US3970299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet registry device
Assignee: Union Camp Corp
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Filing: 1974-12-13
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Granted: 1976-07-20
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Expires: 1994-12-13
Abstract
Abstract A sheet registry device for use in a sheet-handling machine in which a constantly rotating brush exerts a force on the sheet to urge the sheet against a side guide and properly register such sheet in a cross-machine direction while the sheet is being removed in a direction parallel to the guiding surface of the side guide.
Inventors
- 👤 Emil J. Berger, Jr.
- 👤 John M. Mitchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:05
CPC Classifications
B; B65; B65H; B65H9/00; B65H9/16; B65H9/166; B65H9/10; B65H9/103; B65H9/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
230 words
A sheet registry device in a sheet-handling machine for aligning a sheet in a cross-machine direction comprising: means to support a sheet and convey such sheet aligned in a machine direction; a side guide positioned to align a sheet in a cross-machine direction; a constantly rotating brush having projecting bristles positioned in the path of the moving sheet and adapted to receive the sheet thereunder; a shaft for said brush positioned above said sheet to provide an oblique direction of rotation of said brush with respect to the edge of said sheet; supporting means to support said shaft; said shaft being tilted within a range of 5° to 30° from the perpendicular to the plane of the sheet and being angularly positioned so that the bristles in the outer edge of said brush exert a force on the top surface of the sheet and move said sheet in the direction of the side guide solely by the rotation of said brush; the ends of the bristles of the rotating brush exerting a force against the top surface of the sheet in a direction toward said side guide, the said force being sufficient to move the sheet from an edge thereof and still permit easy passage of the moving sheet through the bristles; whereby the said sheet will be urged against the side guide and be aligned in a cross-machine direction.
Claim 2
Dependent Claim
230 words
A sheet registry device in a sheet-handling machine for aligning a sheet in a cross-machine direction comprising: means to support a sheet and convey such sheet aligned in a machine direction; a side guide positioned to align a sheet in a cross-machine direction; a constantly rotating brush having projecting bristles positioned in the path of the moving sheet and adapted to receive the sheet thereunder; a shaft for said brush positioned above said sheet to provide an oblique direction of rotation of said brush with respect to the edge of said sheet; supporting means to support said shaft; said shaft being tilted within a range of 5° to 30° from the perpendicular to the plane of the sheet and being angularly positioned so that the bristles in the outer edge of said brush exert a force on the top surface of the sheet and move said sheet in the direction of the side guide solely by the rotation of said brush; the ends of the bristles of the rotating brush exerting a force against the top surface of the sheet in a direction toward said side guide, the said force being sufficient to move the sheet from an edge thereof and still permit easy passage of the moving sheet through the bristles; whereby the said sheet will be urged against the side guide and be aligned in a cross-machine direction.
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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |