US Patent No: 6,846,153
Number of patents in Portfolio can not be more than 2000
Tray destacker
Stats
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Jan 25, 2005
Issued date -
Mar 12, 2002
filing date -
10/095,829
serial no -
Expired
status
Importance
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Abstract
A tray destacker is operable to separate individual trays from a stack of trays and to discharge the individual trays. The tray destacker includes a tray separating device which engages an edge or handle of the individual tray and moves the tray away from the stack of trays, while a tray retaining device engages a next tray adjacent to the individual tray and retains the remaining trays of the stack. The tray separating device may be biased toward an engaging position so as to engage the individual tray when the trays and the tray separating device are in an appropriate position relative to one another. The tray retaining device may also be biased to engage the next tray and may release the next tray in response to the tray separating device returning to the stack of trays to remove the next tray from the stack.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,809,881 Bin dispensing machine | 56 | 1987 | |
| 4,915,578 Bin unstacking machine | 8 | 1988 | |
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| 5,013,213 Automatic denesting machine | 8 | 1990 | |
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| 4,909,412 Machines and methods for separating nested trays | 16 | 1988 | |
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| 5,959,868 Arrangement for distributing articles for dispatch | 17 | 1997 | |
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| 4,242,029 Poultry coop handling system | 12 | 1977 | |
| 5,791,867 Apparatus for automatically unstacking of trays from a vertically extending interlocking stack thereof | 5 | 1997 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 25, 2016 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |