← Back to Patent Explorer
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
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag