Patent US3656743A successfully refreshed from Google Patents.
US3656743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for restacking stacks of paper, cardboard and the like sheets
Assignee: Individual
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Filing: 1970-10-16
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Granted: 1972-04-18
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Expires: 1990-10-16
Abstract
Abstract A machine for processing and restacking stacks of sheets of printed or unprinted paper, cardboard and the like, including a support, means for holding the sheets of a stack on edge, in a substantially vertical position on the support, sheet lifting means movable along the support successively under the sheets of the stack, side sheet guide means having a face located adjacent the position of the side edges of the sheets of the stack above the support with its face in a position to be engaged by the adjacent side edges of the sheets, means for vibrating the sheet lifting means for in turn vibrating, loosening and separating the sheets of the stack at the position of the sheet lifting means, means for positioning the vibrating means and controlling its effect on the lifted sheets for moving them in a direction to cause their said side edges to contact the face of the side guide means, thereby stacking the sheets of the stack with the side edges in alignment. The support of this unit comprises a plurality of spaced parallel beams, the sheet lifting means and the vibrating means comprises a plurality of lifting shoes located between beams and projecting above their upper surfaces, and the vibrating means is an electromagnetic vibrator for controlling the stacking of the sheets.
Inventors
- 👤 Gunnar Ruud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:49
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/34; B65H2406/00; B65H2406/10; B65H2406/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
173 words
In an apparatus for re-stacking a stack of sheets of printed or unprinted paper, cardboard sheets and the like including a support, means for holding the sheets of the stack on edge in a substantially vertical position on the support, and sheet-lifting means movable along the support and successively under the sheets of the stack, wherein the improvement comprises a side sheet guide means having a face located adjacent the position of the side edges of the sheets of the stack above the sheet-lifting means with its face in a position to be engaged by the adjacent side edges of the sheets, means for vibrating the sheet-lifting means for in turn vibrating, loosening and separating the sheets at the positiOn of the sheet-lifting means, and means for positioning the vibrating means and controlling its effect on the lifted sheets for moving them in a direction to cause their said side edges to contact the face of the side guide means thereby restacking the sheets of the stack with their side edges in alignment.
Claim 2
Dependent Claim
173 words
In an apparatus for re-stacking a stack of sheets of printed or unprinted paper, cardboard sheets and the like including a support, means for holding the sheets of the stack on edge in a substantially vertical position on the support, and sheet-lifting means movable along the support and successively under the sheets of the stack, wherein the improvement comprises a side sheet guide means having a face located adjacent the position of the side edges of the sheets of the stack above the sheet-lifting means with its face in a position to be engaged by the adjacent side edges of the sheets, means for vibrating the sheet-lifting means for in turn vibrating, loosening and separating the sheets at the positiOn of the sheet-lifting means, and means for positioning the vibrating means and controlling its effect on the lifted sheets for moving them in a direction to cause their said side edges to contact the face of the side guide means thereby restacking the sheets of the stack with their side edges in alignment.
Claim 3
Dependent Claim
16 words
An apparatus as claimed in claim 1, wherein the vibrating means comprises a high frequency vibrator.
Claim 4
Dependent Claim
22 words
An apparatus as claimed in claim 1, wherein the vibrating means is a high frequency electromagnetic vibrator carried by the sheet-lifting means.
Claim 5
Dependent Claim
51 words
An apparatus as claimed in claim 1, wherein the sheet-lifting means comprises a transverse beam structure extending under the surface portion of the support, and means connected to at least on one end of said transverse beam structure for supporting the side sheet guide means in a position above the support.
Claim 6
Dependent Claim
52 words
An apparatus as claimed in claim 2, wherein the means for supporting the side sheet guide means comprises a post member extending vertically when the support is in horizontal position, and vertically elongated air nozzle means supported on said post member and directed inwardly therefrom toward the side edges of the sheets.
Claim 7
Dependent Claim
63 words
An apparatus as claimed in claim 1, wherein the support comprises a plurality of laterally spaced support beams, the sheet-lifting means including a transverse beam structure extending under the support beams, and crown blocks attached to the upper portion of the transverse beam structure alternating with the support beams and having their crown portions located slightly above the surface of the support beams.
Claim 8
Dependent Claim
44 words
An apparatus as claimed in claim 6, wherein the vibrating means comprises an electromagnetic vibrator securely mounted on the under side of the transverse beam structure and set at an angle for directing its vibrating force toward the side of the sheet guide means.
Claim 9
Dependent Claim
46 words
An apparatus as claimed in claim 6, wherein the support includes a slide bar extending lengthwise of each side parallel to the support beams, and means connected to the ends of the transverse beam structure resting on the slide bar at each side of the support.
Claim 10
Dependent Claim
33 words
An apparatus as claimed in claim 8, wherein the means for supporting the side sheet guide means includes a post member attached to and supported by the means resting on the slide bar.
Claim 11
Dependent Claim
45 words
An apparatus as claimed in claim 9, including a sheet stacking bar supported by the post member and a series of blowers mounted in vertical arrangement on the post having nozzles directed toward the edges of the sheets of the stack above the sheet-lifting means.
Claim 12
Dependent Claim
40 words
An apparatus as claimed in claim 10, wherein the stacking bar and blowers are mounted on a first plate carried by the post member, said plate being movable toward and away from the edges of the sheets of the stack.
Claim 13
Dependent Claim
50 words
An apparatus as claimed in claim 11, including a second plate mounted on the side of the post parallel to the first plate, means for mounting the first plate on the second plate for straight line movement, and means for locking the first plate against movement from a set position.
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |