Patent US3767064A successfully refreshed from Google Patents.
US3767064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling walking beam conveyor
Assignee: Individual
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Filing: 1972-06-20
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Granted: 1973-10-23
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Expires: 1992-06-20
Abstract
Abstract A load transfer device for intermittently advancing a load in a straight path automatically. Means are provided for moving a load relative to the load transfer device and then for moving the entire load transfer device such that the distance the load is advanced is not limited by the length of the load transfer device.
Inventors
- 👤 D Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:36
CPC Classifications
B; B65; B65G; B65G25/00; B65G25/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
79 words
A load transfer device for moving loads supported on pallet feet across a planar surface comprising an elongated base member, an elongated load-bearing member parallel to and mounted for vertical and reciprocatory movement relative to said base member, drive means for moving said load bearing member in vertical and reciprocatory paths, and means for restraining movement of said load-bearing member for one direction of said reciprocatory movement to permit said base member to move relative to said load-bearing member.
Claim 2
Dependent Claim
79 words
A load transfer device for moving loads supported on pallet feet across a planar surface comprising an elongated base member, an elongated load-bearing member parallel to and mounted for vertical and reciprocatory movement relative to said base member, drive means for moving said load bearing member in vertical and reciprocatory paths, and means for restraining movement of said load-bearing member for one direction of said reciprocatory movement to permit said base member to move relative to said load-bearing member.
Claim 3
Dependent Claim
75 words
A load transfer device as defined in claim 1 and including an iNtermediate member between said load-bearing member and said base member, first roller means on said intermediate member, ramp means on said base member and underlying said first roller means whereby said intermediate member is movable relative to said base member up and down said ramp means to raise said intermediate member and the load bearing member supported thereon relative to said base member.
Claim 4
Dependent Claim
81 words
A load transfer device as defined in claim 2 and including a second roller means on said intermediate member for supporting said load bearing member, and said drive means being operably connected to said intermediate member to move it up said ramp means to raise said load bearing member, and being operably connected to said load bearing member to move said load bearing member in a reciprocatory path on said second roller means and relative to said intermediate and base members.
Claim 5
Dependent Claim
62 words
A load transfer device as defined in claim 3 wherein said drive means comprises first and second fluid-actuated piston-cylinder assemblies, said first assembly being attached at one end to said base member and at the other to said intermediate member, and said second assembly being attached at one end to said base member and at the other end to said load-bearing member.
Claim 6
Dependent Claim
39 words
A load transfer device as defined in claim 4 wherein said means for restraining movement of said load bearing member comprises stop means at one end of said load bearing member for engaging a load supported on said surface.
Claim 7
Dependent Claim
23 words
A load transfer device as defined in claim 5 and including second stop means on the opposite end of said load bearing member.
References Cited (Backward Citations)
US3537540A
Cited
US3658171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |