← Back to Patent Explorer
US3608504A Expired / Lapsed US ⏱️ 0.0 years remaining

Knockdown shelf structure

Assignee: Individual
•
Filing: 1969-06-02
•
Granted: 1971-09-28
•
Expires: 1989-06-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A plurality of sheet metal shelves are detachably connected at their corners to cornerposts made of metal members by shelfsupporting clips. A plurality of vertically extending and vertically spaced open-ended sockets are provided on the inner surface of one angle member of each post. The clips each have a downwardly extending lower end portion received in one of the sockets, an intermediate horizontal extending shelf-supporting portion and an upwardly extending shelf holding upper end portion. The shelves each have reinforcing flanges extending downwardly from a body portion of the shelf along the ends and side edges of the shelves and the end flanges extend behind and engage the shelf-holding end portions of the clips and rest on the intermediate portions of the clips. The end flanges have inwardly displaced portions providing horizontal clearance for the sockets to enable the shelves to be installed and removed.

Inventors

  • 👤 Walter R Peters

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 08:02
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 172 words
A shelf structure comprising four cornerposts in the form of longitudinally extending metal angle members, each angle member having vertically spaced portions punched inwardly to provide plural sockets open at both the tops and bottoms, a removable clip for each of at least one set of sockets located at the same horizontal level, each clip comprising a flat metal strip bent to provide a downwardly extending lower portion for downward insertion into its associated socket, an intermediate portion extending horizontally from said post for resting on the upper edge of the associated socket, and an upwardly extending portion, a sheet metal shelf for said clips having a flat body portion and reinforcing flanges extending downwardly at its sides and ends and then bent inwardly to provide bearing surfaces, the body and flange portions of the shelf adjacent each associated clip being bent inwardly sufficiently to provide clearance for the associated socket but leaving a load-bearing portion of an inwardly bent flange in supporting engagement with the horizontal portion of the associated clip.
Claim 2
Dependent Claim 172 words
A shelf structure comprising four cornerposts in the form of longitudinally extending metal angle members, each angle member having vertically spaced portions punched inwardly to provide plural sockets open at both the tops and bottoms, a removable clip for each of at least one set of sockets located at the same horizontal level, each clip comprising a flat metal strip bent to provide a downwardly extending lower portion for downward insertion into its associated socket, an intermediate portion extending horizontally from said post for resting on the upper edge of the associated socket, and an upwardly extending portion, a sheet metal shelf for said clips having a flat body portion and reinforcing flanges extending downwardly at its sides and ends and then bent inwardly to provide bearing surfaces, the body and flange portions of the shelf adjacent each associated clip being bent inwardly sufficiently to provide clearance for the associated socket but leaving a load-bearing portion of an inwardly bent flange in supporting engagement with the horizontal portion of the associated clip.

References Cited (Backward Citations)

US1059464A Cited
US1302882A Cited
US2909289A Cited
FR1442485A Cited
FR1452209A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-09-27 1975-03-29 1975-09-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-09-27 1979-03-29 1979-09-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-09-27 1983-03-29 1983-09-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag