US3820469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for transportation of loads between operations
Assignee: Individual
•
Filing: 1972-12-11
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Granted: 1974-06-28
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Expires: 1992-12-11
Abstract
Abstract The device of the present invention comprises overhead guide tracks along each of which carriages travel carrying a traction member and hooks for attaching a hanger with a load. Between these tracks there is arranged an overhead transfer conveyor, each trolley of which has a fork engaging with a carriage when the load is being transferred, and a lever for gripping the hanger. The lever is supported on master guides for lifting or lowering it when the hanger is being removed from or attached to a hook. These guides have a shaped groove fixing the trolley in the engagement zone. The front tooth of the fork is designed longer to be than the rear one, which makes it possible to select a length of the shaped groove that will ensure a reduction of the dynamic loads when a trolley with its load stops.
Inventors
- 👤 M Rikman
- 👤 F Ioffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:53
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/02; B61B10/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
332 words
A device for the transportation of loads between stations comprising: first and second overhead guide track means; first carriage means arranged on each of said guide track means; a first traction member means secured to said first carriage means; hook means secured to said first carriage means; hanger means for carrying said loads and attached to said hook means; an overhead transfer conveyor means arranged between said first and second guide track means and including; second carriage means of said conveyor; overhead track means wherealong said second carriage means move; a second traction member means secured to said second carriage means; pusher means secured to said second traction member means; trolleys interacting with said pusher means for motion thereof; rail means whereon said trolleys move; a fork means secured to each of said trolleys, said fork means having a front and rear tooth for engagement with said first carriage means of said overhead guide track means to ensure synchronous travel of said trolley with said first carriage means when said hanger means is removed from or attached to said hook means; a lever mounted on said trolley to grip said hanger means when it is being transferred from the first carriage means of said first guide track means to the first carriage means of said second guide track means; master guide means on which said lever is supported, and having a shaped groove disposed in the zone of engagement of said first carriage means with said trolley carrying one of said hanger means with the load, the groove being used to stop the trolley; said front tooth of said fork means being made longer than the rear tooth, and the length of said shaped groove being selected so as to ensure reduction of the dynamic loads when the loaded trolley is stationary; said master guide means being disposed so as to lift and lower said lever when said hanger means with the load is removed from or attached to said hook means.
Claim 2
Independent Claim
332 words
A device for the transportation of loads between stations comprising: first and second overhead guide track means; first carriage means arranged on each of said guide track means; a first traction member means secured to said first carriage means; hook means secured to said first carriage means; hanger means for carrying said loads and attached to said hook means; an overhead transfer conveyor means arranged between said first and second guide track means and including; second carriage means of said conveyor; overhead track means wherealong said second carriage means move; a second traction member means secured to said second carriage means; pusher means secured to said second traction member means; trolleys interacting with said pusher means for motion thereof; rail means whereon said trolleys move; a fork means secured to each of said trolleys, said fork means having a front and rear tooth for engagement with said first carriage means of said overhead guide track means to ensure synchronous travel of said trolley with said first carriage means when said hanger means is removed from or attached to said hook means; a lever mounted on said trolley to grip said hanger means when it is being transferred from the first carriage means of said first guide track means to the first carriage means of said second guide track means; master guide means on which said lever is supported, and having a shaped groove disposed in the zone of engagement of said first carriage means with said trolley carrying one of said hanger means with the load, the groove being used to stop the trolley; said front tooth of said fork means being made longer than the rear tooth, and the length of said shaped groove being selected so as to ensure reduction of the dynamic loads when the loaded trolley is stationary; said master guide means being disposed so as to lift and lower said lever when said hanger means with the load is removed from or attached to said hook means.
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |