US4118024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling facing sheets for the production of pressed board and other laminates
Assignee: G Siempelkamp GmbH and Co KG
•
Filing: 1977-06-20
•
Granted: 1978-10-03
•
Expires: 1997-06-20
Abstract
Abstract An apparatus for handling facing sheets for application to pressed board and other laminate stacks adapted to be bonded together comprises a feed device for causing engagement of the uppermost sheet of a pile of facing sheets with a pick-up device of a drum which destacks the sheets individually and advances them to an assembling table at which the laminate stack is formed. The drum is associated with a reversible drive for enabling the trailing end of the sheet to pass a discharge point, whereupon reversal of the direction of rotation of the drum feeds the sheet with its trailing end foremost to the laminate stack thereby enabling the facing sheets to be applied alternately with their top faces turned upwardly or downwardly.
Inventors
- 👤 Klaus Gerhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:19
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/58; B65H15/00; B65H15/004; B65H5/00; B65H5/08; B65H5/12; B65H2404/00; B65H2404/60; B65H2404/63; B65H2404/632; Y; Y10; Y10S; Y10S271/00; Y10S271/90; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1751; Y10T156/1761; Y10T156/1776; Y10T156/1778; Y10T156/1783
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
172 words
A sheet-handling apparatus which comprises: means for receiving a pile of sheets having a leading edge and a trailing edge; a drum disposed adjacent said pile and reversibly rotatable about an axis, said drum being formed with a pickup engageable with a portion of a sheet adjacent the leading edge thereof; a deflector disposed adjacent said drum for guiding a leading edge of a sheet entrained by said drum in one sense of rotation and a trailing edge of a sheet entrained by said drum in an opposite rotational sense away from the periphery of said drum; an assemby table receiving said sheets from said deflector; forward pressing means for urging a sheet against the periphery of said drum during displacement of said drum in said one sense; and reverse pressing means for retaining a sheet against the periphery of said drum upon rotation of said drum in said opposite sense, whereby said drum is adapted to dispose said sheets selectively in the same orientation and in reverse orientation upon said table.
Claim 2
Dependent Claim
172 words
A sheet-handling apparatus which comprises: means for receiving a pile of sheets having a leading edge and a trailing edge; a drum disposed adjacent said pile and reversibly rotatable about an axis, said drum being formed with a pickup engageable with a portion of a sheet adjacent the leading edge thereof; a deflector disposed adjacent said drum for guiding a leading edge of a sheet entrained by said drum in one sense of rotation and a trailing edge of a sheet entrained by said drum in an opposite rotational sense away from the periphery of said drum; an assemby table receiving said sheets from said deflector; forward pressing means for urging a sheet against the periphery of said drum during displacement of said drum in said one sense; and reverse pressing means for retaining a sheet against the periphery of said drum upon rotation of said drum in said opposite sense, whereby said drum is adapted to dispose said sheets selectively in the same orientation and in reverse orientation upon said table.
Claim 3
Dependent Claim
31 words
The apparatus defined in claim 1 wherein at least one of said pressing means comprises a plurailty of rollers spaced about the periphery of said drum for urging said sheet thereagainst.
Claim 4
Dependent Claim
29 words
The apparatus defined in claim 1 wherein at least one of said pressing means comprises a pressing belt adapted to urge a sheet against said periphery of said drum.
Claim 5
Dependent Claim
41 words
The apparatus defined in claim 1 wherein said deflector comprises a bar having vertices adapted to guide sheets away from said periphery of said drum, and respective nozzles in said vertices trained in opposite directions against the periphery of said drum.
Claim 6
Dependent Claim
21 words
The apparatus defined in claim 4 wherein said deflector is formed with guide surfaces for guiding said sheets onto a plane.
Claim 7
Dependent Claim
25 words
The apparatus defined in claim 1 wherein said periphery of said drum is adapted to accommodate sheets of different thicknesses or different numbers of layers.
Claim 8
Dependent Claim
57 words
The apparatus defined in claim 1 wherein said drum is rotatable about a horizontal axis and said table is horizontal and vertically shiftable to form a sheet-receiving plane extending through the axis of said drum, said deflector being symmetrically shaped about said plane and said forward and reverse pressingmeans being disposed on opposite sides of said plane.
Claim 9
Dependent Claim
30 words
The apparatus defined in claim 7 wherein each of said pressing means comprises a plurality of rollers spaced apart peripherally of said drum and said pickup is a suction head.
Claim 10
Dependent Claim
25 words
The apparatus defined in claim 8, further comprising feed means adjacent said drum for advancing uppermost sheets of said pile into engagement by said pickup.
Claim 11
Dependent Claim
27 words
The apparatus defined in claim 9 wherein said feed means includes an arm engaging an uppermost sheet and swinging the leading edge of same toward said drum.
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) | 1981-10-02 | 1982-04-03 | 1982-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-02 | 1986-04-03 | 1986-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-02 | 1990-04-03 | 1990-10-03 | $7700.00 | Window Closed / Lapsed |