US4407898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner pad
Assignee: Fukuoka Paper Manufacturing Co Ltd
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Filing: 1982-02-24
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Granted: 1983-10-04
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Expires: 2002-02-24
Abstract
Abstract An improved corner pad is provided which is adapted to be applied to a corner of a cubic or rectangular parallelopipedal article, for example, a speaker box or the like for the purpose of protecting the corner of the article in packaging it into a packing box such as a corrugated cardboard box or the like for transporting or storing it.
Inventors
- 👤 Hideo Kato
- 👤 Hiroto Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:46
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/50; B65D5/5028; B65D5/5088
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
113 words
A corner pad comprising four substantially square hollow bodies made of a synthetic resin arranged substantially in a checkerboard pattern, all but one adjacent set of the hollow bodies being connected to each other along their adjacent edges by foldable pieces so as to form a three-faced body whose respective surfaces are substantially at right angles to each other in an erected condition by folding said four hollow bodies at the foldable pieces, and the two hollow bodies to be superposed in said erected condition being formed respectively with a protrusion and an opening fitting engageable with each other in said erected condition to retain the superposed condition of said two hollow bodies.
Claim 2
Dependent Claim
113 words
A corner pad comprising four substantially square hollow bodies made of a synthetic resin arranged substantially in a checkerboard pattern, all but one adjacent set of the hollow bodies being connected to each other along their adjacent edges by foldable pieces so as to form a three-faced body whose respective surfaces are substantially at right angles to each other in an erected condition by folding said four hollow bodies at the foldable pieces, and the two hollow bodies to be superposed in said erected condition being formed respectively with a protrusion and an opening fitting engageable with each other in said erected condition to retain the superposed condition of said two hollow bodies.
Claim 3
Dependent Claim
69 words
A corner pad as set forth in claim 1, wherein peripheral surfaces of said protrusions and edges of said opening are formed with engaging pieces in the form of latches extending therefrom and engageable and disengageable from one another with the aid of an elasticity of the synthetic resin forming the corner pad, whereby the engagement of the engaging pieces maintain the superposed condition of said two hollow bodies.
Claim 4
Dependent Claim
38 words
A corner pad as set forth in claim 1, wherein after said protrusion has been fitted in said opening, the protrusion is at least partially collapsed so as to extend its extreme end which anchors at said opening.
Claim 5
Dependent Claim
26 words
A corner pad as set forth in claim 1, wherein each hollow body includes a small aperture communicating with an inner space in the hollow body.
Claim 6
Dependent Claim
49 words
A corner pad as set forth in claim 1, wherein the two hollow bodies other than the two hollow bodies to be superposed in said erected condition include a plurality of recesses in their surfaces facing outwardly in said erected condition to form reinforcing ribs by the remaining portions.
Claim 7
Dependent Claim
60 words
A corner pad as set forth in claim 1, wherein one of said superposing hollow bodies is formed in a surface confronting the other hollow body with a reinforcing ridge in the form of an L-shaped protrusion along edges of two surfaces adjacent at right angles to said surface and at right angles to each other in said erected condition.
Claim 8
Dependent Claim
49 words
A corner pad as set forth in claim 2, wherein the two hollow bodies other than the two hollow bodies to be supersposed in said erected condition include a plurality of recesses in their surfaces facing outwardly in said erected condition to form reinforcing ribs by the remaining portions.
Claim 9
Dependent Claim
49 words
A corner pad as set forth in claim 3, wherein the two hollow bodies other than the two hollow bodies to be superposed in said erected condition include a plurality of recesses in their surfaces facing outwardly in said erected condition to form reinforcing ribs by the remaining portions.
Claim 10
Dependent Claim
49 words
A corner pad as set forth in claim 4, wherein the two hollow bodies other than the two hollow bodies to be superposed in said erected condition include a plurality of recesses in their surfaces facing outwardly in said erected condition to form reinforcing ribs by the remaining portions.
Claim 11
Dependent Claim
60 words
A corner pad as set forth in claim 2, wherein one of said superposing hollow bodies is formed in a surface confronting the other hollow body with a reinforcing ridge in the form of an L-shaped protrusion along edges of two surfaces adjacent at right angles to said surface and at right angles to each other in said erected condition.
Claim 12
Dependent Claim
60 words
A corner pad as set forth in claim 3, wherein one of said superposing hollow bodies is formed in a surface confronting the other hollow body with a reinforcing ridge in the form of an L-shaped protrusion along edges of two surfaces adjacent at right angles to said surface and at right angles to each other in said erected condition.
Claim 13
Dependent Claim
60 words
A corner pad as set forth in claim 4, wherein one of said superposing hollow bodies is formed in a surface confronting the other hollow body with a reinforcing ridge in the form of an L-shaped protrusion along edges of two surfaces adjacent at right angles to said surface and at right angles to each other in said erected condition.
Claim 14
Dependent Claim
60 words
A corner pad as set forth in claim 5, wherein one of said superposing hollow bodies is formed in a surface confronting the other hollow body with a reinforcing ridge in the form of an L-shaped protrusion along edges of two surfaces adjacent at right angles to said surface and at right angles to each other in said erected condition.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |