US3335875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic gantry crane
Assignee: Anderston Clyde Engineers Ltd
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Filing: 1966-01-10
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Granted: 1967-08-15
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Expires: 1986-01-10
Abstract
No abstract record available.
Inventors
- 👤 Fachinetti Piergiovanni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
B; B66; B66C; B66C19/00; B66C19/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A MOBILE CRANE INCLUDING A CRANE STRUCTURE, THREE WHEELED SUPPORTS WHICH SUPPORT THE CRANE STRUCTURE AND RENDER IT MOBILE AND MANEUVERABLE FOR LIFTING AND CARRYING THE LOAD, THE WHEELED SUPPORTS BEING POSITIONED AT THE APICES OF A TRIANGLE, TWO OF THE SAID SUPPORTS BEING EACH ROTATABLE ABOUT A SUBSTANTIALLY VERTICAL AXIS, AND STEERING MEANS CONNECTED TO THE ROTATABLE WHEELED SUPPORTS AND ADAPTED SO AS TO ROTATE EACH OF THE SAID SUPPORTS THROUGH EQUAL ANGLES BUT IN OPPOSITE DIRECTIONS, THE CRANE STRUCTURE BEING ADAPTED TO CARRY THE LOAD WITH THE CENTRE OF GRAVITY OF SUCH LOAD LOCATED VERTICALLY INSIDE THE SAID TRIANGLE.
Claim 2
Dependent Claim
101 words
A MOBILE CRANE INCLUDING A CRANE STRUCTURE, THREE WHEELED SUPPORTS WHICH SUPPORT THE CRANE STRUCTURE AND RENDER IT MOBILE AND MANEUVERABLE FOR LIFTING AND CARRYING THE LOAD, THE WHEELED SUPPORTS BEING POSITIONED AT THE APICES OF A TRIANGLE, TWO OF THE SAID SUPPORTS BEING EACH ROTATABLE ABOUT A SUBSTANTIALLY VERTICAL AXIS, AND STEERING MEANS CONNECTED TO THE ROTATABLE WHEELED SUPPORTS AND ADAPTED SO AS TO ROTATE EACH OF THE SAID SUPPORTS THROUGH EQUAL ANGLES BUT IN OPPOSITE DIRECTIONS, THE CRANE STRUCTURE BEING ADAPTED TO CARRY THE LOAD WITH THE CENTRE OF GRAVITY OF SUCH LOAD LOCATED VERTICALLY INSIDE THE SAID TRIANGLE.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |