Patent US1222009A successfully refreshed from Google Patents.
Patent US3563536A successfully refreshed from Google Patents.
US3563536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for gripping paper sheets
Assignee: Adamovske Strojirny AS
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Filing: 1969-04-21
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Granted: 1971-02-16
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Expires: 1989-04-21
Abstract
Abstract A device to be used in printing presses and the like for gripping paper sheets during transportation thereof includes a pair of parallel shafts one of which is a carrier shaft and the other of which is a stop shaft. The stop shaft carries a plurality of rubber stops which are distributed therealong while the carrier shaft carries a plurality of springy grippers which are fixed thereto and extend therefrom into overlapping relation with respect to the several stops. The grippers are all made of springy flat leaf spring material. At their ends where they overlap the stops the grippers respectively carry rubber plates situated between the leaf springs and stops and directly engaging the latter when there is no sheet gripped between these rubber plates and rubber stops.
Inventors
- 👤 Rudolf Hanzlik
- 👤 Vladimir Drlik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:38
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/02; B65H29/04; B65H29/041; B65H29/045
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
147 words
A device to be used in a printing press or the like for gripping a paper sheet during transporting thereof, comprising a pair of parallel shafts one of which is a carrier shaft and the other of which is a stop shaft, a plurality of stops carried by and distributed along said stop shaft, a plurality of springy grippers respectively fixed to and carried by said carrier shaft and extending therefrom into overlapping relation with respect to said stops, respectively, said grippers each being made of a flat leaf spring, and said grippers respectively terminating in free end portions which respectively overlap said stops, and a plurality of yieldable elastomeric plates respectively carried by said free end portions of said grippers and situated between said free end portions thereof and said stops in engagement with the latter when there is no sheet between said plates and stops.
Claim 2
Independent Claim
147 words
A device to be used in a printing press or the like for gripping a paper sheet during transporting thereof, comprising a pair of parallel shafts one of which is a carrier shaft and the other of which is a stop shaft, a plurality of stops carried by and distributed along said stop shaft, a plurality of springy grippers respectively fixed to and carried by said carrier shaft and extending therefrom into overlapping relation with respect to said stops, respectively, said grippers each being made of a flat leaf spring, and said grippers respectively terminating in free end portions which respectively overlap said stops, and a plurality of yieldable elastomeric plates respectively carried by said free end portions of said grippers and situated between said free end portions thereof and said stops in engagement with the latter when there is no sheet between said plates and stops.
Claim 3
Dependent Claim
35 words
The combination of claim 1 and wherein said carrier shaft is formed with a plurality of grooves of dovetail cross section respectively receiving end portions of said grippers opposed to those which overlap said stops.
Claim 4
Dependent Claim
17 words
The combination of claim 1 and wherein said stops also are made of a yieldable elastomeric material.
Claim 5
Dependent Claim
16 words
The combination of claim 3 and wherein said plates and said stops are made of rubber.
Claim 6
Dependent Claim
33 words
The combination of claim 1 and wherein said springy grippers are respectively formed with cutouts situated between said shafts at intermediate portions of said grippers for reducing the cross section of said grippers.
Claim 7
Dependent Claim
38 words
The combination of claim 1 and wherein said springy grippers are respectively formed at said elastomeric plates with openings, and means connected to said plates and respeCtively extending through said openings for fastening said plates to said grippers.
Claim 8
Dependent Claim
39 words
The combination of claim 6 and wherein said means which fixes said plates to said grippers includes projections integral with said plates, respectively extending through said openings thereof, and engaging said grippers for retaining said plates securely fastened thereto.
Claim 9
Dependent Claim
88 words
The combination of claim 1 and wherein said carrier shaft carries a single gripper which is angularly adjustable with respect to said carrier shaft and which engages a stop carried by said stop shaft, and a single torsion spring surrounding said carrier shaft and engaging said stop shaft and said single adjustable gripper for adjusting the force of the latter and also adjusting the angular position of said carrier shaft to adjust the engagement between the remainder of the grippers and the stops carried by said stop shaft.
Claim 10
Dependent Claim
38 words
The combination of claim 8 and wherein said single adjustable gripper and said torsion spring are located at the region of one end of said carrier shaft to one side of all of the rest of the grippers.
References Cited (Backward Citations)
US3184229A
Cited
US3072397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |