Patent US3598252A successfully refreshed from Google Patents.
US3598252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for assembling veneer into plywood sheets
Assignee: FMC Corp
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Filing: 1969-04-01
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Granted: 1971-08-10
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Expires: 1989-04-01
Abstract
Abstract Apparatus for assembling veneer into plywood sheets is disclosed. Two sources of veneer, one above the other, are adjacent an assembly station. The assembly station has a lift table to receive the veneer for assembly. An interrupted slat conveyor takes, alternately, two sheets of veneer from the top source of veneer, and one sheet from the bottom source of veneer. The veneer on the conveyor engages a stop above the lift table to drop between the slats of the conveyor onto the lift table as the slats of the conveyor move out from under the veneer. After each deposit of veneer on the lift table, core pieces are taken from gluing rolls and laid on the deposited veneer, the end core sheet being supported by a retractable support member.
Inventors
- 👤 Ronald J Billett
- 👤 Veikko K Viitanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:22
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/102; Y10S414/103; Y10S414/105
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
236 words
Plywood-assembling apparatus at an assembly station comprising in combination a lift table having a vertically movable surface to receive veneer and support the veneer for assembly into plywood sheets, means to sense the vertical position of the top sheet of veneer on said surface, means to adjust the vertical position of said table in response to said sensing means to maintain the top sheet of veneer at substantially a constant height, a stop mounted in the station, an interrupted conveyor movable along a path over said lift table surface to bring veneer against said stop, said conveyor having endless flexible side members below the top sheet of veneer on the lift table and having slats connected between said side members to extend across the conveyor, said slats having portions elevated above said side members to clear the veneer on the table and positioned along said side members in groups to define gaps between the groups at least as long as the veneer, the veneer on said elevated slats dropping through said gaps on engagement with said stop, two stacked conveyors to feed veneer to said interrupted conveyor, and a discharge conveyor extending between said flexible side members to receive plywood sheets from the vertically movable surface of the lift table when said surface is in a lowered position, said discharge conveyor having a gap to permit passage of the group of slats on the interrupted conveyor.
Claim 2
Dependent Claim
236 words
Plywood-assembling apparatus at an assembly station comprising in combination a lift table having a vertically movable surface to receive veneer and support the veneer for assembly into plywood sheets, means to sense the vertical position of the top sheet of veneer on said surface, means to adjust the vertical position of said table in response to said sensing means to maintain the top sheet of veneer at substantially a constant height, a stop mounted in the station, an interrupted conveyor movable along a path over said lift table surface to bring veneer against said stop, said conveyor having endless flexible side members below the top sheet of veneer on the lift table and having slats connected between said side members to extend across the conveyor, said slats having portions elevated above said side members to clear the veneer on the table and positioned along said side members in groups to define gaps between the groups at least as long as the veneer, the veneer on said elevated slats dropping through said gaps on engagement with said stop, two stacked conveyors to feed veneer to said interrupted conveyor, and a discharge conveyor extending between said flexible side members to receive plywood sheets from the vertically movable surface of the lift table when said surface is in a lowered position, said discharge conveyor having a gap to permit passage of the group of slats on the interrupted conveyor.
Claim 3
Dependent Claim
120 words
An interrupted conveyor for transporting veneer to aNd depositing veneer on a table in a plywood sheet assembly station comprising a pair of flexible side members having a run group the surface of the top sheet of veneer on said table, a plurality of crossmembers connected between said side members in groups to define gaps between said groups, said crossmembers having center portions elevated above the top veneer on said table for clearance whereby a sheet of veneer can be deposited from said crossmembers onto the veneer on said table and the top sheet of veneer will be accessible to an operator without interference from a side member when said gap is in registration with the veneer on the table.
Claim 4
Dependent Claim
120 words
An interrupted conveyor for transporting veneer to aNd depositing veneer on a table in a plywood sheet assembly station comprising a pair of flexible side members having a run group the surface of the top sheet of veneer on said table, a plurality of crossmembers connected between said side members in groups to define gaps between said groups, said crossmembers having center portions elevated above the top veneer on said table for clearance whereby a sheet of veneer can be deposited from said crossmembers onto the veneer on said table and the top sheet of veneer will be accessible to an operator without interference from a side member when said gap is in registration with the veneer on the table.
Claim 5
Dependent Claim
152 words
An interrupted conveyor for transporting veneer to and depositing veneer on a table having a vertically adjustable upper surface and having means to maintain the height of veneer on said surface substantially constant, said conveyor comprising a spaced pair of endless side chains, means to mount said endless chains to position the upper run thereof below the top of the veneer on the table, a plurality of crossbars connected between said side chains in groups to define gaps between said groups, said crossbars having portions elevated with respect to the chains for clearance with the veneer on the table whereby a sheet of veneer can be deposited from said crossbars through said gaps onto the veneer on said table and the top sheet of veneer will be accessible to an operator without interference from the side chains when a gap in the groups of crossbars is over the veneer on the table.
Claim 6
Dependent Claim
152 words
An interrupted conveyor for transporting veneer to and depositing veneer on a table having a vertically adjustable upper surface and having means to maintain the height of veneer on said surface substantially constant, said conveyor comprising a spaced pair of endless side chains, means to mount said endless chains to position the upper run thereof below the top of the veneer on the table, a plurality of crossbars connected between said side chains in groups to define gaps between said groups, said crossbars having portions elevated with respect to the chains for clearance with the veneer on the table whereby a sheet of veneer can be deposited from said crossbars through said gaps onto the veneer on said table and the top sheet of veneer will be accessible to an operator without interference from the side chains when a gap in the groups of crossbars is over the veneer on the table.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |