US4051787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic pallet
Assignee: Mitsubishi Chemical Corp
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Filing: 1975-09-29
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Granted: 1977-10-04
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Expires: 1995-09-29
Abstract
Abstract A pallet for a fork lift structurally comprises two component parts of thermoplastic resin wherein each of said component parts comprises a deck board and girders integrally formed thereon with at least one girder being disposed along each of the side edges of said deck board and along a line intermediate and parallel to the side edges, at least one of said component parts being provided with numerous ribs integrally formed on said deck board, which are lower in projection than said girders and which in areas not covered by said girders are disposed in decreased distance from one another in the neighborhood of the side edges of the deck board, said component parts being mutually melt adhered together at the respective bottom surfaces of said girders provided thereon, and wherein the deck board is provided with an anti-slip member having an upper and a lower portion and fitted into a hole penetrating a rib interally formed on the deckboard so that the lower portion of the anti-slip member protrudes from the rib.
Inventors
- 👤 Kiyoshi Nishitani
- 👤 Ryuzo Ebina
- 👤 Ikuo Sukekawa
- 👤 Shuji Shintani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:36
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/0004; B65D19/0006; B65D19/0008; B65D19/001; B65D19/0012; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00034; B65D2519/00049; B65D2519/00069; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00288; B65D2519/00303; B65D2519/00308; B65D2519/00313; B65D2519/00318; B65D2519/00328; B65D2519/00333; B65D2519/00343; B65D2519/00348; B65D2519/00358; B65D2519/00363; B65D2519/00398; B65D2519/00402; B65D2519/00407; B65D2519/00412; B65D2519/00547; B65D2519/00552; B65D2519/00557; B65D2519/00562; B65D2519/00736; B65D2519/00825; B65D2519/0083; B65D2519/0084; Y; Y10; Y10S; Y10S108/00; Y10S108/901
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
186 words
A pallet for a fork lift structurally comprising: two mating component parts of thermoplastic resin wherein each of said components parts comprises a deckboard having inner and outer surfaces and girders integrally formed on said inner surfaces with at least one girder being disposed along each of the side edges of said deckboard and along a line intermediate and parallel to the side edges so as to define fork lift insertion openings therebetween, at least one of said component parts being provided with numerous ribs, integrally formed on the inner surface of said deckboard, which are lower in projection than said girders and which in areas not covered by said girders are disposed decreased distances from one another in the neighborhood of the side edges of the deckboard, said deck board being provided with an anti-slip means having an upper and lower portion and fitted into a hole penetrating a rib integrally formed on said deckboard so that the lower portion of said anti-slip means protrudes from said rib, and said component parts being mutually melt adhered together at the respective bottom surfaces of said girders.
Claim 2
Dependent Claim
186 words
A pallet for a fork lift structurally comprising: two mating component parts of thermoplastic resin wherein each of said components parts comprises a deckboard having inner and outer surfaces and girders integrally formed on said inner surfaces with at least one girder being disposed along each of the side edges of said deckboard and along a line intermediate and parallel to the side edges so as to define fork lift insertion openings therebetween, at least one of said component parts being provided with numerous ribs, integrally formed on the inner surface of said deckboard, which are lower in projection than said girders and which in areas not covered by said girders are disposed decreased distances from one another in the neighborhood of the side edges of the deckboard, said deck board being provided with an anti-slip means having an upper and lower portion and fitted into a hole penetrating a rib integrally formed on said deckboard so that the lower portion of said anti-slip means protrudes from said rib, and said component parts being mutually melt adhered together at the respective bottom surfaces of said girders.
Claim 3
Dependent Claim
20 words
The pallet as set forth in clain 1 wherein said anit-slip means protrudes from the outer surface of said deckboard.
Claim 4
Dependent Claim
20 words
The pallet as set forth in clain 1 wherein said anit-slip means protrudes from the outer surface of said deckboard.
Claim 5
Dependent Claim
22 words
The pallet as set forth in claim 1 wherein said anti-slip means does not protrude to the outer surface of said deckboard.
Claim 6
Dependent Claim
41 words
The pallet as set forth in claim 1 wherein said anti-slip means is provided in such a manner that the upper portion thereof protrudes from the outer surface of the deckboard when the lower portion thereof is touching an inserted fork.
Claim 7
Dependent Claim
92 words
The pallet as set forth in claim 1 wherein each of said girders, disposed along said line intermediate and parallel to both side edges, is hollow and is provided with reinforcing strips extending the same direction as the fork-inserting direction, and disposed intermediate the longitudinal side walls defining said girder and upon the transverse end walls of said girders defining a fork-inserting mouth, and having the same height as that of the girder, so that said component parts are mutually melt adhered together also at the respective bottom surface of said strips.
Claim 8
Dependent Claim
42 words
The pallet as set forth in claim 1 wherein each of said girders disposed along each of side edges of said deckboard is hollow and a rib extending from the point of the corner of said parallel is provided within said girders.
Claim 9
Dependent Claim
20 words
The pallet of claim 1 wherein said fork-inserting mouth is provided on each of all four sides of said pallet.
Claim 10
Dependent Claim
17 words
The pallet of claim 7 wherein said fork-inserting mouths on adjacent sides are disposed at different levels.
Claim 11
Dependent Claim
42 words
The pallet of claim 7 wherein the lower component part has a structure such that the adjacent girders are connected lengthwise and breadthwise on the deckboard of the lower component part by providing a plurality of relatively large openings in the deckboard.
Claim 12
Dependent Claim
17 words
The pallet of claim 1 wherein the inner surface of the lower deckboard is even and smooth.
Claim 13
Dependent Claim
48 words
The pallet of claim 1 wherein the inner surface of the lower deckboard is provided with ribs and the portion surrounded by said ribs is opened to provide good drainings along the side of the bottom surface of the lower deckboard so that water does not settle therein.
Claim 14
Dependent Claim
69 words
The pallet of claim 1 wherein, along the front and back sides, the inner surfaces of the lower deckboard is even and smooth while, along the other sides, the inner surface of the lower deckboard is provided with ribs and the portion surrounded by said ribs is opened to provide good drainage along the side or the bottom surface of the deckboard so that water does not settle therein.
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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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |