US4091933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hanging file support frame
Assignee: Hunt Holdings Inc
•
Filing: 1977-02-10
•
Granted: 1978-05-30
•
Expires: 1997-02-10
Abstract
Abstract A hanging file support frame has a pair of channels each having a web portion and opposed hook portions for supporting file folders and has a pair of transverse members. Four corner fittings each have a substantially horizontal opening receiving one end of a transverse member. Each corner fitting also has a bead engaged by one of the hook portions of a channel and an integral resilient latch engaged by the other hook portion of said channel for releasably locking the channels to the fittings. Each corner fitting is supported by a leg. Advantageously, the channels have a plurality of lines of weakness and the corner fittings have opposed grooves for the reception of the hook portions of a channel to support a portion of the channel to be broken off at a line of weakness to adjust the length of the channel.
Inventors
- 👤 Robert L. Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:49
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; Y10T403/347
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
97 words
A hanging file folder support frame comprising: a pair of channels for supporting file folders each channel having a web portion and opposed spaced hook portions, four corner fittings each having a bead engaged by one of said channel hook portions and an integral latch below said bead and engaging the other of said channel hook portions for releasably locking the channels to the fittings on rotation of said channels to move the said other channel hook portions into engagement with the latches, and means supporting the corner fittings in a spaced relation in an elevated position.
Claim 2
Dependent Claim
97 words
A hanging file folder support frame comprising: a pair of channels for supporting file folders each channel having a web portion and opposed spaced hook portions, four corner fittings each having a bead engaged by one of said channel hook portions and an integral latch below said bead and engaging the other of said channel hook portions for releasably locking the channels to the fittings on rotation of said channels to move the said other channel hook portions into engagement with the latches, and means supporting the corner fittings in a spaced relation in an elevated position.
Claim 3
Dependent Claim
26 words
A frame in accordance with claim 1 in which the latch has a top spaced from the remainder of the corner fitting to enhance its resilience.
Claim 4
Dependent Claim
45 words
A frame in accordance with claim 1 in which each latch has an outer face sloping inwardly and adapted to be engaged by a channel hook portion to facilitate camming the latch to permit the engagement of the said channel hook portion by the latch.
Claim 5
Dependent Claim
44 words
A frame in accordance with claim 3 in which each latch has an inner face sloping outwardly and adapted to be engaged by a channel hook portion to facilitate camming the latch to permit the removal of said channel hook portion from the latch.
Claim 6
Dependent Claim
15 words
A frame in accordance with claim 1 in which the channels are of sheet metal.
Claim 7
Dependent Claim
15 words
A frame in accordance with claim 1 in which the channels are of extruded aluminum.
Claim 8
Dependent Claim
30 words
A frame in accordance with claim 1 in which the supporting means comprises a pair of transverse members each connected to a corner fitting and legs supporting the corner fittings.
Claim 9
Dependent Claim
66 words
A frame in accordance with claim 2 in which each latch has an outer inwardly sloping face and an inner outwardly sloping face adapted to be engaged by a channel hook portion to respectively facilitate camming the latch to permit it to engage the said channel hook portion and to facilitate camming the latch to permit the removal of said channel hook portion from the latch.
Claim 10
Dependent Claim
30 words
A frame in accordance with claim 8 in which the supporting means comprises a pair of transverse members each connected to a corner fitting and legs supporting the corner fittings.
Claim 11
Dependent Claim
15 words
A frame in accordance with claim 9 in which the channels are of sheet metal.
Claim 12
Dependent Claim
15 words
A frame in accordance with claim 9 in which the channels are of extruded aluminum.
Claim 13
Dependent Claim
58 words
A frame in accordance with claim 1 in which the channels have a plurality of lines of weakness and a corner fitting has opposed grooves for the reception of the hook portions of a channel to support a portion of the channel to be broken off at a line of weakness to adjust the length of the channel.
Claim 14
Dependent Claim
58 words
A frame in accordance with claim 2 in which the channels have a plurality of lines of weakness and a corner fitting has opposed grooves for the reception of the hook portions of a channel to support a portion of the channel to be broken off at a line of weakness to adjust the length of the channel.
Claim 15
Dependent Claim
58 words
A frame in accordance with claim 11 in which the channels have a plurality of lines of weakness and a corner fitting has opposed grooves for the reception of the hook portions of a channel to support a portion of the channel to be broken off at a line of weakness to adjust the length of the channel.
Claim 16
Dependent Claim
14 words
A frame in accordance with claim 12 in which the grooves are substantially horizontal.
References Cited (Backward Citations)
US2336802A
Cited
GB737226A
Cited
FR1136114A
Cited
US2852028A
Cited
US2810388A
Cited
US3208456A
Cited
GB1085945A
Cited
US3356228A
Cited
US3734300A
Cited
US3888355A
Cited
US3860119A
Cited
US3853227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |