US2730283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charging reduction containers for the production of sponge metals
Assignee: Hoganas Billesholms AB
•
Filing: 1948-02-20
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Granted: 1956-01-10
•
Expires: 1968-02-20
Abstract
No abstract record available.
Inventors
- 👤 Sieurin Sven Emil
- 👤 Olsson Edvin Verner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:32
CPC Classifications
C; C21; C21B; C21B13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
APPARATUS OF THE CHARACTER DESCRIBED FOR FILLING A CONTAINER WITH DIFFERENT MATERIALS IN FREE FLOWING PARTICLE STATE COMPRISING AN OUTER HOPPER HAVING AN OUTLET DIMENSIONED TO FIT THE RIM DEFINING THE OPEN TOP OF A CONTAINER AND AN INNER HOPPER WITHIN SAID OUTER HOPPER, SAID INNER HOPPER PROVIDING A PLURALITY OF LATERALLY SPACED APART FEEDING CHANNELS EXTENDING BEYOND THE OPENING IN SAID OUTER HOPPER AND DIMENSIONED TO TERMINATE SHORT OF THE BOTTOM OF THE CONTAINER WHEN THE LATTER IS POSITIONED CONTACT WITH THE RIM OF THE OUTLET OPENING OF THE OUTER
Claim 2
Dependent Claim
91 words
APPARATUS OF THE CHARACTER DESCRIBED FOR FILLING A CONTAINER WITH DIFFERENT MATERIALS IN FREE FLOWING PARTICLE STATE COMPRISING AN OUTER HOPPER HAVING AN OUTLET DIMENSIONED TO FIT THE RIM DEFINING THE OPEN TOP OF A CONTAINER AND AN INNER HOPPER WITHIN SAID OUTER HOPPER, SAID INNER HOPPER PROVIDING A PLURALITY OF LATERALLY SPACED APART FEEDING CHANNELS EXTENDING BEYOND THE OPENING IN SAID OUTER HOPPER AND DIMENSIONED TO TERMINATE SHORT OF THE BOTTOM OF THE CONTAINER WHEN THE LATTER IS POSITIONED CONTACT WITH THE RIM OF THE OUTLET OPENING OF THE OUTER
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |