US3831733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Destacking apparatus
Assignee: Wyard Ind Inc
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Filing: 1972-10-24
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Granted: 1974-08-27
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Expires: 1992-10-24
Abstract
Abstract An apparatus for the destacking of containers arranged in a plurality of stacked tiers, each tier containing a plurality of said containers. The apparatus lifts the stack to a position where the top tier is held in place while the stack is again lowered. A plate is placed under the separated tier of containers, the tier is then released to the plate and the plate is moved out of the path of the stack. The separated tier is then moved onto a conveyor. The containers as they move onto the conveyor are separated and directed to a transversely moving conveyor in spaced relation where they are oriented with the containers all spaced and all of the containers in the same position.
Inventors
- 👤 R Howard
- 👤 R Weier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:46
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/26; B65G47/30; B65G47/31; B65G59/00; B65G59/02; B65G59/026
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
234 words
In a destacking device, a separator for separating containers arranged in rows and positioned with rows of containers in sideby-side relationship forming a tier of a stack, said separator comprising support means for supporting a tier of containers, pusher means movable across the surface of said support means for continuously pushing said tier of containers to move successive rows of containers off said support means, separating conveyor means comprising a plurality of separating conveyors disposed side-by-side and extending away from said support means in a direction parallel to the direction of movement of said pusher means for receiving row after row of said containers pushed from said support means, said separating conveyors varying progressively in length from one edge of said support means to the opposite edge, drive means for each separating conveyor to drive progressively the longer separating conveyors faster than the shorter of said separating conveyors and the shorter of said separating conveyors just faster than said pusher means, a transfer conveyor extending past the ends of said separating conveyors and transverse to the direction of said separating conveyors for receiving containers carried by said separating conveyors, and drive means for said transfer conveyor to move the conveyor in a direction from the shorter separating conveyors toward the longer separating conceyors, whereby containers in a row are separated on said separating conveyors and are placed in spaced relationship on said transfer conveyor.
Claim 2
Dependent Claim
234 words
In a destacking device, a separator for separating containers arranged in rows and positioned with rows of containers in sideby-side relationship forming a tier of a stack, said separator comprising support means for supporting a tier of containers, pusher means movable across the surface of said support means for continuously pushing said tier of containers to move successive rows of containers off said support means, separating conveyor means comprising a plurality of separating conveyors disposed side-by-side and extending away from said support means in a direction parallel to the direction of movement of said pusher means for receiving row after row of said containers pushed from said support means, said separating conveyors varying progressively in length from one edge of said support means to the opposite edge, drive means for each separating conveyor to drive progressively the longer separating conveyors faster than the shorter of said separating conveyors and the shorter of said separating conveyors just faster than said pusher means, a transfer conveyor extending past the ends of said separating conveyors and transverse to the direction of said separating conveyors for receiving containers carried by said separating conveyors, and drive means for said transfer conveyor to move the conveyor in a direction from the shorter separating conveyors toward the longer separating conceyors, whereby containers in a row are separated on said separating conveyors and are placed in spaced relationship on said transfer conveyor.
Claim 3
Dependent Claim
25 words
In a destacking device according to claim 1 wherein each of said separating conveyors include parallel rollers driven about their axes by a movable belt.
Claim 4
Dependent Claim
93 words
In a destacking device according to claim 2, wherein said transfer conveyor includes rollers each driven at a progressively higher speed along the length thereof to separate containers placed thereon by said separating conveyors, the drive for said rollers on the transfer conveyor comprising a plurality of belts positioned to engage said rollers, a belt to drive each set of five successive rollers, four rollers of each set having sleeves thereon engaged by said belt, said sleeves each having a progressively greater radial thickness, and means driving said belts at varying linear speeds.
Claim 5
Dependent Claim
18 words
In a destacking device according to claim 1 wherein there are four separating conveyors in side-by-side parallel relationship.
Claim 6
Independent Claim
127 words
The method of separating a plurality of containers arranged in rows and positioned with rows of containers in side-by-side relationship forming a tier of a stack, said method comprising the steps of supporting a tier of containers, pushing said tier of containers to push successive rows of containers off the support, separating said containers by conveying each container in a row away from said support in a direction parallel to the direction of said pushing movement to move each container at a different speed toward a conveyor oblique to the direction of conveying and the containers being moved at the highest speed being moved furthermost, receiviNg said containers on said oblique conveyor, conveying said received containers at accelerating speeds, and positioning the containers longitudinally on said conveyor.
Claim 7
Independent Claim
127 words
The method of separating a plurality of containers arranged in rows and positioned with rows of containers in side-by-side relationship forming a tier of a stack, said method comprising the steps of supporting a tier of containers, pushing said tier of containers to push successive rows of containers off the support, separating said containers by conveying each container in a row away from said support in a direction parallel to the direction of said pushing movement to move each container at a different speed toward a conveyor oblique to the direction of conveying and the containers being moved at the highest speed being moved furthermost, receiviNg said containers on said oblique conveyor, conveying said received containers at accelerating speeds, and positioning the containers longitudinally on said conveyor.
References Cited (Backward Citations)
BE540150A
Cited
US2744611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |