Patent US1875230A successfully refreshed from Google Patents.
US4067460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for improving transloading pourable materials by means of a grab bucket
Assignee: VULKAN HAFENTECHNIK GmbH
•
Filing: 1975-03-26
•
Granted: 1978-01-10
•
Expires: 1995-03-26
Abstract
Abstract An arrangement for improving transloading pourable materials by means of a grab bucket, according to which a hood is carried by a crane member on which a grab bucket is suspended by hoisting means. The arrangement is such that the grab bucket can be pulled selectively from below into the hood which is so dimensioned as to allow the grab bucket substantially fully to open within the hood. The lower rim of the hood which surrounds the inlet opening for the grab bucket and the upper rim of a chute-like member through which the goods to be transloaded are from the grab bucket passed into a receiver, are flange-shaped and of at least nearly equal circumferential dimensions. If desired, an elastic member, e.g. a sealing ring or an inflatable hose may rest on and be connected to the flange-shaped rim of the chute-like member.
Inventors
- 👤 Wilhelm Schwarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:40
CPC Classifications
B; B66; B66C; B66C3/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
In combination with a movable crane part and a grab bucket suspended thereon including actuating means for opening and closing said grab bucket, a device which includes: hood means, means mounting said hood means to said movable crane part, said hood means having an opening adjacent the bottom portion thereof so as to permit said grab bucket to be selectively moved into and out of said hood means, flange means surrounding said opening, the interior of said hood means being so dimensioned as to allow said grab bucket to completely open within said hood means, lifting and lowering means supported by said crane part and extending through and into said hood means and being securely connected to said grab bucket, said lifting and lowering means being operable to pull said grab bucket into its uppermost position within said hood means and to lower it out of said hood, material receiving means having at least an open top portion with flange means surrounding same, said movable crane part being operative to selectively place said hood means over said material receiving means with the respective one of said flange means being vertically and spacedly aligned to provide accurate transfer of material between said grab bucket and material receiving means.
Claim 2
Dependent Claim
207 words
In combination with a movable crane part and a grab bucket suspended thereon including actuating means for opening and closing said grab bucket, a device which includes: hood means, means mounting said hood means to said movable crane part, said hood means having an opening adjacent the bottom portion thereof so as to permit said grab bucket to be selectively moved into and out of said hood means, flange means surrounding said opening, the interior of said hood means being so dimensioned as to allow said grab bucket to completely open within said hood means, lifting and lowering means supported by said crane part and extending through and into said hood means and being securely connected to said grab bucket, said lifting and lowering means being operable to pull said grab bucket into its uppermost position within said hood means and to lower it out of said hood, material receiving means having at least an open top portion with flange means surrounding same, said movable crane part being operative to selectively place said hood means over said material receiving means with the respective one of said flange means being vertically and spacedly aligned to provide accurate transfer of material between said grab bucket and material receiving means.
Claim 3
Dependent Claim
17 words
The combination according to claim 1, which includes means for selectively withdrawing air from said hood means.
Claim 4
Dependent Claim
29 words
The combination according to claim 2, in which said hood means is provided with openings for drawing air from the outside of said hood means into the interior thereof.
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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |