US3743409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter assembly
Assignee: Xerox Corp
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Filing: 1971-06-11
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Granted: 1973-07-03
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Expires: 1991-06-11
Abstract
Abstract Cutter assembly for an electrostatographic machine using a continuous web of transfer material in which the metering web of the cutter assembly is driven by the drive for the drum of the machine and the cutter is driven by the metering roll. In response to an increase in web tension, the metering roll is allowed to slip with respect to the drum to relieve tension, thereby providing uniform web tension without affecting the accuracy of the cut.
Inventors
- 👤 J Fantuzzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:39
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6523; B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/25; B26D1/34; B26D1/38; B26D1/385; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/188; B65H23/1888; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/474; Y10T83/4766; Y10T83/4795; Y10T83/4809
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
38 words
The apparatus as defined in claim 1 wherein the cutting means is movable and further comprising means for drivingly connecting said cutting means to said metering means whereby said cutting means is driven by said web metering means.
Claim 2
Dependent Claim
44 words
The apparatus as defined in claim 3 wherein said means for drivingly connecting said metering means to said cutting means includes means for maintaining a predetermined ratio of movement between said cutting means and said metering means which controls the length of the cut.
Claim 3
Dependent Claim
264 words
In combination with an electrostatographic recording member, a cutting aPparatus for cutting a continuous web, having a powder image thereon, comprising: support means; a rotary cutter journaled for rotation in said support means; a metering means for metering the web from the recording member to the cutter comprising a drive roller and an idler roller both journaled for rotation in said support means; a dancer roller connected for reciprocal movement to said support means, the web from the recording member passing in tension over the dancer roller, between the drive roller and the idler roller and past the rotary cutter, increases and decreases in tension of the web effecting reciprocal movement in opposite directions of the dancer roller; means for drivingly connecting the drive roller to the rotary cutter, whereby the rotary cutter is rotated by rotation of said drive roller; drive means for rotating said drive roller, said drive means also driving said recording member, said drive means driving the drive roller at a surface speed slightly greater than the surface speed of said recording member; and control means for maintaining a substantially uniform web tension including a speed control means for decreasing the surface speed of said drive roller with respect to the surface speed of said recording member and operating means connected to said speed control means to operate said speed control means, said operating means being responsive to reciprocal movement of said dancer roller, said operating means operating said speed control means in response to movement of said dancer roller in one direction caused by an increase in web tension.
Claim 4
Dependent Claim
23 words
The apparatus as defined in claim 5 wherein said speed control means decreases the speed of the drive roller by interrupting driving connection.
Claim 5
Dependent Claim
61 words
The apparatus as defined in claim 5 wherein the speed control means is a clutch which disengages and engages the drive roller to the drive means, said operating means disengaging said clutch in response to movement of the dancer roller in said one direction and engaging said clutch in response to subsequent movement of said dancer roller in said opposite direction.
Claim 6
Dependent Claim
128 words
In combination with an electrostatographic recording member, a cutting apparatus for cutting a continuous web having a powder image thereon, comprising: movable cutting means for cutting the web; web metering means for metering the web to the cutting means from the surface of the recording member; means for drivingly connecting said cutting means to said metering means, whereby said cutting means is driven by said web metering means; and control means responsive to web tension for maintaining a substantially uniform web tension, said control means selectively changing the speed at which the metering means meters the web to the cutting means with respect to the speed at which the web is fed to the metering means from the recording member to thereby maintain a substantially uniform web tension.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |