US4621876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment drawer support
Assignee: AG Communication Systems Corp
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Filing: 1985-09-13
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Granted: 1986-11-11
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Expires: 2005-09-13
Abstract
Abstract A support for a vertically oriented equipment drawer including a plurality of guide rollers and a band roller attached to a lower edge thereof, the guide roller riding in a lower guide track positioned on a supporting equipment floor and the band roller rolling on a band of flexible material layed out in the path of the roller as the equipment drawer is withdrawn from an equipment frame. A tensile force is applied to the band to take up slack and optionally to exert a force on the band roller to permit the equipment drawer to automatically retract back into the equipment frame. A latch is included to engage the band when the equipment drawer is in a withdrawn position to prevent automatic retraction of the equipment drawer. Flat guide rollers engaging an upper guide track are attached to an upper edge of the equipment drawer to prevent lateral movement thereof.
Inventors
- 👤 William A. Reimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:29
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/40; A47B88/42; A47B88/483; A47B88/487; A47B2210/00; A47B2210/0002; A47B2210/0029; A47B2210/0043; A47B2210/0051; A47B2210/0056; A47B2210/0062
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
156 words
A support for an equipment drawer, said support comprising: an equipment frame mounted to a supporting surface; a band roller attached to said drawer; a band of flexible material positioned between said roller and said supporting surface, said band attached to said equipment frame via a first end and including a second end, said first end attached to said equipment frame to anchor and position said band relative to said equipment frame, said roller bearing against said band to support said drawer in rolling movement and said band adapted to provide a rolling surface for said band roller, to prevent said roller from directly contacting said supporting surface, and to engage said supporting surface while protecting said supporting surface from damage; and an elastic means connected between said drawer and said band second end, said elastic means taking up slack in said band when said drawer is rolled into a retracted position within said equipment frame.
Claim 2
Dependent Claim
156 words
A support for an equipment drawer, said support comprising: an equipment frame mounted to a supporting surface; a band roller attached to said drawer; a band of flexible material positioned between said roller and said supporting surface, said band attached to said equipment frame via a first end and including a second end, said first end attached to said equipment frame to anchor and position said band relative to said equipment frame, said roller bearing against said band to support said drawer in rolling movement and said band adapted to provide a rolling surface for said band roller, to prevent said roller from directly contacting said supporting surface, and to engage said supporting surface while protecting said supporting surface from damage; and an elastic means connected between said drawer and said band second end, said elastic means taking up slack in said band when said drawer is rolled into a retracted position within said equipment frame.
Claim 3
Dependent Claim
102 words
A support as claimed in claim 1, wherein: said equipment drawer is of vertical construction, said band roller is attached at a lower edge of said drawer proximate a front edge thereof, said equipment frame further includes a lower guide track and a drawer slot adapted to receive said equipment drawer, and said equipment drawer further includes at least a lower guide roller attached to said drawer lower edge proximate a rear edge thereof, said lower guide roller engaging and rolling on said lower guide track, said band roller and said lower guide roller guiding and supporting said drawer in rolling movement.
Claim 4
Dependent Claim
28 words
A support as claimed in claim 1, wherein: said elastic means includes a spring attached to an anchor which is attached to a front column of said drawer.
Claim 5
Dependent Claim
33 words
A support as claimed in claim 1, wherein: said elastic means includes a spring attached to an anchor which is attached to a lower column of said drawer proximate said drawer lower edge.
Claim 6
Dependent Claim
52 words
A support as claimed in claim 1, wherein: said band is wound around a portion of said roller and said elastic means is adapted to exert a tensile force on said band thereby to cause said roller to rotate in a direction to cause said drawer to roll towards its retracted position.
Claim 7
Dependent Claim
37 words
A support as claimed in claim 5, wherein: said drawer includes band retention means engaging said band when said drawer is positioned in a withdrawn position out of said equipment frame to prevent said drawer from retracting.
Claim 8
Dependent Claim
72 words
A support as claimed in claim 6, wherein: said band retention means includes a latch attached to said drawer, said latch includes a biased sliding button including a pair of blades and said band includes a plurality of pairs of catches formed in opposite edges of said band, said blades engaging said catches to retain said band in said withdrawn position and to prevent movement of said band relative to said drawer.
Claim 9
Dependent Claim
74 words
A support as claimed in claim 2, wherein: said second roller includes a circumferential tread and a pair of sloping sidewalls and said lower guide track includes a groove with a flat bottom and and a pair of sloping sidewalls diverging from said flat bottom to a top of said guide track, said roller riding in said guide track to support and guide said drawer to maintain alignment of said drawer with said slot.
Claim 10
Dependent Claim
73 words
A support as claimed in claim 8, wherein: said support includes a third roller positioned between said second roller and said band roller, said third roller constructed in a manner similar to said second roller and said third roller riding in said lower guide track when said drawer is rolled into a retracted position to support said drawer and to lift said band roller and said band from contact with said supporting surface.
Claim 11
Dependent Claim
86 words
A support as claimed in claim 2, wherein: said drawer includes at least one upper guide roller attached to an upper surface of said drawer and rotating about a vertical axis, and said equipment frame includes an upper guide track of inverted U-shaped cross-section extending longitudinally in and at an upper end of said drawer slot, said upper guide roller riding within said upper guide track to guide said upper end of said drawer as said drawer is rolled between said retracted and said extended positions.
Claim 12
Dependent Claim
42 words
A support as claimed in claim 1, wherein: said band includes a layer of adaptive material attached to an outer surface thereof, said adaptive material layer engaging said supporting surface to support said band and to protect said supporting surface from damage.
Claim 13
Dependent Claim
44 words
A support as claimed in claim 11, wherein: said supporting surface includes a rug including a shag pile like surface positioned thereon and said adaptive material layer includes a plurality of stubby projections extending down through said shag pile to engage said supporting surface.
References Cited (Backward Citations)
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Cited
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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) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |