Patent US5335710A successfully refreshed from Google Patents.
Patent US3827743A successfully refreshed from Google Patents.
US3827743A
Expired / Lapsed
US
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Load handling apparatus
Assignee: Doosan Bobcat North America Inc
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Filing: 1972-06-30
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Granted: 1974-08-06
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Expires: 1992-06-30
Abstract
Abstract A load handling apparatus, which may form a part of a load transfer machine for handling semi-trailers, cargo containers and other large loads. The load handling apparatus includes a load handling device and an associated mechanism which are readily collapsible by remote control to dimensions sufficiently small that the load transfer machine may be mounted on a semitrailer or other vehicle for movement over public highways. At the same time, the load handling apparatus is readily erectable, also by remote control, so that it may be quickly prepared for the handling of large loads.
Inventors
- 👤 P Visser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:42
CPC Classifications
B; B66; B66F; B66F9/00; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6472
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
130 words
A load handling apparatus comprising an elongated beam member, a pair of carriages carried by the said beam member, each carriage including a transverse tube defining a transverse axis, two pairs of coaxial telescopic tubular members located one pair in each said transverse tube and projecting from the respective ends thereof, means connected respectively between each said carriage and each said telescopic tubular member embodied therein for pivoting the said telescopic tubular members about the said axis, means including an axially movable connection between each said telescopic tubular member and its respective pivoting means for moving the said tubular members outwardly and inwardly without pivoting movement of the telescopic tubular members about the said axis, and load lift arms connected at the outer ends of the said tubular members, respectively.
Claim 2
Dependent Claim
130 words
A load handling apparatus comprising an elongated beam member, a pair of carriages carried by the said beam member, each carriage including a transverse tube defining a transverse axis, two pairs of coaxial telescopic tubular members located one pair in each said transverse tube and projecting from the respective ends thereof, means connected respectively between each said carriage and each said telescopic tubular member embodied therein for pivoting the said telescopic tubular members about the said axis, means including an axially movable connection between each said telescopic tubular member and its respective pivoting means for moving the said tubular members outwardly and inwardly without pivoting movement of the telescopic tubular members about the said axis, and load lift arms connected at the outer ends of the said tubular members, respectively.
Claim 3
Dependent Claim
43 words
A load handling apparatus as specified in claim 1 in which each of the said carriages includes a pair of support brackets arranged so that the respective load lift arms engage the said brackets respectively in one condition of the load handling apparatus.
Claim 4
Dependent Claim
23 words
A load handling apparatus as specified in claim 2 in which the said load lift arms are releasably latched to their respective brackets.
Claim 5
Dependent Claim
37 words
A load handling apparatus as specified in claim 3 in which the said carriages are both movably mounted on the said beam member, and means are provided for adjustably positioning the said carriages on the beam member.
Claim 6
Dependent Claim
52 words
A load handLing apparatus as specified in claim 1 in which each of the lift arms includes a container handling fitting detachably connected thereto, the said fittings being arranged so that they engage side openings in a cargo container to be lifted as the load lift arms are moved toward each other.
Claim 7
Dependent Claim
52 words
A load handling apparatus as specified in claim 4 in which each of the lift arms includes a hook portion adjacent its pivot axis, the said hook portions being arranged so that they engage end openings in a cargo container to be lifted as the said carriages are moved toward each other.
Claim 8
Dependent Claim
28 words
A load handling apparatus as specified in claim 1 in which the said load lift arms have adjustable lift shoes, pivotable laterally outwardly, at the outer ends thereof.
Claim 9
Dependent Claim
110 words
A load handling device comprising a support structure including a transverse tube defining a transverse axis, a pair of telescopic tubular members projecting from the opposite ends of the said transverse tube, means connected between the said support structure and the said telescopic tubular members respectively for pivoting the said telescopic tubular members about the said axis, means including an axially movable connection between each said telescopic tubular member and said pivoting means for moving the said telescopic tubular members outwardly and inwardly without pivoting movement of the telescopic tubular members about the said axis, and load lift arms connected at the outer ends of the said telescopic tubular members.
Claim 10
Dependent Claim
110 words
A load handling device comprising a support structure including a transverse tube defining a transverse axis, a pair of telescopic tubular members projecting from the opposite ends of the said transverse tube, means connected between the said support structure and the said telescopic tubular members respectively for pivoting the said telescopic tubular members about the said axis, means including an axially movable connection between each said telescopic tubular member and said pivoting means for moving the said telescopic tubular members outwardly and inwardly without pivoting movement of the telescopic tubular members about the said axis, and load lift arms connected at the outer ends of the said telescopic tubular members.
Claim 11
Dependent Claim
48 words
A load handling device as specified in claim 8 in which the said support structure includes a pair of support brackets located one on each side and arranged so that the said load lift arms engage the said brackets respectively in one condition of the load handling apparatus.
Claim 12
Dependent Claim
23 words
A load handling device as specified in claim 9 in which the said load lift arms are releasably latched to their respective brackets.
Claim 13
Dependent Claim
39 words
A load handling device as specified in claim 10 in which the said support structure is movably mounted on a beam member, and means are provided for adjustably positioning the said support structure longitudinally on the said beam member.
Claim 14
Dependent Claim
83 words
A load handling device as specified in claim 8 in which the said last-named means includes for each said telescopic tubular member an elongated slot in the telescopic tubular member parallel to the said axis, a muff surrounding the said transverse tube and movable circumferentially relative to the transverse tube, a cutout portion in the said transverse tube, and a key member carried by each said muff and extending through said cutout portion into the said slot in the respective telescopic tubular member.
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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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |