US3841460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Palletized cargo discharge apparatus for conveyors
Assignee: Oehler Wyhlen Lagertechnik AG
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Filing: 1972-08-02
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Granted: 1974-10-15
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Expires: 1992-08-02
Abstract
Abstract For discharging palletized cargo from roller conveyors, there is provided apparatus including lifting rails, a first, rigid frame and a second frame displaceable horizontally, a driving motor and a transmission for displacing the second frame. Both frames are connected to the lifting rails by a pivotal linkage so that rotation of the motor results in vertical reciprocation of the lifting rails which can pass between the rollers of the roller conveyor.
Inventors
- 👤 W Suter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:31
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/53; B65G47/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A lifting rail mechanism for cargo discharge comprising: a rigid support frame having parallel longitudinal beams and vertical members at the ends thereof for lifting supporting vertically displaceable rail means; a rectangular second frame formed of spaced apart beams and cross beams overlying said rigid frame; toggle levers pivotally mounted on said vertical member of said rigid frame, said toggle levers each having a short arm adapted to lift the lifting rail means of the mechanism and a long arm secured to the corner at each of the four corners of said second frame; lifting rail means having rails spaced apart which are pivotally connected in their corners to the short arm of each of said toggle means; driving means reciprocating said second frame member which includes a rotary motor and eccentric disc mounted thereon for converting the rotary output of said motor into linear reciprocating motion of said second frame members; and, chain conveying means associated with said lifting member having a driven chain running along said rail means.
Claim 2
Dependent Claim
170 words
A lifting rail mechanism for cargo discharge comprising: a rigid support frame having parallel longitudinal beams and vertical members at the ends thereof for lifting supporting vertically displaceable rail means; a rectangular second frame formed of spaced apart beams and cross beams overlying said rigid frame; toggle levers pivotally mounted on said vertical member of said rigid frame, said toggle levers each having a short arm adapted to lift the lifting rail means of the mechanism and a long arm secured to the corner at each of the four corners of said second frame; lifting rail means having rails spaced apart which are pivotally connected in their corners to the short arm of each of said toggle means; driving means reciprocating said second frame member which includes a rotary motor and eccentric disc mounted thereon for converting the rotary output of said motor into linear reciprocating motion of said second frame members; and, chain conveying means associated with said lifting member having a driven chain running along said rail means.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |