Patent US3837504A successfully refreshed from Google Patents.
US3837504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for lifting containers in connection with a packing machine
Assignee: Focke and Pfuhl
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Filing: 1973-03-26
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Granted: 1974-09-24
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Expires: 1993-03-26
Abstract
Abstract Apparatus is described for stacking a plurality of containers upon removal from a conveyor. The stacking apparatus comprises a wheel located at each side adjacent one end of the conveyor, each wheel having a plurality of rods slidingly affixed thereto adjacent the periphery of the wheel. As the wheels are rotated, a rod engages each side of a container or plurality of containers to lift them from the container. Further rotation causes the rods to eventually become disengaged from the containers. The thus raised containers are then supported by those containers raised by subsequent rods.
Inventors
- 👤 H Focke
- 👤 H Mutschall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:54
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/30; B65G57/305; B65G57/306
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
144 words
Apparatus for lifting and stacking containers comprising: a. a horizontal conveyor which transports a single layer of containers toward a lifting device, b. a lifting device located at each side of one end of said conveyor, each of the lifting devices having a wheel rotatable about an axis parallel to the longitudinal axis of the conveyor, a plurality of rods slidably affixed to and extending from said wheel adjacent its periphery toward the opposite end of said conveyor such that each of said rods may move along its longitudinal axis with respect to said wheel wherein as the wheels are rotated, one rod from each wheel contacts the underside of the containers and lifts said containers from said conveyor before said containers reach the end of said conveyor, and c. means to move said rods along their longitudinal axis with respect to said wheels.
Claim 2
Dependent Claim
144 words
Apparatus for lifting and stacking containers comprising: a. a horizontal conveyor which transports a single layer of containers toward a lifting device, b. a lifting device located at each side of one end of said conveyor, each of the lifting devices having a wheel rotatable about an axis parallel to the longitudinal axis of the conveyor, a plurality of rods slidably affixed to and extending from said wheel adjacent its periphery toward the opposite end of said conveyor such that each of said rods may move along its longitudinal axis with respect to said wheel wherein as the wheels are rotated, one rod from each wheel contacts the underside of the containers and lifts said containers from said conveyor before said containers reach the end of said conveyor, and c. means to move said rods along their longitudinal axis with respect to said wheels.
Claim 3
Dependent Claim
48 words
The apparatus of claim 1, wherein the means to move said rods comprises a reciprocating slide which engages the distal end of said rods as they lift the containers from said conveyor to move the container and rod toward the wheels to the end position of the conveyor.
Claim 4
Dependent Claim
39 words
The apparatus of claim 2 wherein said means to move said rods also comprises means to move the rods toward the opposite end of the conveyor after they have been displaced toward the wheels prior to engaging said containers.
Claim 5
Dependent Claim
53 words
The apparatus of claim 3 wherein said means to move said rods toward the opposite end of the conveyor comprises a stationary cam member which engages the end of the rods protruding from the side of the wheels opposite the end of the conveyor during a portion of the rotation of the wheels.
Claim 6
Dependent Claim
24 words
The apparatus of claim 1 wherein the rods support the weight of the stacked containers during a portion of the rotation of the wheels.
Claim 7
Dependent Claim
24 words
The apparatus of claim 1 wherein each of said rods has a detent plate affixed thereto to limit the travel thereon of the containers.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |