US4424908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Custom changeable, knockdown shelf
Assignee: PRODUCTON PLUS Corp
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Filing: 1980-10-28
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Granted: 1984-01-10
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Expires: 2000-10-28
Abstract
Abstract A suspended shelf having hangers which support horizontal panels. The shelf hangers have a plurality of horizontal, vertically spaced crossbars each constructed of a U-shaped, downwardly opening channel member having a pair of side panels and a cross web connecting the panels extending between and longitudinally along the panels. A plurality of crossbeams, at least one near each end of each crossbar, extend between the panels and are spaced below the cross web. A plurality of manually removable sidebars extend between the adjacent vertically spaced ends of the crossbars. Each sidebar has a hook-shaped upper end for hanging over an upper one of the crossbeams and a lower, inwardly bent leg which extends along the underside of the cross web and above the crossbeam of a relatively lower crossbar to a downturned tip. Another pair of sidebars extend up from the uppermost crossbars and are fastened to the ceiling or other shelf support. A removable retaining means is inserted between each of the lower legs on the sidebar and its associated crossbeam for extending from the crossbeam to the leg for preventing significant movement of the leg and for interfering with the downturned tip to prevent withdrawal of the leg from the sidebar.
Inventors
- 👤 Walter E. Davitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:05
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/06; C25D17/08; B; B05; B05C; B05C13/00; C25D13/00; C25D13/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
205 words
A suspended, article supporting shelf comprising: (a) a plurality of generally horizontal, vertically spaced crossbars each having opposed spaced panels, a cross web extending between and longitudinally along said panels and at least one crossbeam near each end of each crossbar extending between said panels and spaced from said cross web; (b) a plurality of manually removable sidebars, some of said sidebars extending between the adjacent, vertically spaced ends of said crossbars and a pair of said sidebars extending upwardly from the uppermost one of said crossbars and fastened at their upper ends to a shelf support, each sidebar having an upper end which is bent around and shaped for hanging over an upper one of said crossbeams and a lower, inwardly bent leg extending along the underside of a cross web and above a crossbeam of a relatively lower one of said crossbars to a down turned tip; (c) removable retaining means inserted between each of said lower legs and its associated crossbeam for extending from said crossbeam to said leg for preventing significant movement of said leg and interfering with said turned down tip to prevent withdrawal of said leg; and (d) horizontal shelf panels extending transversely of and supported on said crossbars.
Claim 2
Dependent Claim
205 words
A suspended, article supporting shelf comprising: (a) a plurality of generally horizontal, vertically spaced crossbars each having opposed spaced panels, a cross web extending between and longitudinally along said panels and at least one crossbeam near each end of each crossbar extending between said panels and spaced from said cross web; (b) a plurality of manually removable sidebars, some of said sidebars extending between the adjacent, vertically spaced ends of said crossbars and a pair of said sidebars extending upwardly from the uppermost one of said crossbars and fastened at their upper ends to a shelf support, each sidebar having an upper end which is bent around and shaped for hanging over an upper one of said crossbeams and a lower, inwardly bent leg extending along the underside of a cross web and above a crossbeam of a relatively lower one of said crossbars to a down turned tip; (c) removable retaining means inserted between each of said lower legs and its associated crossbeam for extending from said crossbeam to said leg for preventing significant movement of said leg and interfering with said turned down tip to prevent withdrawal of said leg; and (d) horizontal shelf panels extending transversely of and supported on said crossbars.
Claim 3
Dependent Claim
36 words
A shelf in accordance with claim 1 wherein there is a second set of said crossbars, sidebars and retaining means as defined in claim 1 spaced from the first set for also supporting said shelf panels.
Claim 4
Dependent Claim
24 words
A rack in accordance with claim 1 wherein said retaining means comprises a hook-shaped upper end of another sidebar extending downwardly to another crossbar.
Claim 5
Dependent Claim
208 words
A suspended article supporting shelf comprising: (a) a plurality of generally horizontal, vertically spaced crossbars each having opposed spaced panels, a cross web extending between and longitudinally along said panels and at least one crossbeam near each end of each crossbar extending between said panels and spaced from said cross web; and (b) a plurality of manually removable sidebars some of said sidebars extending between the adjacent, vertically spaced ends of said crossbars, and a pair of said side bars extending upwardly from the uppermost one of said crossbars and fastened at their upperends to a shelf support, each sidebar having a hookshaped upper end bent around and shaped for hanging over a relatively higher sidebar and a lower end engaging the end edge of an associated crossbar and bent to form a leg extending along the underside of the cross web and above a crossbeam of said associated crossbar and thereafter bent around the inner side of the crossbeam of said associated crossbar; and (c) removable retaining means inserted between each of said lower legs and its associated crossbeam for extending from said crossbeam to said leg for preventing significant movement of said leg and interfering with said turned down tip to prevent withdrawal of said leg.
Claim 6
Dependent Claim
208 words
A suspended article supporting shelf comprising: (a) a plurality of generally horizontal, vertically spaced crossbars each having opposed spaced panels, a cross web extending between and longitudinally along said panels and at least one crossbeam near each end of each crossbar extending between said panels and spaced from said cross web; and (b) a plurality of manually removable sidebars some of said sidebars extending between the adjacent, vertically spaced ends of said crossbars, and a pair of said side bars extending upwardly from the uppermost one of said crossbars and fastened at their upperends to a shelf support, each sidebar having a hookshaped upper end bent around and shaped for hanging over a relatively higher sidebar and a lower end engaging the end edge of an associated crossbar and bent to form a leg extending along the underside of the cross web and above a crossbeam of said associated crossbar and thereafter bent around the inner side of the crossbeam of said associated crossbar; and (c) removable retaining means inserted between each of said lower legs and its associated crossbeam for extending from said crossbeam to said leg for preventing significant movement of said leg and interfering with said turned down tip to prevent withdrawal of said leg.
Claim 7
Dependent Claim
34 words
A shelf in accordance with claim 4 wherein there is a second set of said crossbars and sidebars as defined in claim 4 spaced from the first set for also supporting said shelf panels.
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) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |