US3300744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Braking device for high velocity conductive members in dividing axially spaced opposed adjacent magnetic fields
Assignee: Yissum Research Development Co of Hebrew University of Jerusalem
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Filing: 1965-01-12
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Granted: 1967-01-24
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Expires: 1985-01-12
Abstract
No abstract record available.
Inventors
- 👤 Deutsch Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:02
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/02; H02K49/04; H05; H05H; H05H1/00; H05H1/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A DEVICE FOR BRAKING MEMBERS MOVING AT A HIGH LINEAR VELOCITY, COMPRISING: A PATH OF TRAVEL FOR AN ELECTRICALLY CONDUCTIVE MEMBER TO MOVE THERETHROUGH: ELECTRO-MAGNETIC MEANS ON SAID TUBULAR MEMBER IN A TUBULAR MEMBER HAVING AN AXIAL PASSAGE FOR DEFINING SPACED RELATION AXIALLY THEREALONG FOR CREATING ADJACENT RESERVED MAGNETIC FIELDS; AND MEANS FOR SIMULTANEOUSLY ENERGIZING SAID ADJACENT ELECTRO MAGNETIC MEANS WHEREBY THE DIRECTION OF CURRENT FLOW THROUGH CONSECUTIVE ELECTRO MAGNET MEANS IS IN OPPOSITE DIRECTIONS AND ADJACENT REVERSED MAGNETIC FIELDS ARE PRODUCED FOR BRAKING THE VELOCITY OF AN ELECTRICALLY CONDUCTIVE MEMBER MOVING THROUGH SAID PASSAGE.
Claim 2
Independent Claim
95 words
A DEVICE FOR BRAKING MEMBERS MOVING AT A HIGH LINEAR VELOCITY, COMPRISING: A PATH OF TRAVEL FOR AN ELECTRICALLY CONDUCTIVE MEMBER TO MOVE THERETHROUGH: ELECTRO-MAGNETIC MEANS ON SAID TUBULAR MEMBER IN A TUBULAR MEMBER HAVING AN AXIAL PASSAGE FOR DEFINING SPACED RELATION AXIALLY THEREALONG FOR CREATING ADJACENT RESERVED MAGNETIC FIELDS; AND MEANS FOR SIMULTANEOUSLY ENERGIZING SAID ADJACENT ELECTRO MAGNETIC MEANS WHEREBY THE DIRECTION OF CURRENT FLOW THROUGH CONSECUTIVE ELECTRO MAGNET MEANS IS IN OPPOSITE DIRECTIONS AND ADJACENT REVERSED MAGNETIC FIELDS ARE PRODUCED FOR BRAKING THE VELOCITY OF AN ELECTRICALLY CONDUCTIVE MEMBER MOVING THROUGH SAID PASSAGE.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |