US4223613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional rack
Assignee: TDK Corp
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Filing: 1978-12-26
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Granted: 1980-09-23
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Expires: 1998-12-26
Abstract
Abstract A sectional rack comprises a plurality of modular rack units for holding articles, and pivotal joint means for connecting the rack units together so that the units can pivotally swing relative to one another. Each of the rack units comprises oblong top and bottom plates having holes in both end portions, a post for connecting the two plates together by fitting at both ends in the holes of the plates, and top and bottom fasteners for securing and fastening the post to the plates. The pivotal joint means comprises oblong top and bottom connecting plates having pivot holes formed in both end portions, stepped posts having their ends extending into the pivot holes of the two connecting plates to connect them pivotally to the top and bottom plates of the rack units, and top and bottom fasteners for securing and fastening the posts to the top and bottom plates of the rack units. The top fasteners have a recess each and the bottom fasteners a projection each adapted to mate with the recess.
Inventors
- 👤 Keiichi Yoshizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:06
CPC Classifications
A; A47; A47B; A47B47/00; A47B87/00; A47B87/02; A47B87/0207; A47B87/0246; A47B87/0223; A47B2087/023; A47B2220/00; A47B2220/0061; A47B2220/0069; A47B2220/0072
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
281 words
A sectional rack comprising a plurality of modular rack units for holding articles and pivotal joint means for connecting said rack units together in such a manner that said rack units can pivotally swing relative to one another; said modular rack unit comprising an oblong top plate having connection holes formed in both longitudinal end portions thereof, an oblong bottom plate having connection holes coaxially aligned to the holes of said top plate in both longitudinal end portions thereof, a post for connecting said top and bottom plates together by fitting each end into one of the connection holes of said top and bottom plates, and a top and a bottom fastener for securing and fastening said post to said top and bottom plates; and said pivotal joint means comprising an oblong top connecting plate having pivot holes formed in both longitudinal end portions thereof, an oblong bottom connecting plate having pivot holes coaxially aligned to the pivot holes of said top connecting plate formed in both longitudinal end portions thereof, stepped posts having their ends extending into said pivot holes of said top and bottom connecting plates to connect said top and bottom connecting plates pivotally to said top and bottom plates of said rack units, and a top and a bottom fastener for securing and fastening each end of said stepped posts into the associated holes of said top and bottom plates of said rack units, said top fasteners of said modular rack units and of said pivotal joint means being formed with a recess and said bottom fasteners of said rack units and of said pivotal joint means each having a projection adapted to mate with said recess.
Claim 2
Dependent Claim
281 words
A sectional rack comprising a plurality of modular rack units for holding articles and pivotal joint means for connecting said rack units together in such a manner that said rack units can pivotally swing relative to one another; said modular rack unit comprising an oblong top plate having connection holes formed in both longitudinal end portions thereof, an oblong bottom plate having connection holes coaxially aligned to the holes of said top plate in both longitudinal end portions thereof, a post for connecting said top and bottom plates together by fitting each end into one of the connection holes of said top and bottom plates, and a top and a bottom fastener for securing and fastening said post to said top and bottom plates; and said pivotal joint means comprising an oblong top connecting plate having pivot holes formed in both longitudinal end portions thereof, an oblong bottom connecting plate having pivot holes coaxially aligned to the pivot holes of said top connecting plate formed in both longitudinal end portions thereof, stepped posts having their ends extending into said pivot holes of said top and bottom connecting plates to connect said top and bottom connecting plates pivotally to said top and bottom plates of said rack units, and a top and a bottom fastener for securing and fastening each end of said stepped posts into the associated holes of said top and bottom plates of said rack units, said top fasteners of said modular rack units and of said pivotal joint means being formed with a recess and said bottom fasteners of said rack units and of said pivotal joint means each having a projection adapted to mate with said recess.
Claim 3
Dependent Claim
29 words
A sectional rack according to claim 1, having means defining an enclosure including left and right side plates and a back plate extending between said top and bottom plates.
References Cited (Backward Citations)
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US576815A
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US1303985A
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US898572A
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FR623607A
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US3690610A
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FR2230156A7
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |