Patent US5142760A successfully refreshed from Google Patents.
US5142760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulating idler roll
Assignee: Xerox Corp
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Filing: 1989-06-01
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Granted: 1992-09-01
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Expires: 2009-06-01
Abstract
Abstract A one piece, low cost, self-loading, articulating and hard surfaced idler roll is provided for use in a xerographic copying machine or the like. The idler roll includes an outer core with a surface of sufficient hardness to be non-compliant when sheet material and a drive roll comes into contact with it. A compliant material is positioned between a shaft which can be hollow and the outer core in order to complete the one piece structure and allow the idler roll to articulate about the shaft to diminish skewed entry of sheets into the nip formed between the idler roll and the drive roll.
Inventors
- 👤 Conrad J. Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:06
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; B; B65; B65H; B65H27/00; B65H2404/00; B65H2404/10; B65H2404/14; B65H2404/143; B65H2404/18; G03G2215/00; G03G2215/00362; G03G2215/00367; G03G2215/00371; G03G2215/00405; G03G2215/00535; G03G2215/00556; G03G2215/00561; G03G2215/00679
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A copy sheet registration nip adapted to deskew incoming copy sheets, comprising: a drive roll; and a one piece, low cost, self-loading, articulating idler roll, said idler roll including an outer core member having an outer surface of sufficient hardness to be non-compliant when sheet material and said drive roll comes into contact with it, a shaft member and a compliant material positioned between said shaft member and outer core member, said compliant material being adapted to be deformed axially relative to said shaft member by said outer core member during articulation of said outer surface in order to allow said outer surface of said idler roll to articulate on said shaft member for sheet deskewing purposes.
Claim 2
Dependent Claim
117 words
A copy sheet registration nip adapted to deskew incoming copy sheets, comprising: a drive roll; and a one piece, low cost, self-loading, articulating idler roll, said idler roll including an outer core member having an outer surface of sufficient hardness to be non-compliant when sheet material and said drive roll comes into contact with it, a shaft member and a compliant material positioned between said shaft member and outer core member, said compliant material being adapted to be deformed axially relative to said shaft member by said outer core member during articulation of said outer surface in order to allow said outer surface of said idler roll to articulate on said shaft member for sheet deskewing purposes.
Claim 3
Dependent Claim
14 words
The idler roll of claim 1, wherein said compliant material is a foam-like substance.
Claim 4
Dependent Claim
26 words
The idler roll of claim 2, wherein said foam-like substance includes inner and outer surfaces and an adhesive material positioned on said inner and outer surfaces.
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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) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |