US3149255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical reciprocating motor
Assignee: H AND T ELECTRICAL PRODUCTS
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Filing: 1962-03-23
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Granted: 1964-09-15
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Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Anthony B Trench
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:35
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/04; H02K33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN ELECTROMAGNETIC AXIALLY RECIPROCATING MOTOR COMPRISING A GENERALLY TUBULAR STATOR HAVING LATERALLY SPACED APART COILS MOUNTED THEREIN AND AN ARMATURE COAXIALLY MOUNTED IN SAID STATOR AND SPACED FROM SAID STATOR AND SAID COILS FOR RECIPROCATING MOVEMENT ALONG THE LONGITUDINAL AXIS OF SAID STATOR, SAID STATOR BEING PROVIDED WITH HIGH RELUCTANCE GAPS BETWEEN THE SURFACE OF SAID STATOR ADJACENT SAID ARMATURE AND SAID COILS, WHEREBY THE FLUX PATHS COMPLETELY AROUND SAID COILS AND IN SAID STATOR ARE HIGH RELUCTANCE PATHS, SAID "RECIPROCABLE ARMATURE COMPRISING (A) A PLURALITY OF PERMANENT MAGNETS, (B) A PLURALITY OF POLE PIECES, AND (C) A PLURALITY OF ELECTRICALLY CONDUCTIVE, NON-MAGNETIZABLE, SHORT CIRCUITING MEMBERS,
Claim 2
Dependent Claim
106 words
AN ELECTROMAGNETIC AXIALLY RECIPROCATING MOTOR COMPRISING A GENERALLY TUBULAR STATOR HAVING LATERALLY SPACED APART COILS MOUNTED THEREIN AND AN ARMATURE COAXIALLY MOUNTED IN SAID STATOR AND SPACED FROM SAID STATOR AND SAID COILS FOR RECIPROCATING MOVEMENT ALONG THE LONGITUDINAL AXIS OF SAID STATOR, SAID STATOR BEING PROVIDED WITH HIGH RELUCTANCE GAPS BETWEEN THE SURFACE OF SAID STATOR ADJACENT SAID ARMATURE AND SAID COILS, WHEREBY THE FLUX PATHS COMPLETELY AROUND SAID COILS AND IN SAID STATOR ARE HIGH RELUCTANCE PATHS, SAID "RECIPROCABLE ARMATURE COMPRISING (A) A PLURALITY OF PERMANENT MAGNETS, (B) A PLURALITY OF POLE PIECES, AND (C) A PLURALITY OF ELECTRICALLY CONDUCTIVE, NON-MAGNETIZABLE, SHORT CIRCUITING MEMBERS,
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |