US3722964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible drawer support
Assignee: Oxford Pendaflex Corp
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Filing: 1971-07-07
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Granted: 1973-03-27
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Expires: 1991-07-07
Abstract
Abstract An extensible drawer support for use with a file cabinet or the like includes a case mounting rail, a suspension rail, and a drawer mounting rail. The suspension rail is generally S-shaped in cross section with the upper portion thereof being supported on a spherical bearing retained within a flange extending inwardly from an intermediate portion of the case mounting rail. The bottom portion of the drawer mounting rail extends into the lower portion of the extension rail and is supported on a similar bearing within the suspension rail. Two additional spherical bearings serve to fix the position of the suspension rail relative to the case mounting rail and drawer rail, respectively.
Inventors
- 👤 J Chitester
- 👤 F Jonas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:33
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/40; A47B88/49; A47B88/493; A47B88/44; A47B88/45; A47B2210/00; A47B2210/0002; A47B2210/0029; A47B2210/0032; A47B2210/0035; A47B2210/0051; A47B2210/0059; A47B2210/0064; A47B2210/007; A47B2210/0072
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
329 words
An extensible drawer support for use with a cabinet drawer or the like, comprising on each side a case mounting rail having an inner horizontal flange extending from an intermediate portion thereof and terminating in a vertical upwardly extending portion, a suspension rail generally S-shaped in cross section with the upper portion thereof being hooked over said flange, a drawer mounting rail including a bottom flange extending toward said suspension rail and terminating in a vertically downwardly directed portion, and at least four bearings vertically arrayed, the top one of said bearings supporting said suspension rail on said mounting rail flange, the bottom of said suspension rail flange resting on the bottom one of said bearings to support said drawer member rail on said suspension rail, the third of said bearings rolling in a track defined by the upper portion of said suspension rail and a portion of the case mounting rail below its said flange, the fourth of said bearings rolling in a track between the top of said drawer rail flange and a bottom portion of said suspension rail, a cable roller mounted on each drawer mounting rail toward the rear thereof, and first and second stabilizing cables, said first cable being anchored to the front end of one case mounting rail and the rear end of the other case mounting rail and passing around both of said rollers, said second cable being anchored to the front end of one case mounting rail and the rear end of the other case mounting rail and passing around both of said rollers, said second cable being anchored at the front of said other case Mounting rail and the rear end of said one case mounting rail and passing around both of said rollers, each of said case mounting rails being provided with at least one projecting extension containing an opening therein, at least one end of each said cable passing around the associated extension and back through said opening.
Claim 2
Dependent Claim
329 words
An extensible drawer support for use with a cabinet drawer or the like, comprising on each side a case mounting rail having an inner horizontal flange extending from an intermediate portion thereof and terminating in a vertical upwardly extending portion, a suspension rail generally S-shaped in cross section with the upper portion thereof being hooked over said flange, a drawer mounting rail including a bottom flange extending toward said suspension rail and terminating in a vertically downwardly directed portion, and at least four bearings vertically arrayed, the top one of said bearings supporting said suspension rail on said mounting rail flange, the bottom of said suspension rail flange resting on the bottom one of said bearings to support said drawer member rail on said suspension rail, the third of said bearings rolling in a track defined by the upper portion of said suspension rail and a portion of the case mounting rail below its said flange, the fourth of said bearings rolling in a track between the top of said drawer rail flange and a bottom portion of said suspension rail, a cable roller mounted on each drawer mounting rail toward the rear thereof, and first and second stabilizing cables, said first cable being anchored to the front end of one case mounting rail and the rear end of the other case mounting rail and passing around both of said rollers, said second cable being anchored to the front end of one case mounting rail and the rear end of the other case mounting rail and passing around both of said rollers, said second cable being anchored at the front of said other case Mounting rail and the rear end of said one case mounting rail and passing around both of said rollers, each of said case mounting rails being provided with at least one projecting extension containing an opening therein, at least one end of each said cable passing around the associated extension and back through said opening.
Claim 3
Dependent Claim
30 words
An extensible drawer support according to claim 1, wherein each end of each case mounting rail includes said projecting extension, and both ends of the cables pass around said extensions.
Claim 4
Dependent Claim
34 words
An extensible drawer support according to claim 1, wherein said drawer mounting rail includes a U-shaped channel for receiving a drawer flange, said U-shaped channel extending over the top of said S-shaped suspension rail.
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |