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US4176753A Expired / Lapsed US ⏱️ 0.0 years remaining

Hanging file support frame

Assignee: Hunt Holdings Inc
•
Filing: 1978-08-09
•
Granted: 1979-12-04
•
Expires: 1998-08-09
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Abstract

Abstract A hanging file support frame has a pair of file folder support rails and four corner fittings mounted on legs. Each corner fitting has a bottom wall, a rear wall and a flexible top wall forming a first opening for the reception of one end of a rail. The top and bottom walls form a front entry into the first opening for the passage of said one end of a rail into said first opening in a direction transverse to the length of the rail. The rear wall is substantially thicker than the top wall and the top wall is cantilevered from the rear portion of the rear wall. Flanges releasably lock the rail end into the first opening. A transverse member having hollow ends has one end passing through a second opening in the rear wall. A rail backing wall in the first opening of each corner fitting depends from the top wall and has a boss extending toward the second opening and received in the hollow end of a transverse member for restraining the movement of the depending wall and the top wall to prevent inadvertent disengagement of a rail end from the corner fitting.

Inventors

  • 👤 Steven W. Godfrey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 11:34
CPC Classifications
B; B42; B42F; B42F15/00; B42F15/007; B42F15/0082; B42F15/0094; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342; Y10T403/343

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 233 words
A hanging file folder support frame comprising: a pair of file folder support rails, four corner fittings, legs supporting the corner fittings in an elevated position, each corner fitting having a bottom wall, a rear wall, and a flexible top wall forming a first opening for the reception of one end of a rail, the top and bottom walls forming a front entry into said first opening for the passage of said one end of a rail into said first opening in a direction transverse to the length of the rail, said rear wall being substantially thicker than the top wall, and the top wall being cantilevered from the rear portion of the rear wall, means integral with the top and bottom walls of each corner fitting for releasably locking the rail end into the first opening, a pair of transverse members each having hollow ends, the rear wall of each corner fitting having a second opening therethrough for the reception of one end of a transverse member, and a rail backing wall in said first opening of each corner fitting depending from the top wall and having a boss extending towards the second opening in the rear wall and received in the hollow end of a transverse member for restraining the movement of the depending wall and the top wall to prevent inadvertent disengagement of a rail end from the corner fitting.
Claim 2
Dependent Claim 233 words
A hanging file folder support frame comprising: a pair of file folder support rails, four corner fittings, legs supporting the corner fittings in an elevated position, each corner fitting having a bottom wall, a rear wall, and a flexible top wall forming a first opening for the reception of one end of a rail, the top and bottom walls forming a front entry into said first opening for the passage of said one end of a rail into said first opening in a direction transverse to the length of the rail, said rear wall being substantially thicker than the top wall, and the top wall being cantilevered from the rear portion of the rear wall, means integral with the top and bottom walls of each corner fitting for releasably locking the rail end into the first opening, a pair of transverse members each having hollow ends, the rear wall of each corner fitting having a second opening therethrough for the reception of one end of a transverse member, and a rail backing wall in said first opening of each corner fitting depending from the top wall and having a boss extending towards the second opening in the rear wall and received in the hollow end of a transverse member for restraining the movement of the depending wall and the top wall to prevent inadvertent disengagement of a rail end from the corner fitting.
Claim 3
Dependent Claim 43 words
A hanging file folder support frame in accordance with claim 1 in which the means for releasably locking the rail end into the first opening comprises an upwardly extending flange on the bottom wall and a downwardly extending flange on the top wall.
Claim 4
Dependent Claim 31 words
A hanging file folder support frame in accordance with claim 1 in which the boss on the rail backing wall tapers inwardly as it extends away from the rail backing wall.

References Cited (Backward Citations)

US3006669A Cited
US3360883A Cited
US4030610A Cited
US4049127A Cited
US4091933A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-12-03 1983-06-04 1983-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-12-03 1987-06-04 1987-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-12-03 1991-06-04 1991-12-04 $7700.00 Window Closed / Lapsed

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