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US4300710A Expired / Lapsed US ⏱️ 0.0 years remaining

Continuous form feeder

Assignee: Gradco Japan Ltd
•
Filing: 1979-11-29
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Granted: 1981-11-17
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Expires: 1999-11-29
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Abstract

Abstract A continuous fan-folded form feeder is applied to a copying machine and has a receiver for the folded form from which the form is trained over the top of the copying machine platen and then beneath the platen to the rear of the copying machine for engagement by form tractors to be progressively fed in stages beneath the platen to a re-fold tray. Drive means for the tractors feeds the form step-by-step in selected increments of length.

Inventors

  • 👤 R. Clark Du Bois
  • 👤 John Hamma

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 15:58
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/02; B65H45/06; B65H45/10; B65H45/101; B65H45/1015; B65H20/00; B65H20/20; B65H20/22; B65H2701/00; B65H2701/10; B65H2701/18; B65H2701/182; B65H2701/1824

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 115 words
Fan-folded form copying apparatus comprising a copier for making successive copies of original sheets, a platen pivotally mounted on said copier; a fan-folded form receiving tray disposed horizontally above and rearwardly of said platen; a form refolding tray disposed horizontally below said platen and rearwardly of said copier; means for guiding the form from said receiving tray across said platen and beneath said platen to the rear of said copier; intermittently operable drive means for progressively feeding said form beneath said platen to the rear of said copier for gravitation to said refolding tray and means for mounting said drive means on the rear of said copier intermediate said receiving tray and said refolding tray.
Claim 2
Dependent Claim 115 words
Fan-folded form copying apparatus comprising a copier for making successive copies of original sheets, a platen pivotally mounted on said copier; a fan-folded form receiving tray disposed horizontally above and rearwardly of said platen; a form refolding tray disposed horizontally below said platen and rearwardly of said copier; means for guiding the form from said receiving tray across said platen and beneath said platen to the rear of said copier; intermittently operable drive means for progressively feeding said form beneath said platen to the rear of said copier for gravitation to said refolding tray and means for mounting said drive means on the rear of said copier intermediate said receiving tray and said refolding tray.
Claim 3
Dependent Claim 42 words
The copying apparatus of claim 1; said drive means including laterally spaced drive members having pins engageable in perforations in the side edges of said form, and means laterally adjustably mounting said drive means for adjustment to drive forms of different widths.
Claim 4
Dependent Claim 23 words
The copying apparatus of claim 1; said drive means having selective control means to cause intermittent feeding of different lengths of said form.
Claim 5
Dependent Claim 60 words
The copying apparatus of claim 1; said drive means including laterally spaced drive members having pins engageable in perforations in the side edges of said form, and means laterally adjustably mounting said drive means for adjustment to drive forms of different widths, said platen having laterally adjustable form guide means on its upper surface for guiding forms of different widths.
Claim 6
Dependent Claim 61 words
The copier of claim 1; said guide means including a bail extending horizontally above and forwardly of said receiving tray, for movement of the form over the bail, a bar extending transversely above said platen and below and forwardly of said bail, for movement of the form from above the bail in a path beneath said bar and across said platen.
Claim 7
Dependent Claim 135 words
The copying apparatus of claim 1; said drive means including laterally spaced drive members having pins engageable in perforations in the side edges of said form, and means laterally adjustably mounting said drive means for adjustment to drive forms of different widths, said guide means including a bail extending horizontally above and forwardly of said receiving tray, for movement of the form over the bail, a bar extending transversely above said platen and below and forwardly of said bail, for movement of the form from above the bail in a path beneath said bar and across said platen, and said platen having a pair of side guides for directing the path of said form, means mounting one side guide for adjustment laterally of said platen to correspond with the position of said adjustable drive means.
Claim 8
Dependent Claim 111 words
Continuous fan-folded form feeding apparatus applicable to a copying machine comprising: a plate adapted to be mounted at the rear of the copying machine, an elongated drive shaft rotably supported on said plate, a pair of laterally spaced form tractor means driven by said shaft and anchored on said plate; a motor for driving said shaft, control means to energize said motor to drive said shaft and shift said form incrementally; a platen pivotally supported by said plate to extend across the top of the copying machine, form receiving and refolding trays carried by said plate, and guide means to direct a form about said platen upon operation of said motor.
Claim 9
Dependent Claim 111 words
Continuous fan-folded form feeding apparatus applicable to a copying machine comprising: a plate adapted to be mounted at the rear of the copying machine, an elongated drive shaft rotably supported on said plate, a pair of laterally spaced form tractor means driven by said shaft and anchored on said plate; a motor for driving said shaft, control means to energize said motor to drive said shaft and shift said form incrementally; a platen pivotally supported by said plate to extend across the top of the copying machine, form receiving and refolding trays carried by said plate, and guide means to direct a form about said platen upon operation of said motor.
Claim 10
Dependent Claim 23 words
The form feeding apparatus of claim 7; said control means including selective means for de-energizing said motor following selected movement of said form.
Claim 11
Dependent Claim 36 words
The form feeding apparatus of claim 7; said control means including selective means for de-energizing said motor following selected movement of said form, stop means for arresting rotation of said shaft when said motor is de-energized.
Claim 12
Dependent Claim 116 words
Continuous fan-folded form feeding apparatus applicable to a copying machine comprising: a plate adapted to be mounted at the rear of the copying machine, an elongated drive shaft rotatably supported on said plate, a pair of laterally spaced form tractor means driven by said shaft and anchored on said plate; a motor for driving said shaft, control means to energize said motor to drive said shaft and shift said form incrementally; said control means including selective means for de-energizing said motor following selected movement of said form, stop means for arresting rotation of said shaft when said motor is de-energized, and overrunning clutch means between said motor and said shaft operable when said shaft is stopped.
Claim 13
Dependent Claim 116 words
Continuous fan-folded form feeding apparatus applicable to a copying machine comprising: a plate adapted to be mounted at the rear of the copying machine, an elongated drive shaft rotatably supported on said plate, a pair of laterally spaced form tractor means driven by said shaft and anchored on said plate; a motor for driving said shaft, control means to energize said motor to drive said shaft and shift said form incrementally; said control means including selective means for de-energizing said motor following selected movement of said form, stop means for arresting rotation of said shaft when said motor is de-energized, and overrunning clutch means between said motor and said shaft operable when said shaft is stopped.
Claim 14
Dependent Claim 29 words
The form feeding apparatus of claim 7; including means for adjusting the position of one of said tractor means laterally on said shaft relative to the other tractor means.
Claim 15
Dependent Claim 110 words
Continuous fan-folded form feeding apparatus applicable to a copying machine comprising: a plate adapted to be mounted at the rear of the copying machine, an elongated drive shaft rotatably supported on said plate, a pair of laterally spaced form tractor means driven by said shaft and anchored on said plate; a motor for driving said shaft, control means to energize said motor to drive said shaft and shift said form incrementally; including housing means for said tractor means and motor, a platen pivotally mounted on said housing means to extend above the copier, form receiving tray means on said housing means, and form refolding tray means mounted on said plate.
Claim 16
Dependent Claim 110 words
Continuous fan-folded form feeding apparatus applicable to a copying machine comprising: a plate adapted to be mounted at the rear of the copying machine, an elongated drive shaft rotatably supported on said plate, a pair of laterally spaced form tractor means driven by said shaft and anchored on said plate; a motor for driving said shaft, control means to energize said motor to drive said shaft and shift said form incrementally; including housing means for said tractor means and motor, a platen pivotally mounted on said housing means to extend above the copier, form receiving tray means on said housing means, and form refolding tray means mounted on said plate.

References Cited (Backward Citations)

US3281037A Cited
US3446554A Cited
US3578138A Cited
US3997093A Cited
US4087172A Cited
US4010882A Cited
US4189078A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-11-16 1985-05-18 1985-11-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-11-16 1989-05-18 1989-11-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-11-16 1993-05-18 1993-11-17 $7700.00 Window Closed / Lapsed

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