Patent US3270219A successfully refreshed from Google Patents.
US3270219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-stroke electromagnetic vibrators
Assignee: CALOR APP ELECTRO DOMESTIQUES
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Filing: 1963-10-15
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Granted: 1966-08-30
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Expires: 1983-10-15
Abstract
No abstract record available.
Inventors
- 👤 Trouilhet Mauric Marie-Achille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:28
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
AN ELECTROMAGNETIC VIBRATOR DEVICE COMPRISING AN ARMATURE EXTENDING BETWEEN POLE FACES OF A STATOR FOR ENERGIZATION BY AN ALTERNATING CURRENT, SAID ARMATURE BEING PIVOTALLY MOUNTED FOR OSCILLATORY MOTION ABOUT AN AXIS INTERMEDIATE ITS LENGTH AND BEING ENGAGED BY A PAIR OF SPRINGS EACH OF WHICH ENGAGES SAID ARMATURE ON OPPOSITE SIDES OF ITS POINT OF PIVOTAL MOUNTING AND SO AS TO TEND TO ROTATE THE ARMATURE IN OPPOSITE DIRECTIONS ABOUT SAID AXIS, WHEREIN SAID SPRINGS EXTENDING SUBSTANTIALLY PARALLEL TO THE IMAGINARY LINE JOINING THE OPPOSITE POLE OF SAID STATOR, ARE SUPPORTED ON A SLIDER MEMBER WHICH IS CAPABLE OF TRANSLATION ADJUSTMENT IN A DIRECTION PERPENDICULAR TO SAID AXIS FOR ADJUSTMENT OF THE RETURN FORCE EXERTED BY SAID SPRINGS, A CONTROL DEVICE BEING PROVIDED FOR FIXING SAID SLIDING MEMBER AGAINST TRANSLATION MOVEMENT IN ANY POSITION OF ADJUSTMENT THEREOF.
Claim 2
Dependent Claim
137 words
AN ELECTROMAGNETIC VIBRATOR DEVICE COMPRISING AN ARMATURE EXTENDING BETWEEN POLE FACES OF A STATOR FOR ENERGIZATION BY AN ALTERNATING CURRENT, SAID ARMATURE BEING PIVOTALLY MOUNTED FOR OSCILLATORY MOTION ABOUT AN AXIS INTERMEDIATE ITS LENGTH AND BEING ENGAGED BY A PAIR OF SPRINGS EACH OF WHICH ENGAGES SAID ARMATURE ON OPPOSITE SIDES OF ITS POINT OF PIVOTAL MOUNTING AND SO AS TO TEND TO ROTATE THE ARMATURE IN OPPOSITE DIRECTIONS ABOUT SAID AXIS, WHEREIN SAID SPRINGS EXTENDING SUBSTANTIALLY PARALLEL TO THE IMAGINARY LINE JOINING THE OPPOSITE POLE OF SAID STATOR, ARE SUPPORTED ON A SLIDER MEMBER WHICH IS CAPABLE OF TRANSLATION ADJUSTMENT IN A DIRECTION PERPENDICULAR TO SAID AXIS FOR ADJUSTMENT OF THE RETURN FORCE EXERTED BY SAID SPRINGS, A CONTROL DEVICE BEING PROVIDED FOR FIXING SAID SLIDING MEMBER AGAINST TRANSLATION MOVEMENT IN ANY POSITION OF ADJUSTMENT THEREOF.
References Cited (Backward Citations)
US3042817A
Cited
US3155855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |