US3905489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacking of bricks
Assignee: C Keller GmbH and Co KG
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Filing: 1974-04-19
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Granted: 1975-09-16
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Expires: 1994-04-19
Abstract
Abstract Bricks are removed in layers from a kiln trolley and are formed in re-arranged layers on collecting tables. The layers are then transferred to a stacking table on which a stack of bricks is formed. If the bricks on the collecting tables are of a different shade to those on the stacking table, they are transferred to storage tables until such time as the bricks on the stacking table are of the same shade, the bricks then being transferred from the storage tables to the stacking table. Transfer of bricks to and from the storage tables is effected by pivotal gripper means.
Inventors
- 👤 Walter Berndt
- 👤 Helmut F Lauff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:14
CPC Classifications
B; B65; B65G; B65G59/00; B65G59/02; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/11
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
290 words
A device for forming stacks of bricks of uniform shade, said device comprising first transport means, second transport means parallel to the first transport means, means operative to transfer layers of bricks from a kiln trolley onto the first transport means and to transfer some of said bricks on said first transport means onto said second transport means, a first pair of conveyors arranged at the downstream end portion of the first transport means and extending transversely thereto whereby each of said conveyors receives a row of bricks from the first transport means, a second pair of conveyors arranged at the downstream end portion of the second transport means and extending transversely thereto whereby each of said conveyors receives a row of bricks from the second transport means, a plurality of second transfer means each associated with a respective one of the conveyors, a plurality of collecting tables associated with the second transfer means, the second transfer means being operative to transfer rows of bricks from the associated conveyor onto a said collecting table whereby a re-arranged layer is formed on the collecting table, a lowerable stacking table positioned to receive layers of bricks from the collecting tables whereby a stack is formed on the stacking table, storage tables associated with the collecting tables, and pivotal gripper means operative to transfer layers of bricks from the collecting tables to the storage tables when the bricks on the collecting tables are of a different shade to those on the stacking table, and to transfer layers of bricks from the storage tables to the stacking table to be intermixed with the bricks thereon when the shade of the bricks on the storage tables is the same as that on the stacking table.
Claim 2
Independent Claim
290 words
A device for forming stacks of bricks of uniform shade, said device comprising first transport means, second transport means parallel to the first transport means, means operative to transfer layers of bricks from a kiln trolley onto the first transport means and to transfer some of said bricks on said first transport means onto said second transport means, a first pair of conveyors arranged at the downstream end portion of the first transport means and extending transversely thereto whereby each of said conveyors receives a row of bricks from the first transport means, a second pair of conveyors arranged at the downstream end portion of the second transport means and extending transversely thereto whereby each of said conveyors receives a row of bricks from the second transport means, a plurality of second transfer means each associated with a respective one of the conveyors, a plurality of collecting tables associated with the second transfer means, the second transfer means being operative to transfer rows of bricks from the associated conveyor onto a said collecting table whereby a re-arranged layer is formed on the collecting table, a lowerable stacking table positioned to receive layers of bricks from the collecting tables whereby a stack is formed on the stacking table, storage tables associated with the collecting tables, and pivotal gripper means operative to transfer layers of bricks from the collecting tables to the storage tables when the bricks on the collecting tables are of a different shade to those on the stacking table, and to transfer layers of bricks from the storage tables to the stacking table to be intermixed with the bricks thereon when the shade of the bricks on the storage tables is the same as that on the stacking table.
Claim 3
Dependent Claim
26 words
A device according to claim 1, further comprising means associated with each collecting table for separating each layer of bricks into three spaced groups of bricks.
Claim 4
Dependent Claim
36 words
A device according to claim 2, wherein said separating means comprises two tongs movable in a horizontal direction, each of said tongs being arranged to grip a respective group of bricks and to displace same outwardly.
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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |