US3160296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace-charging device
Assignee: MH Treadwell Co Inc
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Filing: 1962-06-14
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Granted: 1964-12-08
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Expires: 1982-06-14
Abstract
No abstract record available.
Inventors
- 👤 Frank L Tocher
- 👤 Kleinman Mitchel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:35
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/0025; F27D3/0031
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A FURNACE-CHARGING DEVICE COMPRISING A LIFTABLE FRAME ADAPTED TO REST ON A GENERALLY HORIZONTAL SURFACE AND HAVING LIFTING-LUG MEANS ADAPTED FOR ENGAGEMENT BY INDEPENDENT LIFTING MEANS TO ENABLE THE FRAME TO BE LIFTED FROM SAID SURFACE, PLURAL BOXES SEPARATELY PIVOTED TO SAID FRAME FOR PIVOTAL MOVEMENT IN A VERTICAL PLANE, AND SEPARATE TILTING MEANS FOR EACH OF SAID BOXES, CARRIED BY SAID FRAME AND COACTING SEPARATELY WITH SAID BOXES TO PIVOT AND THEREBY TILT THE LATTER, SAID TILTING MEANS COMPRISING, FOR EACH OF SAID BOXES, AN UPRIGHT COLUMN CONSTITUTING A PART OF SAID FRAME, A MOVABLE ENDLESS CHAIN CARRIED BY SAID COLUMN, AND PLURAL WHEELS, MOUNTED FOR ROTATION ON SAID FRAME, COACTING WITH SAID CHAIN TO GUIDE THE LATTER IN A FIXED COURSE OF LINEAR MOVEMENT, ONE OF SAID WHEELS BEING LOCATED AT AN UPPER PORTION OF SAID COLUMN AND A LIFTING PORTION OF SAID CHAIN EXTENDING SUBSTANTIALLY VERTICALLY TO SAID ONE WHEEL AND HAVING A LIFTING LINK; THE TILTING MEANS FURTHER COMPRISING A LIFTING TONGUE RIGIDLY INTEGRAL WITH A RELATED BOX AND EXTENDING REARWARDLY THEREOF
Claim 2
Dependent Claim
176 words
A FURNACE-CHARGING DEVICE COMPRISING A LIFTABLE FRAME ADAPTED TO REST ON A GENERALLY HORIZONTAL SURFACE AND HAVING LIFTING-LUG MEANS ADAPTED FOR ENGAGEMENT BY INDEPENDENT LIFTING MEANS TO ENABLE THE FRAME TO BE LIFTED FROM SAID SURFACE, PLURAL BOXES SEPARATELY PIVOTED TO SAID FRAME FOR PIVOTAL MOVEMENT IN A VERTICAL PLANE, AND SEPARATE TILTING MEANS FOR EACH OF SAID BOXES, CARRIED BY SAID FRAME AND COACTING SEPARATELY WITH SAID BOXES TO PIVOT AND THEREBY TILT THE LATTER, SAID TILTING MEANS COMPRISING, FOR EACH OF SAID BOXES, AN UPRIGHT COLUMN CONSTITUTING A PART OF SAID FRAME, A MOVABLE ENDLESS CHAIN CARRIED BY SAID COLUMN, AND PLURAL WHEELS, MOUNTED FOR ROTATION ON SAID FRAME, COACTING WITH SAID CHAIN TO GUIDE THE LATTER IN A FIXED COURSE OF LINEAR MOVEMENT, ONE OF SAID WHEELS BEING LOCATED AT AN UPPER PORTION OF SAID COLUMN AND A LIFTING PORTION OF SAID CHAIN EXTENDING SUBSTANTIALLY VERTICALLY TO SAID ONE WHEEL AND HAVING A LIFTING LINK; THE TILTING MEANS FURTHER COMPRISING A LIFTING TONGUE RIGIDLY INTEGRAL WITH A RELATED BOX AND EXTENDING REARWARDLY THEREOF
References Cited (Backward Citations)
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Cited
US1218029A
Cited
US2622924A
Cited
US2836309A
Cited
US3115336A
Cited
US3107797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |