US3774901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signature feeders
Assignee: McCain Manufacturing Corp
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Filing: 1971-03-29
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Granted: 1973-11-27
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Expires: 1991-03-29
Abstract
Abstract Improved operation of a cyclically operable signature gathering machine is achieved by latching the gripper, which feeds a signature from a hopper, against the signature pile in response to a command signal that signatures are not to be fed from the hopper.
Inventors
- 👤 W Mccain
- 👤 J Balla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:35
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/0808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
In a method of gathering signatures cyclically from hoppers to compose a book and delivering the signatures in juxtaposition to a conveyor incidental to producing books therefrom, and wherein a signature contained in one hopper is to be included in one book but omitted from another book, the step of controlling inclusion and omission by coding on a tape the production of books to specify inclusion and omission of signatures from a hopper, sensing the code and generating a signal commanding inclusion or omission of signatures, gripping and withdrawing signatures from the hopper and delivering the signatures to the conveyor so long as the command is for inclusion, and disabling signature gripping so long as the command is for omission.
Claim 2
Dependent Claim
120 words
In a method of gathering signatures cyclically from hoppers to compose a book and delivering the signatures in juxtaposition to a conveyor incidental to producing books therefrom, and wherein a signature contained in one hopper is to be included in one book but omitted from another book, the step of controlling inclusion and omission by coding on a tape the production of books to specify inclusion and omission of signatures from a hopper, sensing the code and generating a signal commanding inclusion or omission of signatures, gripping and withdrawing signatures from the hopper and delivering the signatures to the conveyor so long as the command is for inclusion, and disabling signature gripping so long as the command is for omission.
References Cited (Backward Citations)
US3260517A
Cited
US3608893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |