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US3726409A Expired / Lapsed US ⏱️ 0.0 years remaining

Suspension arrangement for plane objects

Assignee: Individual
•
Filing: 1970-10-02
•
Granted: 1973-04-10
•
Expires: 1990-10-02
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Abstract

Abstract A suspension arrangement for suspending a planar sheet of material having a fillet on one end thereof is composed of a horizontally disposed support rail having a hollow chamber therein and a horizontally extending slit communicating with the chamber. The horizontal slit is spaced in proximity to the lower portion of the hollow chamber and the hollow chamber vertically extends from the slit a distance greater than the width of the fillet. Accordingly, the planar sheet can be placed in the suspending apparatus simply by pushing the suspending edge directly into the slit, the fillet being narrow enough to fit entirely within the chamber above the slit so that it will be completely inserted as the sheet is pushed in and then serve to hold the sheet as it rests in the chamber.

Inventors

  • 👤 M Skousen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 04:27
CPC Classifications
B; B42; B42F; B42F15/00; B42F15/06; B42F15/066

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 157 words
A suspension arrangement for suspending a planar sheet of material from its edge, said sheet having a fillet integral with the edge from which the sheet is suspended, said fillet forming an acute angle with respect to said sheet, comprising: a horizontally disposed support rail of substantially rectangular cross-section and having a chamber therein horizontally extending at least the length of the sheet to be suspended, said chamber vertically extending a distancE greater than the width of said fillet, said support rail further having a longitudinally extending receiving slit formed in a vertical wall of said support rail such that the wall section below said slit together with the lower horizontal wall of said support rail forms a retaining member of hook-spaced cross-section, said slit communicating with said chamber and located in said support rail so that the distance from said slit to the top of said hollow chamber is greater than the width of said fillet.
Claim 2
Dependent Claim 157 words
A suspension arrangement for suspending a planar sheet of material from its edge, said sheet having a fillet integral with the edge from which the sheet is suspended, said fillet forming an acute angle with respect to said sheet, comprising: a horizontally disposed support rail of substantially rectangular cross-section and having a chamber therein horizontally extending at least the length of the sheet to be suspended, said chamber vertically extending a distancE greater than the width of said fillet, said support rail further having a longitudinally extending receiving slit formed in a vertical wall of said support rail such that the wall section below said slit together with the lower horizontal wall of said support rail forms a retaining member of hook-spaced cross-section, said slit communicating with said chamber and located in said support rail so that the distance from said slit to the top of said hollow chamber is greater than the width of said fillet.
Claim 3
Dependent Claim 24 words
A suspension arrangement according to claim 1, in which a fillet of hook-shaped cross-section is provided at the top of the rectangular support rail.
Claim 4
Dependent Claim 22 words
A suspension arrangement accordin to claim 1, the wall section below the slit forms an obtuse angle with the lower horizontal wall.

References Cited (Backward Citations)

US1741157A Cited
US2174201A Cited
US3185309A Cited
US3298374A Cited
US3570678A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-04-09 1976-10-09 1977-04-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-09 1980-10-09 1981-04-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-09 1984-10-09 1985-04-10 $7700.00 Window Closed / Lapsed

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