US3131982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendible drawer support
Assignee: Steelcase Inc
•
Filing: 1962-03-02
•
Granted: 1964-05-05
•
Expires: 1982-03-02
Abstract
No abstract record available.
Inventors
- 👤 Earle C Bullock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:51
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/40; A47B88/49; A47B88/493; A47B2210/00; A47B2210/0002; A47B2210/001; A47B2210/0029; A47B2210/0032; A47B2210/0051; A47B2210/0059; A47B2210/0064; A47B2210/007; A47B2210/0081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
AN EXTENSIBLE DRAWER SUPPORT COMPRISING THE COMBINATION OF: FOUR CHANNEL SECTIONS; ONE SECTION FORMING A CASE RAIL, TWO SECTIONS BEING INTERCONNECTED AND FORMING A SUSPENSION RAIL, AND ONE SECTION FORMING A DRAWER RAIL; SAID DRAWER RAIL BEING TELESCOPICALLY RECEIVED INTO ONE CHANNEL SECTION OF SAID SUSPENSION RAIL; SAID CASE RAIL BEING TELESCOPICALLY RECEIVED INTO THE OTHER CHANNEL SECTION OF SAID SUSPENSION RAIL; SAID CHANNEL SECTIONS FORMING A PLURALITY OF RACEWAYS; BALLS POSITIONED IN SAID RACEWAYS FOR SEPARATING SAID RAILS AND CREATING A ROLLING CONTACT THEREBETWEEN; A VERTICAL OPENING EXTENDING THROUGH SAID SUSPENSION RAIL IN THE CENTER PORTION THEREOF; A DISC TYPE ROLLER IN SAID OPENING NORMALLY CONTACTING BOTH SAID CASE RAIL AND SAID DRAWER RAIL ON ITS PERIPHERY; SAID ROLLER DISC BEING MOUNTED ON AN AXLE; SAID AXLE BEING ROTATABLY AND IRREMOVABLY ANCHORED TO SAID SUSPENSION RAIL TO PREVENT VERTICAL AND HORIZONTAL MOVEMENT WITH RESPECT TO SAID SUSPENSION RAIL; AND STOP ELEMENTS FIXED BETWEEN SAID RAILS ALLOWING THE REAR END OF SAID DRAWER RAIL WHEN EXTENDED TO MOVE PAST THE FRONT END OF SAID CASE RAIL AND OUT OF CONTACT WITH SAID ROLLER THEREBY ENABLING A DRAWER MOUNTED ON SAID RAILS TO BE EXTENDED CLEAR OF THE ENCLOSING CABINET.
Claim 2
Dependent Claim
199 words
AN EXTENSIBLE DRAWER SUPPORT COMPRISING THE COMBINATION OF: FOUR CHANNEL SECTIONS; ONE SECTION FORMING A CASE RAIL, TWO SECTIONS BEING INTERCONNECTED AND FORMING A SUSPENSION RAIL, AND ONE SECTION FORMING A DRAWER RAIL; SAID DRAWER RAIL BEING TELESCOPICALLY RECEIVED INTO ONE CHANNEL SECTION OF SAID SUSPENSION RAIL; SAID CASE RAIL BEING TELESCOPICALLY RECEIVED INTO THE OTHER CHANNEL SECTION OF SAID SUSPENSION RAIL; SAID CHANNEL SECTIONS FORMING A PLURALITY OF RACEWAYS; BALLS POSITIONED IN SAID RACEWAYS FOR SEPARATING SAID RAILS AND CREATING A ROLLING CONTACT THEREBETWEEN; A VERTICAL OPENING EXTENDING THROUGH SAID SUSPENSION RAIL IN THE CENTER PORTION THEREOF; A DISC TYPE ROLLER IN SAID OPENING NORMALLY CONTACTING BOTH SAID CASE RAIL AND SAID DRAWER RAIL ON ITS PERIPHERY; SAID ROLLER DISC BEING MOUNTED ON AN AXLE; SAID AXLE BEING ROTATABLY AND IRREMOVABLY ANCHORED TO SAID SUSPENSION RAIL TO PREVENT VERTICAL AND HORIZONTAL MOVEMENT WITH RESPECT TO SAID SUSPENSION RAIL; AND STOP ELEMENTS FIXED BETWEEN SAID RAILS ALLOWING THE REAR END OF SAID DRAWER RAIL WHEN EXTENDED TO MOVE PAST THE FRONT END OF SAID CASE RAIL AND OUT OF CONTACT WITH SAID ROLLER THEREBY ENABLING A DRAWER MOUNTED ON SAID RAILS TO BE EXTENDED CLEAR OF THE ENCLOSING CABINET.
References Cited (Backward Citations)
US2174181A
Cited
US2762660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |