US3329288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charging bucket assembly for charging crucibles or the like
Assignee: Lester B Knight & Associates I
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Filing: 1965-10-05
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Granted: 1967-07-04
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Expires: 1985-10-05
Abstract
No abstract record available.
Inventors
- 👤 Lester B Knight
- 👤 Jacques H Bertrand
- 👤 John E Fialkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:50
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/0025; F27D3/0027; F27D3/0028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
IN A BUCKET ASSEMBLY FOR LOADING THE CRUCIBLE OF AN INDUCTION FURNACE OR THE LIKE, THE COMBINATION COMPRISING A CYLINDRICAL BODY, A PAIR OF SEMI-FRUSTOCONICAL GATES AT THE LOWER END OF THE BODY AND HAVING HORIZONTAL HINGE CONNECTIONS THEREWITH, SAID GATES MOVABLE FROM A CLOSED POSITION IN WHICH THE GATES ENGAGE ONE ANOTHER AND THE LOWER EDGE OF THE BODY AND AN OPEN POSITION IN WHICH THE GATES ARE SPREAD OUTWARDLY AND DOWNWARDLY, A CYLINDRICAL SUPPORTING SHROUD SECURED CONCENTRICALLY TO THE BODY AND SURROUNDING THE GATES, GATE OPERATING MEMBERS EACH HAVING A VERTICAL PORTION WHICH EXTENDS DOWNWARDLY ALONG THE OPPOSITE SIDES OF THE BODY AND HAVING THEIR LOWER ENDS COUPLED TO THE GATES, MEANS FOR MOUNTING THE VERTICAL PORTION OF THE OPERATING MEMBERS FOR STRAIGHT LINE SLIDING MOVEMENT ALONGSIDE THE BODY, AND A BAIL HAVING ITS ENDS PIVOTALLY CONNECTED TO THE UPPER ENDS OF THE OPERATING MEMBERS SO THAT THE BAIL MAINTAINS AN UPWARDLY DIRECTED FORCE ON THE OPERATING MEMBERS TO MAINTAIN THE GATES CLOSED DURING THE TRANSPORT OF THE ASSEMBLY WHILE ALLOWING THE GATES TO OPEN UNDER THE FORCE OF GRAVITY AS THE BAIL IS LOWERED FOLLOWING SEATING OF THE SHROUD UPON A CRUCIBLE.
Claim 2
Dependent Claim
195 words
IN A BUCKET ASSEMBLY FOR LOADING THE CRUCIBLE OF AN INDUCTION FURNACE OR THE LIKE, THE COMBINATION COMPRISING A CYLINDRICAL BODY, A PAIR OF SEMI-FRUSTOCONICAL GATES AT THE LOWER END OF THE BODY AND HAVING HORIZONTAL HINGE CONNECTIONS THEREWITH, SAID GATES MOVABLE FROM A CLOSED POSITION IN WHICH THE GATES ENGAGE ONE ANOTHER AND THE LOWER EDGE OF THE BODY AND AN OPEN POSITION IN WHICH THE GATES ARE SPREAD OUTWARDLY AND DOWNWARDLY, A CYLINDRICAL SUPPORTING SHROUD SECURED CONCENTRICALLY TO THE BODY AND SURROUNDING THE GATES, GATE OPERATING MEMBERS EACH HAVING A VERTICAL PORTION WHICH EXTENDS DOWNWARDLY ALONG THE OPPOSITE SIDES OF THE BODY AND HAVING THEIR LOWER ENDS COUPLED TO THE GATES, MEANS FOR MOUNTING THE VERTICAL PORTION OF THE OPERATING MEMBERS FOR STRAIGHT LINE SLIDING MOVEMENT ALONGSIDE THE BODY, AND A BAIL HAVING ITS ENDS PIVOTALLY CONNECTED TO THE UPPER ENDS OF THE OPERATING MEMBERS SO THAT THE BAIL MAINTAINS AN UPWARDLY DIRECTED FORCE ON THE OPERATING MEMBERS TO MAINTAIN THE GATES CLOSED DURING THE TRANSPORT OF THE ASSEMBLY WHILE ALLOWING THE GATES TO OPEN UNDER THE FORCE OF GRAVITY AS THE BAIL IS LOWERED FOLLOWING SEATING OF THE SHROUD UPON A CRUCIBLE.
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |