US3708101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging pad
Assignee: Whirlpool Corp
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Filing: 1970-10-02
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Granted: 1973-01-02
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Expires: 1990-10-02
Abstract
Abstract A clearance shock absorbing packaging pad comprising a paperboard blank foldable into a hollow elongated four sided structure having interlocked overlapped top parts that do not require gluing or other fastening means other than the interlocked portions and sloping sides to control compression of the pad under load conditions.
Inventors
- 👤 J Mcdanield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:57
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/05; B65D81/107
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
212 words
A clearance shock Absorbing packaging pad, comprising: a folded paperboard blank having opposite side edges, a base portion, a pair of opposite side portions at the opposite sides of the base portion and a pair of edge portions between said edges and said side portions; means forming approximately linearly aligned inwardly directed interlocking slits at said edge portions; and means providing fold areas between said portions, the resulting said pad thereby having a base comprising said base portion, opposite sides comprising said side portions and a top comprising said edge portions in overlapped relationship with said slits in interlocking interference engagement, an edge portion on one side of its said slit being above and on the other side of its said slit beneath said opposite edge portion with the result that said overlapped edge portions are also interlaced for added shock absorbing strength and stability, each said edge portion having a boundary portion at a said edge provided with a fold area means permitting bending of a boundary portion of the inner said overlapped edge portion into surface engagement with the corresponding side portion on the inner surface thereof, and with said edge of said inner portion being received in the angle formed by the base portion and corresponding said side portions.
Claim 2
Dependent Claim
212 words
A clearance shock Absorbing packaging pad, comprising: a folded paperboard blank having opposite side edges, a base portion, a pair of opposite side portions at the opposite sides of the base portion and a pair of edge portions between said edges and said side portions; means forming approximately linearly aligned inwardly directed interlocking slits at said edge portions; and means providing fold areas between said portions, the resulting said pad thereby having a base comprising said base portion, opposite sides comprising said side portions and a top comprising said edge portions in overlapped relationship with said slits in interlocking interference engagement, an edge portion on one side of its said slit being above and on the other side of its said slit beneath said opposite edge portion with the result that said overlapped edge portions are also interlaced for added shock absorbing strength and stability, each said edge portion having a boundary portion at a said edge provided with a fold area means permitting bending of a boundary portion of the inner said overlapped edge portion into surface engagement with the corresponding side portion on the inner surface thereof, and with said edge of said inner portion being received in the angle formed by the base portion and corresponding said side portions.
Claim 3
Dependent Claim
26 words
The pad of claim 1 wherein each said slit extends less than the full width of its said edge portion, the slits having lateral interlocking enlargements.
Claim 4
Dependent Claim
185 words
A clearance shock absorbing packaging pad, comprising: a folded paperboard blank having opposite side edges, a base portion, a pair of opposite side portions at the opposite sides of the base portion and a pair of edge portions between said edges and said side portions; means forming approximately linearly aligned inwardly directed interlocking slits at said edge portions; and means providing fold areas between said portions, the resulting said pad thereby having a base comprising said base portion, opposite sides comprising said side portions and a top comprising said edge portions in overlapped relationship with said slits in interlocking interference engagement, an edge portion on one side of its said slit being above and on the other side of its said slit beneath said opposite edge portion with the result that said overlapped edge portions are also interlaced for added shock absorbing strength and stability, said base portion being wider than said overlapped top, and the slits terminating at substantially the center of the pad so that the sides of the resulting pad are sloped upwardly and inwardly toward each other for added crush resistance.
Claim 5
Dependent Claim
185 words
A clearance shock absorbing packaging pad, comprising: a folded paperboard blank having opposite side edges, a base portion, a pair of opposite side portions at the opposite sides of the base portion and a pair of edge portions between said edges and said side portions; means forming approximately linearly aligned inwardly directed interlocking slits at said edge portions; and means providing fold areas between said portions, the resulting said pad thereby having a base comprising said base portion, opposite sides comprising said side portions and a top comprising said edge portions in overlapped relationship with said slits in interlocking interference engagement, an edge portion on one side of its said slit being above and on the other side of its said slit beneath said opposite edge portion with the result that said overlapped edge portions are also interlaced for added shock absorbing strength and stability, said base portion being wider than said overlapped top, and the slits terminating at substantially the center of the pad so that the sides of the resulting pad are sloped upwardly and inwardly toward each other for added crush resistance.
Claim 6
Dependent Claim
83 words
The pad of claim 3 wherein each said edge portion has a boundary portion at a said edge provided with a fold area means permitting movement of the boundary portion of the inner said overlapped edge portion into surface engagement with the corresponding side portion on the inner surface thereof under a compression load applied to the top of said pad, and with said edge of said inner portion received in the angle formed by the base portion and corresponding said side portion.
Claim 7
Dependent Claim
26 words
The pad of claim 4 wherein each said slit extends less than the full width of its said edge portion, the slits having lateral interlocking enlargements.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |