Patent US3756436A successfully refreshed from Google Patents.
US3756436A
Expired / Lapsed
US
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Conveyor track for pallets
Assignee: Vodafone GmbH
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Filing: 1972-07-17
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Granted: 1973-09-04
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Expires: 1992-07-17
Abstract
Abstract A track system for air freight is disclosed, having a short track of narrowly-spaced rollers and a long, principal track of widely-spaced rollers at a lower level. A transition station has rollers of both types of roller spacings, the rollers being organized in two sets, and respectively alignable with the two tracks. Auxiliary carriers of perforated construction are used in the wide-spaced track, and the narrow-spaced rollers in the station can reach through the perforations for lowering the load onto an auxiliary carrier which is supported by widely-spaced rollers; the load-bearing carrier is then rolled onto that track.
Inventors
- 👤 G Lingg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:22
CPC Classifications
B; B65; B65G; B65G13/00; B65G1/00; B65G13/11; B65G13/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
Conveyor system for pallets, containers, or the like, in aircraft terminals, comprising: a first track with relatively closely spaced rolls or rollers; a plurality of similar auxiliary carriers of perforated construction; a second track with relatively widely spaced rolls or rollers for moving the auxiliary carriers, the second track being provided with lateral guide means for the auxiliary carriers; and a transition station having two sets of rolls or rollers, a first set having said close spacing, the second set having said wide spacing, at least one of the first set and second set mounted for independent lifting and lowering, the sets being respectively positionable to serve as extensions for the first and second tracks into the transition station; the carriers having perforations so that the rolls or rollers of the first set can reach through the perforations for lowering a pallet, container, or the like onto the carrier.
Claim 2
Dependent Claim
149 words
Conveyor system for pallets, containers, or the like, in aircraft terminals, comprising: a first track with relatively closely spaced rolls or rollers; a plurality of similar auxiliary carriers of perforated construction; a second track with relatively widely spaced rolls or rollers for moving the auxiliary carriers, the second track being provided with lateral guide means for the auxiliary carriers; and a transition station having two sets of rolls or rollers, a first set having said close spacing, the second set having said wide spacing, at least one of the first set and second set mounted for independent lifting and lowering, the sets being respectively positionable to serve as extensions for the first and second tracks into the transition station; the carriers having perforations so that the rolls or rollers of the first set can reach through the perforations for lowering a pallet, container, or the like onto the carrier.
Claim 3
Dependent Claim
35 words
System as in claim 1, wherein the first track is disposed at a higher level than the second track, the level differenc being not smaller than the vertical dimension of a carrier of the plurality.
Claim 4
Dependent Claim
75 words
System as in claim 2, the first level being slightly higher than said vertical dimension, there being first and second lifting devices respectively for the first and second sets of rolls or rollers, the first lifting device for lowering a container or pallet onto a carrier when seated on the second set of rolls or rollers, the second lifting device for lifting the second set of rolls or rollers into alignment with the second track.
Claim 5
Dependent Claim
52 words
System as in claim 3, wherein a stack of carriers is provided with the uppermost one in a different level, the second lifting device placing the second set of rolls or rollers into alignment with the uppermost carrier, for receiving the carrier and to be placed into alignment with the second track.
Claim 6
Dependent Claim
49 words
System as in claim 1, wherein the carriers of the plurality include a support grid and carrier frame, the carrier frame constructed from bars at a spacing to be seated on the second track, the grid constructed to permit traversing in the rolls or rollers of the first set.
Claim 7
Dependent Claim
18 words
System as in claim 5, wherein the grid is mounted on the frame, the frame having square-shaped configuration.
References Cited (Backward Citations)
US3578184A
Cited
US3690485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |