Patent US5131649A successfully refreshed from Google Patents.
US5131649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple output sheet inverter
Assignee: Xerox Corp
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Filing: 1991-01-03
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Granted: 1992-07-21
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Expires: 2011-01-03
Abstract
Abstract The invention includes a sheet feeding apparatus having a sheet pocket with a first end and a second end, rollers spaced a predetermined distance from the first end and including a plurality of sheet-feeder nips, one of the nips being an inlet nip for directing a sheet into the first end of the sheet pocket, and at least one other of the nips being an exit nip for directing a sheet out of the first end of the sheet pocket, and bypass rollers for selectively permitting a sheet to exit the sheet pocket via the second end thereof.
Inventors
- 👤 Michael J. Martin
- 👤 Vinod K. Agarwal
- 👤 Gerald M. Garavuso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:36
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6555; G03G15/6579; B; B65; B65H; B65H15/00; B65H15/004; G03G15/22; G03G15/23; G03G15/231; G03G15/232; G03G15/234; B65H2301/00; B65H2301/30; B65H2301/33; B65H2301/333; B65H2301/3331; B65H2301/33312; B65H2301/3332; G03G2215/00; G03G2215/00362; G03G2215/00367; G03G2215/00417; G03G2215/00421; G03G2215/0043; G03G2215/00438; G03G2215/00535; G03G2215/00675; G03G2215/00687; G03G2215/007; Y; Y10; Y10S; Y10S271/00; Y10S271/902
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
136 words
A sheet feeding apparatus, comprising: a sheet pocket having a first end and a second end; roller means spaced a predetermined distance from said first end and including a plurality of sheet-feeder nips, one of said nips being an inlet nip for directing a sheet into said first end of said sheet pocket, and at least one other of said nips being an exit nip for directing a sheet out of said first end of said sheet pocket; bypass means for selectively permitting a sheet to exit said sheet pocket via said second end thereof; a first sheet path extending from said bypass means to a duplex tray; a second sheet path extending from an exit nip to the duplex tray; a third sheet path extending from an exit nip to a to the inlet nip.
Claim 2
Dependent Claim
136 words
A sheet feeding apparatus, comprising: a sheet pocket having a first end and a second end; roller means spaced a predetermined distance from said first end and including a plurality of sheet-feeder nips, one of said nips being an inlet nip for directing a sheet into said first end of said sheet pocket, and at least one other of said nips being an exit nip for directing a sheet out of said first end of said sheet pocket; bypass means for selectively permitting a sheet to exit said sheet pocket via said second end thereof; a first sheet path extending from said bypass means to a duplex tray; a second sheet path extending from an exit nip to the duplex tray; a third sheet path extending from an exit nip to a to the inlet nip.
Claim 3
Dependent Claim
55 words
An apparatus according to claim 1, wherein said roller means includes first, second and third sheet-feeder nips, said first nip for directing a sheet into said first end of said sheet pocket, and said second and third nips each for directing a sheet in differing directions out of said first end of said sheet pocket.
Claim 4
Dependent Claim
40 words
An apparatus according to claim 2, further including means for selectively directing a sheet in said sheet pocket toward one of said second and third nips, said directing means including opposing laterally translatable guide surfaces for guiding a sheet therebetween.
Claim 5
Dependent Claim
15 words
An apparatus according to claim 3, wherein said directing means includes a pivotably translatable baffle.
Claim 6
Dependent Claim
19 words
An apparatus according to claim 3, wherein said directing means includes a movable shuttle with reversing rollers mounted thereon.
Claim 7
Dependent Claim
14 words
An apparatus according to claim 3, wherein said directing means includes pivotably translatable rollers.
Claim 8
Dependent Claim
21 words
An apparatus according to claim 1, wherein said roller means includes at least four rollers being rollingly engaged with each other.
Claim 9
Dependent Claim
23 words
An apparatus according to claim 1, wherein said roller means includes four rollers engaged to provide one inlet nip and two exit nips.
Claim 10
Dependent Claim
23 words
An apparatus according to claim 1, wherein said roller means includes three rollers engaged to provide one inlet nip and one exit nip.
Claim 11
Dependent Claim
18 words
An apparatus according to claim 1, wherein an image transfer station is disposed along the fourth sheet path.
Claim 12
Dependent Claim
21 words
An apparatus according to claim 1, further including a fifth sheet path connecting a sheet source with said fourth sheet path.
Claim 13
Dependent Claim
168 words
A sheet feeding apparatus, comprising: a sheet pocket having a first end and a second end; roller means spaced a predetermined distance from said first end for defining a plurality of spaced sheet-feeder nips, said roller means including at least four contiguous counter rotatable rollers to define at least three of said nips, a central one of said three nips being an inlet nip for directing a sheet into said first end of said sheet pocket, and at least the other two of said three nips being exit nips for directing a sheet out of said first end of said sheet pocket; and a directional change mechanism disposed between said roller means and said sheet pocket for directing a sheet exiting said sheet pocket to a selected exit nip, said directional change mechanism including a pair of reversing rollers for defining a reversing nip, and means for translating the reversing rollers to direct a sheet from said reversing nip to a selected one of said two exit nips.
Claim 14
Dependent Claim
168 words
A sheet feeding apparatus, comprising: a sheet pocket having a first end and a second end; roller means spaced a predetermined distance from said first end for defining a plurality of spaced sheet-feeder nips, said roller means including at least four contiguous counter rotatable rollers to define at least three of said nips, a central one of said three nips being an inlet nip for directing a sheet into said first end of said sheet pocket, and at least the other two of said three nips being exit nips for directing a sheet out of said first end of said sheet pocket; and a directional change mechanism disposed between said roller means and said sheet pocket for directing a sheet exiting said sheet pocket to a selected exit nip, said directional change mechanism including a pair of reversing rollers for defining a reversing nip, and means for translating the reversing rollers to direct a sheet from said reversing nip to a selected one of said two exit nips.
Claim 15
Dependent Claim
17 words
An apparatus according to claim 12, wherein said reversing rollers are mounted on a laterally movable shuttle.
Claim 16
Dependent Claim
17 words
An apparatus according to claim 12, wherein said reversing rollers are pivotably translatable about said reversing nip.
Claim 17
Dependent Claim
38 words
An apparatus according to claim 12, further including a spring backstop means for decelerating a sheet entering said sheet pocket through said inlet nip and for accelerating a sheet in said sheet pocket toward a desired exit nip.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-21 | 1996-01-20 | 1996-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-21 | 2000-01-20 | 2000-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-21 | 2004-01-20 | 2004-07-21 | $7700.00 | Window Closed / Lapsed |