US4344612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeder support assembly
Assignee: Unisys Corp
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Filing: 1980-05-12
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Granted: 1982-08-17
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Expires: 2000-05-12
Abstract
Abstract A sheet feeder support assembly is disclosed which is utilized to hold a sheet feeder in a raised position from its normal resting position on the printer without the requirement of any actual modifications to either the sheet feeder or the printer.
Inventors
- 👤 Walter F. Leise
- 👤 John J. Darcy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:01
CPC Classifications
B; B65; B65H; B65H1/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
136 words
A sheet feeder support assembly for use between a sheet feeding apparatus and its mounting frame to a printing mechanism, said support assembly comprising: a rigid support rod mounted on said mounting frame; a locking latch member slidably connected to said support rod and pivotably connected to said sheet feeding apparatus to support said sheet feeding apparatus in a raised position; and a torsion spring mounted between said locking latch member and said sheet feeding apparatus, one end of said spring connected to said locking latch member, the other end of said spring connected to said sheet feeding apparatus such that a lifting motion on said sheet feeding apparatus enables said spring to pivot said locking latch member and, in turn, causes said support rod to supportably engage the sheet feeding apparatus in said raised position.
Claim 2
Dependent Claim
136 words
A sheet feeder support assembly for use between a sheet feeding apparatus and its mounting frame to a printing mechanism, said support assembly comprising: a rigid support rod mounted on said mounting frame; a locking latch member slidably connected to said support rod and pivotably connected to said sheet feeding apparatus to support said sheet feeding apparatus in a raised position; and a torsion spring mounted between said locking latch member and said sheet feeding apparatus, one end of said spring connected to said locking latch member, the other end of said spring connected to said sheet feeding apparatus such that a lifting motion on said sheet feeding apparatus enables said spring to pivot said locking latch member and, in turn, causes said support rod to supportably engage the sheet feeding apparatus in said raised position.
Claim 3
Dependent Claim
32 words
The sheet feeder support assembly as set forth in claim 1, wherein said support rod is a "U"-shaped rod loosely connected at each of its ends to the sheet feeder mounting frame.
Claim 4
Dependent Claim
29 words
The sheet feeder support assembly as set forth in claim 2 wherein said sheet feeder mounting frame includes a rear rod upon which the sheet feeder is pivotably mounted.
Claim 5
Dependent Claim
42 words
The sheet feeder support assembly as set forth in claim 3 wherein said sheet feeder mounting frame further includes a forward rod for supporting the forward end of said sheet feeding apparatus when said sheet feeding apparatus is in a lowered position.
Claim 6
Dependent Claim
32 words
The sheet feeder support assembly as set forth in claim 4 wherein said "U"-shaped rod is pivotably connected at both ends to said forward mounting rod of said sheet feeding mounting frame.
Claim 7
Dependent Claim
29 words
The sheet feeder support assembly as set forth in claim 1 wherein said support rod passes through and is slidably journeled in a slot in said locking latch member.
Claim 8
Dependent Claim
48 words
The sheet feeder support assembly as set forth in claim 6 wherein said locking latch member is generally el shaped, said slot in said locking latch member being located along the longitudinal axis and near the end of the longer section of said el shaped locking latch member.
Claim 9
Dependent Claim
168 words
A sheet feeder support assembly for use between a sheet feeding apparatus and its mounting frame to a printing mechanism, said sheet feeder support assembly comprising: a "U"-shaped support rod rotatably mounted on a forward rod of said mounting frame; a locking latch means pivotably mounted upon said sheet feeding apparatus and slidably connected to said "U"-shaped support rod; and a torsion spring means axially mounted on said sheet feeding apparatus, one end of said spring means connected to said locking latch means, the other end of said spring means connected to said sheet feeding apparatus, said spring means for providing pivotal rotation actuation of said locking latch means such that when the forward end of said sheet feeding apparatus is raised, the locking latch means is thereby actuated by said torsion spring means to engage said "U"-shaped support rod in a supporting position, wherein said support rod supports said sheet feeder in a forward raised position so that the printing mechanism is made accessible to an operator.
Claim 10
Dependent Claim
168 words
A sheet feeder support assembly for use between a sheet feeding apparatus and its mounting frame to a printing mechanism, said sheet feeder support assembly comprising: a "U"-shaped support rod rotatably mounted on a forward rod of said mounting frame; a locking latch means pivotably mounted upon said sheet feeding apparatus and slidably connected to said "U"-shaped support rod; and a torsion spring means axially mounted on said sheet feeding apparatus, one end of said spring means connected to said locking latch means, the other end of said spring means connected to said sheet feeding apparatus, said spring means for providing pivotal rotation actuation of said locking latch means such that when the forward end of said sheet feeding apparatus is raised, the locking latch means is thereby actuated by said torsion spring means to engage said "U"-shaped support rod in a supporting position, wherein said support rod supports said sheet feeder in a forward raised position so that the printing mechanism is made accessible to an operator.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-16 | 1986-02-15 | 1986-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-16 | 1990-02-15 | 1990-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-16 | 1994-02-15 | 1994-08-17 | $7700.00 | Window Closed / Lapsed |