Patent US4025432A successfully refreshed from Google Patents.
US4025432A
Expired / Lapsed
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Flow control unit for magnetic matrix
Assignee: Sala Magnetics Inc
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Filing: 1975-07-25
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Granted: 1977-05-24
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Expires: 1995-07-25
Abstract
Abstract A flow control unit for a magnetic matrix in a magnetic separator including at least one expander section, each expander section including a channel element having at least one port, a plurality of channels extending radially outwardly from each port and terminating in a plurality of first holes; and a spreader element including a plurality of second holes equal in number and aligned with the holes of the adjacent expander section, a plurality of ducts associated with each of the second holes and a plurality of passages, one interconnecting each of the ducts with a respective one of the second holes.
Inventors
- 👤 John J. Nolan
- 👤 Peter G. Marston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:53
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0186; B; B03; B03C; B03C1/00; B03C1/02; B03C1/025
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
105 words
A flow control unit for a magnetic matrix in a magnetic separator comprising: at least one expander section, each said expander section including a channel element having at least one port, and a plurality of channels extending radially outwardly from each said port and terminating in a plurality of first holes; and a spreader element including a plurality of second holes equal in number and aligned with said holes of the adjacent said expander section, a plurality of ducts associated with each of said second holes and a plurality of passages, one interconnecting each of said ducts with its respective one of said second holes.
Claim 2
Dependent Claim
105 words
A flow control unit for a magnetic matrix in a magnetic separator comprising: at least one expander section, each said expander section including a channel element having at least one port, and a plurality of channels extending radially outwardly from each said port and terminating in a plurality of first holes; and a spreader element including a plurality of second holes equal in number and aligned with said holes of the adjacent said expander section, a plurality of ducts associated with each of said second holes and a plurality of passages, one interconnecting each of said ducts with its respective one of said second holes.
Claim 3
Dependent Claim
30 words
The flow control unit of claim 1 in which said expander section includes a restrictor element including a plurality of holes equal in number and aligned with said first holes.
Claim 4
Dependent Claim
177 words
A flow control assembly for a magnetic separator including at least one matrix, each matrix being served by at least one inlet and one outlet comprising: a distributor and a collector associated with each matrix in said separator; each said distributor and said collector including a flow control unit including: at least one expander section, each said expander section including a channel element having at least one port, and a plurality of channels extending radially outwardly from each said port and terminating in a plurality of first holes; and a spreader element including a plurality of second holes equal in number and aligned with said holes of the adjacent said expander section, a plurality of ducts associated with each of said second holes and a plurality of passages, one interconnecting each of said ducts with its respective one of said second holes; a said channel element in said distributor and a said channel element in said collector each having a number of said ports equal in number to the number of inlets and outlets per matrix, respectively.
Claim 5
Dependent Claim
177 words
A flow control assembly for a magnetic separator including at least one matrix, each matrix being served by at least one inlet and one outlet comprising: a distributor and a collector associated with each matrix in said separator; each said distributor and said collector including a flow control unit including: at least one expander section, each said expander section including a channel element having at least one port, and a plurality of channels extending radially outwardly from each said port and terminating in a plurality of first holes; and a spreader element including a plurality of second holes equal in number and aligned with said holes of the adjacent said expander section, a plurality of ducts associated with each of said second holes and a plurality of passages, one interconnecting each of said ducts with its respective one of said second holes; a said channel element in said distributor and a said channel element in said collector each having a number of said ports equal in number to the number of inlets and outlets per matrix, respectively.
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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) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |