US3825310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally reinforced drawer guide
Assignee: Barker Manufacturing Co Inc
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Filing: 1973-03-01
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Granted: 1974-07-23
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Expires: 1993-03-01
Abstract
Abstract An internally reinforced, molded plastic drawer guide for chests using center-guide construction. A guide having balanced strength and stiffness is produced by distributing glass fibers substantially uniformaly throughout the body of the guide, including regions spanning the joinder of the body''s component parts.
Inventors
- 👤 B Roemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:51
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/02; A; A47; A47B; A47B88/00; A47B88/40; A47B88/402; A47B2210/00; A47B2210/0002; A47B2210/0051; A47B2210/0056; A47B67/00; A47B67/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
A drawer guide including an elongate intermediate portion comprising an inverted U-shaped channel member having a pair of laterally outwardly projecting integral side rails disposed along the member''s upper margin, said portion comprising a polystyrene composition containing a minor proportion of glass fibers dispersed throughout said channel member and side rails, and oriented generally in the direction of said portion''s longitudinal axis and, mounting portions integrally joined to the intermediate portion adjacent either end thereof and adapted for supporting the intermediate portion between transversely extending, generally coplanar cabinet members, said mounting portions each including means defining a bore therein to accommodate means for attaching the guide to a cabinet member, each of said mounting portions comprising a polystyrene composition containing a minor proportion of glass fibers dispersed therein, said fibers being distributed in regions encircling said bores and spanning the joinder of said monting portions with said intermediate portion, whereby said bore-defining means is reinforced and a strong, unified, internally reinforced structure is produced.
Claim 2
Dependent Claim
164 words
A drawer guide including an elongate intermediate portion comprising an inverted U-shaped channel member having a pair of laterally outwardly projecting integral side rails disposed along the member''s upper margin, said portion comprising a polystyrene composition containing a minor proportion of glass fibers dispersed throughout said channel member and side rails, and oriented generally in the direction of said portion''s longitudinal axis and, mounting portions integrally joined to the intermediate portion adjacent either end thereof and adapted for supporting the intermediate portion between transversely extending, generally coplanar cabinet members, said mounting portions each including means defining a bore therein to accommodate means for attaching the guide to a cabinet member, each of said mounting portions comprising a polystyrene composition containing a minor proportion of glass fibers dispersed therein, said fibers being distributed in regions encircling said bores and spanning the joinder of said monting portions with said intermediate portion, whereby said bore-defining means is reinforced and a strong, unified, internally reinforced structure is produced.
Claim 3
Dependent Claim
28 words
The drawer guide of claim 1, wherein said polystyrene composition comprises a high impact polystyrene composition containing about 3 to about 7 percent by weight of glass fiber.
Claim 4
Dependent Claim
174 words
A unitary, internally reinforced drawer guide comprising an elongate intermediate portion including a pair of laterally spaced upstanding side rails integrally joined along their opposing lower margins by a horizontally disposed central web, and a pair of substantially vertically depending, laterally spaced flanges integrally joined to said web laterally inward of said side rails, said intermediate portion comprising a polystyrene composition having about 3 to about 10 percent by weight of glass fibers substantially uniformly dispersed therein including regions spanning the joinder of said rails and flanges with said web thus to reinforce said intermediate portion, and a pair of mounting portions integrally joined to said intermediate portion adjacent either end thereof, each portion including means defining a bore therein to accommodate attaching means, said mounting portions comprising a polystyrene composition having about 3 to about 10 percent by weight of glass fibers substantially uniformly dispersed therein including regions encircling said bores and spanning the joinder of said mounting portions with said intermediate portion, whereby a strong, unitary, internally reinforced drawer guide is produced.
Claim 5
Dependent Claim
174 words
A unitary, internally reinforced drawer guide comprising an elongate intermediate portion including a pair of laterally spaced upstanding side rails integrally joined along their opposing lower margins by a horizontally disposed central web, and a pair of substantially vertically depending, laterally spaced flanges integrally joined to said web laterally inward of said side rails, said intermediate portion comprising a polystyrene composition having about 3 to about 10 percent by weight of glass fibers substantially uniformly dispersed therein including regions spanning the joinder of said rails and flanges with said web thus to reinforce said intermediate portion, and a pair of mounting portions integrally joined to said intermediate portion adjacent either end thereof, each portion including means defining a bore therein to accommodate attaching means, said mounting portions comprising a polystyrene composition having about 3 to about 10 percent by weight of glass fibers substantially uniformly dispersed therein including regions encircling said bores and spanning the joinder of said mounting portions with said intermediate portion, whereby a strong, unitary, internally reinforced drawer guide is produced.
Claim 6
Dependent Claim
28 words
The drawer guide of claim 3, wherein said polystyrene composition comprises a high impact polystyrene composition containing about 3 to about 7 percent by weight of glass fiber.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |