US3312841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic vibrator
Assignee: Shinko Electric Co Ltd
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Filing: 1963-10-22
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Granted: 1967-04-04
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Expires: 1983-10-22
Abstract
No abstract record available.
Inventors
- 👤 Makino Shinobu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:43
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
IN AN ELECTRICAL VIBRATOR: A BASE; A FIRST CYLINDER EXTENDING SUBSTANTIALLY PERPENDICULARLY FROM SAID BASE; AN ELECTROMAGNET HAVING A CORE EXTENDING IN A DIRECTION SUBSTANTIALLY PARALLEL TO SAID FIRST CYLINDER; AND ARMATURE, SAID ARMATURE BEING SPACED FROM SAID ELECTROMAGNET CORE BY A PREDETERMINED DISTANCE; AND A HOLDING FRAME TO SUPPORT DAID ARMATURE AND INCLUDING A SECOND CYLINDER ARRANGED SUBSTANTIALLY PARALLEL TO SAID FIRST CYLINDER AND BEING OF A DIAMETER DIFFERENT FROM THAT OF THE FIRST CYLINDER, SAID CYLINDERS FITTING, WITH CLEARANCE, ONE WITHIN THE OTHER, AND A RING-SHAPED RESILIENT BODY LOCATED IN THE CLEARANCE BETWEEN SAID CYLINDERS AND BEING ADHESIVELY SECURED THERETO, SAID HOLDING FRAME BEING SUPPORTED IN A FREELY HANGING POSITION BY SAID RESILIENT BODY, WITH THE LATTER STRESSED EXCLUSIVELY BY THE WEIGHT OF SAID HOLDING FRAME AND SAID ARMATURE SUPPORTED THEREBY.
References Cited (Backward Citations)
USRE19817E
Cited
US2206244A
Cited
GB726159A
Cited
US2803762A
Cited
US2958792A
Cited
FR1214250A
Cited
US3053965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |