Patent US3574437A successfully refreshed from Google Patents.
US3574437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawer slide construction
Assignee: Grant Industries Inc
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Filing: 1969-02-14
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Granted: 1971-04-13
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Expires: 1989-02-14
Abstract
Abstract A self-closing slideable drawer is provided with tracks on each side having a roller vertically offset from its track adjacent its rear, which roller cooperates with a corresponding stationary track on each side of the cabinet, which tracks have a roller vertically offset therefrom adjacent its respective front, and which roller is received within its mating drawer track. One set of rollers on one side of the drawer has a smaller width than the other side, and the tracks have stops for in and out position of the drawer.
Inventors
- 👤 Robert R Stein
- 👤 Stanley H Coe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:57
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/40; A47B88/483; A47B88/487; A47B88/453; A47B88/46; A47B88/467; A47B2210/00; A47B2210/0002; A47B2210/0018; A47B2210/0029; A47B2210/0043; A47B2210/0051; A47B2210/0059
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
186 words
A drawer slide assembly for reciprocally supporting a drawer for movement into and out of an opening in a cabinet, comprising first and second tracks on each side of the cabinet and aligned with the drawer opening formed therein, said first and second tracks being parallel and vertically offset, said first tracks adapted to be secured to said cabinet and said second tracks adapted to be secured to said drawer, each of said first tracks having a vertically offset flange adjacent its forward end and adjacent the drawer opening, each of said second tracks having a vertically offset flange adjacent its end disposed most remotely from said drawer opening, and rollers journaled on each of said flanges, the rollers journaled on said first tracks flanges being in rolling contact with said second tracks and the rollers journaled on the flanges of the second tracks being in rolling engagement with said first tracks, said drawer and said second tracks being movable with respect to said first tracks, the rollers on one side of said drawer opening having a width less than the width of their mating tracks.
Claim 2
Dependent Claim
186 words
A drawer slide assembly for reciprocally supporting a drawer for movement into and out of an opening in a cabinet, comprising first and second tracks on each side of the cabinet and aligned with the drawer opening formed therein, said first and second tracks being parallel and vertically offset, said first tracks adapted to be secured to said cabinet and said second tracks adapted to be secured to said drawer, each of said first tracks having a vertically offset flange adjacent its forward end and adjacent the drawer opening, each of said second tracks having a vertically offset flange adjacent its end disposed most remotely from said drawer opening, and rollers journaled on each of said flanges, the rollers journaled on said first tracks flanges being in rolling contact with said second tracks and the rollers journaled on the flanges of the second tracks being in rolling engagement with said first tracks, said drawer and said second tracks being movable with respect to said first tracks, the rollers on one side of said drawer opening having a width less than the width of their mating tracks.
Claim 3
Dependent Claim
26 words
A drawer slide structure, as in claim 1, wherein the rearward portions of said first tracks are downwardly inclined from a point intermediate of their ends.
Claim 4
Dependent Claim
31 words
A drawer slide structure in accordance with claim 2, further including the forward portions of said second tracks being upwardly inclined from the horizontal from a point intermediate from their ends.
Claim 5
Dependent Claim
26 words
A drawer slide structure in accordance with claim 3, wherein the angle of inclination of the first and second tracks is from about 2*to about 4*.
Claim 6
Dependent Claim
23 words
A drawer slide structure in accordance with claim 4, wherein the angle of inclination upwardly is equal to the angle of inclination downwardly.
Claim 7
Dependent Claim
27 words
A drawer slide structure as in claim 1, wherein said tracks have horizontal surfaces spaced vertically apart a distance greater than the diameter of their mating rollers.
Claim 8
Dependent Claim
35 words
A drawer slide structure in accordance with claim 6, wherein one of said surfaces has a normally directed shoulder parallel to the tracks, and defining a space greater than the width of said mating rollers.
Claim 9
Dependent Claim
27 words
A slide structure in accordance with claim 1, wherein said second tracks have stop means to limit the extent of movement of said drawer within predetermined limits.
Claim 10
Dependent Claim
43 words
A drawer slide structure in accordance with claim 8, wherein said stop means include partially struck-out portions from said second tracks, a finger extending outwardly from the flange of the first tracks, which fingers cooperate with corresponding struck-out portions of said second tracks.
Claim 11
Dependent Claim
50 words
Apparatus in accordance with claim 9, wherein the side panels of the drawer are of a height less than the height of the drawer opening by a distance at least as great as the outwardly struck portions performing the stops, so as to allow removal of the drawer by lifting.
References Cited (Backward Citations)
US2747943A
Cited
US2739028A
Cited
US2871085A
Cited
GB803331A
Cited
US3243247A
Cited
US3328106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |