Patent US4053092A successfully refreshed from Google Patents.
US4053092A
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Disengageable roll positioning apparatus
Assignee: Individual
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Filing: 1976-02-25
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Granted: 1977-10-11
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Expires: 1996-02-25
Abstract
Abstract An apparatus is provided for the rapid engagement and disengagement of a passive roll with a drive roll. The apparatus comprises a locking lever mechanism which positions a self-aligning roll-holding yoke assembly in a manner such as to form a precise nip line between the passive roll and drive roll.
Inventors
- 👤 Arthur Wayne Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:43
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/02; B65H20/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A roll positioning apparatus for urging a passive roll into engagement with a drive roll comprising a self-aligning yoke assembly cooperatively joined to a locking lever mchanism comprised of three interacting members pivotably connected at three sites and communicating between an adjustable anchor base and said yoke assembly, said three interacting members comprising: (1) a yoke anchor attached at one extremity to said yoke assembly and attached by means of an upper pivot pin at its opposite extremity to (2) a moving clevis which is attached by means of a middle pivot pin at its opposite extremity to (3) a lever which at its opposite extremity is attached by means of a lower pivot pin to an adjustable anchor base.
Claim 2
Dependent Claim
120 words
A roll positioning apparatus for urging a passive roll into engagement with a drive roll comprising a self-aligning yoke assembly cooperatively joined to a locking lever mchanism comprised of three interacting members pivotably connected at three sites and communicating between an adjustable anchor base and said yoke assembly, said three interacting members comprising: (1) a yoke anchor attached at one extremity to said yoke assembly and attached by means of an upper pivot pin at its opposite extremity to (2) a moving clevis which is attached by means of a middle pivot pin at its opposite extremity to (3) a lever which at its opposite extremity is attached by means of a lower pivot pin to an adjustable anchor base.
Claim 3
Dependent Claim
81 words
Apparatus of claim 1 wherein said three interacting members are operatively associated with an abutting means which stops the forward travel of the locking lever mechanism in a manner such that said middle pivot pin is positioned closer to said yoke assembly than either said upper or lower pivot pins, and the obtuse angle formed by the centers of said three pivot pins, having the apex at the center of said middle pivot pin, has a value between 130° and 175°.
References Cited (Backward Citations)
US3438423A
Cited
US3884407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |