Patent US4574709A successfully refreshed from Google Patents.
US4574709A
Expired / Lapsed
US
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Shelf element and support therefor
Assignee: Mead Corp
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Filing: 1983-12-05
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Granted: 1986-03-11
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Expires: 2003-12-05
Abstract
Abstract To provide support for a plurality of shelf elements disposed one above another, each shelf element is provided with one or more apertures for receiving tubular shelf supporting posts and each aperture is arranged to be closed by means including a support sleeve projecting from a lower surface of each shelf element together with support means mounted on the inner surface of said support sleeve for supporting and positioning suitable closure means disposed within each shelf aperture and mounted on said support means so as to provide a partial closure therefor but which is adapted to receive the lower end of a support post for another higher shelf. Each shelf element affords a multiplicity of arrangements for receiving mounting posts so that the unused shelf apertures are partially closed so as not to derrogate from the function of the shelf as a supporting device for various items to be supported or displayed.
Inventors
- 👤 Robert W. Lackey
- 👤 James L. Gebhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:20
CPC Classifications
A; A47; A47B; A47B87/00; A47B87/02; A47B87/0207; A47B87/0223
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
145 words
Support structure for a planar shelf element having an upper and a lower surface and comprising an aperture formed in said planar element, a support sleeve projecting downwardly from said lower surface of said planar element and having an inner surface at the upper end thereof disposed in substantial coincidence with said aperture, support means mounted on the inner surface of said support sleeve, closure means including a tubular element having an outer flange in the plane of said planar shelf element and disposed within said aperture and mounted on said support means for closing at least a substantial part of said aperture, to provide a substantially continuous upper surface, and mounting post means selectively received by said support structure so that when said mounting post means is not arranged to project upwardly from said shelf element a substantially continuous shelf upper surface is provided.
Claim 2
Dependent Claim
145 words
Support structure for a planar shelf element having an upper and a lower surface and comprising an aperture formed in said planar element, a support sleeve projecting downwardly from said lower surface of said planar element and having an inner surface at the upper end thereof disposed in substantial coincidence with said aperture, support means mounted on the inner surface of said support sleeve, closure means including a tubular element having an outer flange in the plane of said planar shelf element and disposed within said aperture and mounted on said support means for closing at least a substantial part of said aperture, to provide a substantially continuous upper surface, and mounting post means selectively received by said support structure so that when said mounting post means is not arranged to project upwardly from said shelf element a substantially continuous shelf upper surface is provided.
Claim 3
Dependent Claim
22 words
Support structure according to claim 1 wherein said aperture and the inner surface of said sleeve are of substantially the same configuration.
Claim 4
Dependent Claim
17 words
Support structure according to claim 1 wherein said planar shelf element and said sleeve are integrally formed.
Claim 5
Dependent Claim
17 words
Support structure according to claim 1 wherein said support means comprises an inner flange on said sleeve.
Claim 6
Dependent Claim
37 words
Support structure according to claim 4 wherein said support means comprises a plurality of radial support elements supported by said inner flange and integral with at least a part of said closure means to provide support therefor.
Claim 7
Dependent Claim
33 words
Support structure according to claim 1 wherein said flange is smaller than but of similar configuration to said aperture so as to define a clearance passage about said flange and within said aperture.
Claim 8
Dependent Claim
20 words
Support structure according to claim 5 wherein said tubular element is integral with and interposed between said radial support elements.
Claim 9
Dependent Claim
33 words
Support structure according to claim 1 wherein a first tubular support post is telescopically mounted within said support sleeve and having an end thereof in engagement with a part of said support means.
Claim 10
Dependent Claim
22 words
Support structure according to claim 8 wherein said tubular post is mounted within said support sleeve by means of a pressed fit.
Claim 11
Dependent Claim
17 words
Support structure according to claim 5 wherein said radial support elements are integral with said tubular element.
Claim 12
Dependent Claim
67 words
Support structure according to claim 8 wherein a second tubular support post is telescopically mounted within said support sleeve and disposed about said outer flange and having an end thereof in engagement with the part of said support means which is opposite from the part with which said first support post is in engagement to afford support for another shelf element disposed above said planar shelf element.
Claim 13
Dependent Claim
21 words
Support structure according to claim 8 wherein said tubular post constitutes a receptacle for receiving a part of a removable castor.
Claim 14
Dependent Claim
14 words
Support structure according to claim 1 which is formed by an injection molding procedure.
Claim 15
Dependent Claim
18 words
Support structure according to claim 1 wherein an integral peripheral skirt is disposed about said planar shelf element.
References Cited (Backward Citations)
US3858529A
Cited
US4467927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |