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US3135879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear motor
Assignee: General Electric Co
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Filing: 1958-08-04
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Granted: 1964-06-02
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Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:37
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02; H02K41/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A LINEAR MOTOR COMPRSING A PRIMARY MEMBER HAVING A WINDING THEREIN INCLUDING CONDUCTORS POSITIONED BETWEEN SPACED GROUPS OF LAMINATIONS, A LAMINATED YOKE SURROUNDING THE PRIMARY MEMBER FOR LIMITING THE AMPLITUDE OF CIRCULATING CURRENTS THEREIN AND A SHELL ENCOMPASSING THE LIMINATED YOKE, AN ARMATURE CENTRALLY POSITIONED WITHIN THE PRIMARY MEMBER AND HAVING ENDS EXTENDING THROUGH OPPOSITE ENDS OF THE SHELL SO THAT UPON ENERGIZATION OF THE PRIMARY WINDING FLUX ENTERS THE SECONDARY MEMBER TO CREATE A FORCE SUFFICIENT TO MOVE THE ARMATURE LINEARLY AT A SPEED WHICH IS A FUNCTION OF THE FREQUENCY AND SPACING OF POLES PROVIDED BY THE PRIMARY WINDING.
Claim 2
Dependent Claim
101 words
A LINEAR MOTOR COMPRSING A PRIMARY MEMBER HAVING A WINDING THEREIN INCLUDING CONDUCTORS POSITIONED BETWEEN SPACED GROUPS OF LAMINATIONS, A LAMINATED YOKE SURROUNDING THE PRIMARY MEMBER FOR LIMITING THE AMPLITUDE OF CIRCULATING CURRENTS THEREIN AND A SHELL ENCOMPASSING THE LIMINATED YOKE, AN ARMATURE CENTRALLY POSITIONED WITHIN THE PRIMARY MEMBER AND HAVING ENDS EXTENDING THROUGH OPPOSITE ENDS OF THE SHELL SO THAT UPON ENERGIZATION OF THE PRIMARY WINDING FLUX ENTERS THE SECONDARY MEMBER TO CREATE A FORCE SUFFICIENT TO MOVE THE ARMATURE LINEARLY AT A SPEED WHICH IS A FUNCTION OF THE FREQUENCY AND SPACING OF POLES PROVIDED BY THE PRIMARY WINDING.
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |