first-mentioned layer.
Claim 9
Dependent Claim
37 words
In the apparatus of claim 1, ribs upwardly extending from said bottom; said ribs being contiguous and substantially perpendicular to said bottom; whereby said feet have substantially greater rigidity and strength in supporting loads on the pallet.
Claim 10
Dependent Claim
26 words
The apparatus of claim 8 wherein said ribs have a height having the same order of magnitude as the thickness of the stringers of said pallet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |