US3336878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote winch operated trolley hoist
Assignee: Individual
•
Filing: 1965-11-23
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Granted: 1967-08-22
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Expires: 1985-11-23
Abstract
No abstract record available.
Inventors
- 👤 Malakhoff Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:33
CPC Classifications
B; B66; B66C; B66C21/00; B66C2700/00; B66C2700/01; B66C2700/011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
253 words
A TROLLEY FOR USE WITH A LOAD TRANSFER SYSTEM EMPLOYING A TENSIONED HIGH LINE RIDABLY SUPPORTING THE TROLLEY AND A HAUL LINE DRIVEN BY OUTHAUL AND INHAUL WINCHES FOR MOVING SAID TROLLEY BACK AND FORTH BETWEEN A PAIR OF STATIONS, SAID TROLLEY COMPRISING; A VERTICAL FRAME, A DRUM CARRIED BY THE FRAME, A HOIST LINE WOUND ON SAID DRUM, A PAIR OF ROLLERS CARRIED BY THE FRAME AND DISPOSED FOR ENGAGING SAID HIGH LINE FOR RIDABLY SUPPORTING THE TROLLEY, A HAUL LINE SHEAVE CARRIED BY THE FRAME IN FRICTIONAL ENGAGEMENT WITH SAID HAUL LINE, THE FRICTIONAL ENGAGEMENT BEING SUCH THAT MOVEMENT OF THE HAUL LINE RELATIVE TO THE TROLLEY CAUSES SAID SHEAVE TO ROTATE, DRIVING MEANS COUPLING SAID HAUL LINE SHEAVE AND SAID DRUM FOR IMPARTING SAID SHEAVE ROTATION TO SAID DRUM WHEREUPON SAID HOIST LINE IS REELED OUT AND IN, HIGH LINE BRAKE MEANS CARRIED BY THE FRAME AND DISPOSED FOR ENGAGING THE HIGH LINE FOR ARRESTING TROLLEY MOVEMENT, HAUL LINE BRAKE MEANS CARRIED BY THE FRAME AND DISPOSED FOR ENGAGING THE HAUL LINE FOR MOVING THE TROLLEY WITH THE HAUL LINE, AND BRAKE-OPERATING MEANS FOR REMOTELY AND CONTROLLABLY OPENING AND CLOSING BOTH OF THE BRAKE MEANS, THE OPERATION OF SAID OPERATING MEANS CAUSING SAID HIGH LINE BRAKE TO CLOSE FOR ARRESTING TROLLEY MOVEMENT AND SAID HAUL LINE BRAKE TO OPEN; WHEREUPON SAID OUTHAUL AND INHAUL WINCHES CAN BE DRIVEN FOR MOVING THE HAUL LINE RELATIVE TO THE ARRESTED TROLLEY FOR FRICTIONALLY ROTATING SAID SHEAVE AND DRUM FOR REELING SAID HOIST LINE.
Claim 2
Dependent Claim
253 words
A TROLLEY FOR USE WITH A LOAD TRANSFER SYSTEM EMPLOYING A TENSIONED HIGH LINE RIDABLY SUPPORTING THE TROLLEY AND A HAUL LINE DRIVEN BY OUTHAUL AND INHAUL WINCHES FOR MOVING SAID TROLLEY BACK AND FORTH BETWEEN A PAIR OF STATIONS, SAID TROLLEY COMPRISING; A VERTICAL FRAME, A DRUM CARRIED BY THE FRAME, A HOIST LINE WOUND ON SAID DRUM, A PAIR OF ROLLERS CARRIED BY THE FRAME AND DISPOSED FOR ENGAGING SAID HIGH LINE FOR RIDABLY SUPPORTING THE TROLLEY, A HAUL LINE SHEAVE CARRIED BY THE FRAME IN FRICTIONAL ENGAGEMENT WITH SAID HAUL LINE, THE FRICTIONAL ENGAGEMENT BEING SUCH THAT MOVEMENT OF THE HAUL LINE RELATIVE TO THE TROLLEY CAUSES SAID SHEAVE TO ROTATE, DRIVING MEANS COUPLING SAID HAUL LINE SHEAVE AND SAID DRUM FOR IMPARTING SAID SHEAVE ROTATION TO SAID DRUM WHEREUPON SAID HOIST LINE IS REELED OUT AND IN, HIGH LINE BRAKE MEANS CARRIED BY THE FRAME AND DISPOSED FOR ENGAGING THE HIGH LINE FOR ARRESTING TROLLEY MOVEMENT, HAUL LINE BRAKE MEANS CARRIED BY THE FRAME AND DISPOSED FOR ENGAGING THE HAUL LINE FOR MOVING THE TROLLEY WITH THE HAUL LINE, AND BRAKE-OPERATING MEANS FOR REMOTELY AND CONTROLLABLY OPENING AND CLOSING BOTH OF THE BRAKE MEANS, THE OPERATION OF SAID OPERATING MEANS CAUSING SAID HIGH LINE BRAKE TO CLOSE FOR ARRESTING TROLLEY MOVEMENT AND SAID HAUL LINE BRAKE TO OPEN; WHEREUPON SAID OUTHAUL AND INHAUL WINCHES CAN BE DRIVEN FOR MOVING THE HAUL LINE RELATIVE TO THE ARRESTED TROLLEY FOR FRICTIONALLY ROTATING SAID SHEAVE AND DRUM FOR REELING SAID HOIST LINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |