Patent US5481546A successfully refreshed from Google Patents.
Patent US3860280A successfully refreshed from Google Patents.
US3860280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grab means for a number of load units
Assignee: ABB Norden Holding AB
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Filing: 1973-01-12
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Granted: 1975-01-14
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Expires: 1993-01-12
Abstract
Abstract A grab means for handling a number of load units arranged on longitudinally extending beams, and cross beams on which the longitudinally extending beams are mounted for movement towards and from each other. A pantograph-like device is connected between the longitudinally extending beams so that if they move towards and from each other this device expands or contracts. Carried by the longitudinally extending beams are extensible structures, which may be likewise pantograph-like, which are mounted on the beams by carriages so that they can expand or contract. These are connected with the first pantograph-like arrangement so that they also expand or contract as the longitudinal beams are moved towards and from each other.
Inventors
- 👤 Signar Karlsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:24
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/02; B66C1/0237; B66C1/0243; B66C1/0212; B66C1/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
Grab means having a plurality of horizontally adjustable grasping members (7) for handling a corresponding number of load units comprising two parallel longitudinal supporting elements extending in the longitudinal direction of the grab means, a pair of parallel cross beams fixed with respect to each other, means supporting the supporting elements on the cross beams for movement towards and from each other, extensible means, means connecting each of the extensible means to one of the supporting elements at at least three spaced points, said extensible means carrying said grasping members, and means operatively connected to said extensible means to expand and contract said extensible means, said extensible means comprising a set of first pantograph-like links, and the connecting means comprising at least two members slidable on each of the supporting elements and a third member fixed on each supporting element.
Claim 2
Dependent Claim
140 words
Grab means having a plurality of horizontally adjustable grasping members (7) for handling a corresponding number of load units comprising two parallel longitudinal supporting elements extending in the longitudinal direction of the grab means, a pair of parallel cross beams fixed with respect to each other, means supporting the supporting elements on the cross beams for movement towards and from each other, extensible means, means connecting each of the extensible means to one of the supporting elements at at least three spaced points, said extensible means carrying said grasping members, and means operatively connected to said extensible means to expand and contract said extensible means, said extensible means comprising a set of first pantograph-like links, and the connecting means comprising at least two members slidable on each of the supporting elements and a third member fixed on each supporting element.
Claim 3
Dependent Claim
29 words
Grab means as claimed in claim 1, in which means are provided mounting the cross beams for angular adjustment with respect to the longitudinal direction of the supporting elements.
Claim 4
Dependent Claim
28 words
Grab means as claimed in claim 1, in which the supporting elements comprise rails and carriages are provided running along the rails for supporting the extensible means thereon.
Claim 5
Dependent Claim
31 words
Grab means as claimed in claim 1 in which further extensible means are provided for connecting said longitudinal supporting elements in a transverse direction, said further extensible means comprising pantograph-like links.
Claim 6
Dependent Claim
54 words
Grab means as claimed in claim 4, in which said pantographlike links comprise a plurality of crossing pairs of bars pivotally connected at at least two points, and in which the crossing bars of the ends of the second pantograph-like links are connected at two points to different bars of the first pantoGraph-like links.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |