US3602961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for clamping a bundle of paper
Assignee: Tsubakimoto Chain Co
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Filing: 1969-12-11
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Granted: 1971-09-07
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Expires: 1989-12-11
Abstract
Abstract For the transfer of a bundle of paper, the end of the paper bundle is grasped and drawn by a clamp device. By utilizing the flexibility of the paper bundle, clamping pressure required is made as low as possible so as to protect the end portion of the bundle. A lower clamp seat for contact with the lowermost surface of the paper bundle is inclined downward toward the end of the paper bundle, while a pressing portion of an upper clamp seat for pressing the upper surface of the bundle is positioned closer to the end of the bundle than the highest portion of the lower clamp seat.
Inventors
- 👤 Seiya Shibata
- 👤 Akitoshi Yamasaki
- 👤 Isokazu Shimono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:22
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/90; B65H; B65H5/00; B65H5/08; B65H5/14; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/422; B65H2301/4224; B65H2301/42242; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44573
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A device for clamping a bundle of papers comprising a lower clamp seat having a lower seat face formed of elastic material for receiving the under surface of an edge portion of a paper bundle, an upper clamp seat having an upper seat face formed of elastic material for pressing the upper surface of the edge portion of the paper bundle toward the lower seat face, a guide rod extending upwardly from said clamp seat for guiding said upper clamp seat which is mounted on said guide rod for movement in a vertical direction along the length of said guide rod toward and away from said lower clamp seat, said lower seat face having an upwardly facing upper surface in the form of an inclined plane sloping upwardly from a point adjacent said guide rod and smoothly merging at its highest point into a curved downwardly extending surface, said upper seat face having a downward facing lower surface including a paper pressing surface formed at the intersection of a horizontal planar portion and an upwardly extending arcuate surface for pressing the edge portion of the paper bundle downwardly against said lower clamp seat, said pressing portion being disposed closer to the guide rod and said edge of the paper bundle than said highest point of the upper surface of said lower seat face.
Claim 2
Independent Claim
223 words
A device for clamping a bundle of papers comprising a lower clamp seat having a lower seat face formed of elastic material for receiving the under surface of an edge portion of a paper bundle, an upper clamp seat having an upper seat face formed of elastic material for pressing the upper surface of the edge portion of the paper bundle toward the lower seat face, a guide rod extending upwardly from said clamp seat for guiding said upper clamp seat which is mounted on said guide rod for movement in a vertical direction along the length of said guide rod toward and away from said lower clamp seat, said lower seat face having an upwardly facing upper surface in the form of an inclined plane sloping upwardly from a point adjacent said guide rod and smoothly merging at its highest point into a curved downwardly extending surface, said upper seat face having a downward facing lower surface including a paper pressing surface formed at the intersection of a horizontal planar portion and an upwardly extending arcuate surface for pressing the edge portion of the paper bundle downwardly against said lower clamp seat, said pressing portion being disposed closer to the guide rod and said edge of the paper bundle than said highest point of the upper surface of said lower seat face.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |