US3612299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Palletizer for cans
Assignee: C T SUPPLY CO
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Filing: 1970-02-18
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Granted: 1971-10-12
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Expires: 1990-02-18
Abstract
Abstract A palletizer for organizing a mass of containers in the form of open metal cans continuously delivered thereto by an infeed conveyor into ordered rows, and for stacking the ordered rows of containers layer by layer onto a pallet therefor. The pallet is removably supported upon a vertically reciprocable elevator operative to lower the pallet progressively step by step so that the successive layers of containers can be stacked one upon another. The palletizer is operative to offset or stagger the vertically aligned rows of successive layers; and to effect this result it includes transversely reciprocable stop structure having alternate ridges and grooves which define the outer ends of the container rows in each layer, transversely reciprocable interrupter structure that defines the terminal ends of the rows, and plungers forming a part of the interrupter structure which are selectively movable between extended operative and retracted inoperative positions so as to be engageable with certain of the containers advanced theretoward by the conveyor and constrain such containers to terminate the rows thereof forming any particular layer.
Inventors
- 👤 Stanley B Shaw
- 👤 Ronald H Gehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:02
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/16; B65G57/20; B65G57/22; B65G57/24; B65G57/245; B65G57/03; B65G57/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
315 words
In a palletizer for organizing a mass of containers continuously delivered thereto by an infeed conveyor into ordered rows and for stacking the same layer by layer onto a pallet therefor removable supported upon a vertically reciprocable elevator operative to lower such pallet progressively step by step so that successive layers can be stacked one upon another, transversely disposed stop structure located adjacent the outer end of said elevator and any pallet supported thereon and having a plurality of transversely alternate longitudinally offset ridges and valleys adapted to be engaged by such containers and enforce thereon longitudinal staggering of transversely adjacent rows, said stop structure being transversely reciprocable between first and second positions corresponding to the center to center spacing between transversely adjacent rows of containers to enable the aforesaid staggering of adjacent rows to be alternated layer by layer, means for selectively displacing said stop structure between the first and second positions thereof, transversely disposed interrupter structure located adjacent the inner end of said elevator and any pallet supported thereon in general alignment with the terminal end of said conveyor and having a plurality of plungers spaced apart transversely by the center to center spacing between alternate rows of containers, said interrupter structure being reciprocable between extended and retracted positions and in the extended positions thereof being engageable with certain of the containers advanced theretoward by said conveyor to constrain such certain containers and the entire mass thereof being advanced by said conveyor from movement therepast, said interrupter structure also being transversely reciprocable between first and second positions corresponding to the center to center spacing between transversely adjacent rows of containers to enable the aforesaid staggering of adjacent rows to be alternated layer by layer, means for selectively displacing said interrupter structure between the extended and retracted positions thereof, and means for selectively displacing said interrupter structure between the first and second positions thereof.
Claim 2
Dependent Claim
315 words
In a palletizer for organizing a mass of containers continuously delivered thereto by an infeed conveyor into ordered rows and for stacking the same layer by layer onto a pallet therefor removable supported upon a vertically reciprocable elevator operative to lower such pallet progressively step by step so that successive layers can be stacked one upon another, transversely disposed stop structure located adjacent the outer end of said elevator and any pallet supported thereon and having a plurality of transversely alternate longitudinally offset ridges and valleys adapted to be engaged by such containers and enforce thereon longitudinal staggering of transversely adjacent rows, said stop structure being transversely reciprocable between first and second positions corresponding to the center to center spacing between transversely adjacent rows of containers to enable the aforesaid staggering of adjacent rows to be alternated layer by layer, means for selectively displacing said stop structure between the first and second positions thereof, transversely disposed interrupter structure located adjacent the inner end of said elevator and any pallet supported thereon in general alignment with the terminal end of said conveyor and having a plurality of plungers spaced apart transversely by the center to center spacing between alternate rows of containers, said interrupter structure being reciprocable between extended and retracted positions and in the extended positions thereof being engageable with certain of the containers advanced theretoward by said conveyor to constrain such certain containers and the entire mass thereof being advanced by said conveyor from movement therepast, said interrupter structure also being transversely reciprocable between first and second positions corresponding to the center to center spacing between transversely adjacent rows of containers to enable the aforesaid staggering of adjacent rows to be alternated layer by layer, means for selectively displacing said interrupter structure between the extended and retracted positions thereof, and means for selectively displacing said interrupter structure between the first and second positions thereof.
Claim 3
Dependent Claim
62 words
The palletizer of claim 1 in which said plungers are also movable longitudinally between rearward and forward positions respectively corresponding to the extended and retracted positions thereof so as to displace any such constrained containers and mass thereof being advanced by said conveyor rearwardly and separate the same from any layer of containers then supported by a pallet forwardly of said plungers.
Claim 4
Dependent Claim
58 words
The palletizer of claim 2 in which means are provided that support said interrupter structure for reciprocable displacement between the aforesaid extended and retraced positions such that said plungers transverse generally vertical axes that are longitudinally inclined so that said plungers move downwardly and rearwardly into their extended positions to displace such mass of containers rearwardly as aforesaid.
Claim 5
Dependent Claim
23 words
The palletizer of claim 3 in which each of said plungers has a tapered lower end to facilitate insertion thereof into such container.
Claim 6
Dependent Claim
19 words
The palletizer of claim 2 in which said plungers are respectively aligned longitudinally with valleys of said stop structure.
Claim 7
Dependent Claim
33 words
The palletizer of claim 5 in which said stop structure and interrupter structure are movable transversely in opposite diRections relative to each other in being displaced between the first and second positions thereof.
Claim 8
Dependent Claim
48 words
The palletizer of claim 1 in which said plungers are respectively aligned longitudinally with valleys of said stop structure, and in which said stop structure and interrupter structure are movable transversely in opposite directions relative to each other in being displaced between the first and second positions thereof.
Claim 9
Dependent Claim
23 words
The palletizer of claim 1 in which each of said plungers has a tapered lower end to facilitate insertion thereof into such container.
Claim 10
Dependent Claim
62 words
The palletizer of claim 8 in which said plungers are also movable longitudinally between rearward and forward positions respectively corresponding to the extended and retracted positions thereof so as to displace any such constrained containers and mass thereof being advanced by said conveyor rearwardly and separate the same from any layer of containers then supported by a pallet forwardly of said plungers.
Claim 11
Dependent Claim
26 words
The palletizer of claim 1 in which said stop structure is substantially continuous and is turned in longitudinal directions to define the aforesaid ridges and grooves.
Claim 12
Dependent Claim
19 words
The palletizer of claim 10 in which said plungers are respectively aligned longitudinally with valleys of said stop structure.
Claim 13
Dependent Claim
23 words
The palletizer of claim 11 in which each of said plungers has a tapered lower end to facilitate insertion thereof into such container.
Claim 14
Dependent Claim
62 words
The palletizer of claim 12 in which said plungers are also movable longitudinally between rearward and forward positions respectively corresponding to the extended and retracted positions thereof so as to displace any such constrained containers and mass thereof being advanced by said conveyor rearwardly and separate the same from any layer of containers then supported by a pallet forwardly of said plungers.
Claim 15
Dependent Claim
58 words
The palletizer of claim 13 in which means are provided that support said interrupter structure for reciprocable displacement between the aforesaid extended and retracted positions such that said plungers traverse generally vertical axes that are longitudinally inclined so that said plungers move downwardly and rearwardly into their extended positions to displace such mass of containers rearwardly as aforesaid.
Claim 16
Dependent Claim
20 words
The palletizer of claim 14 in which the angular inclination of said axes is of the order of 30* .
Claim 17
Dependent Claim
48 words
The palletizer of claim 13 in which said plungers are respectively aligned longitudinally with valleys of said stop structure, and in which said stop structure and interrupter structure are movable transversely in opposite directions relative to each other in being displaced between the first and second positions thereof.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |