Patent US3296468A successfully refreshed from Google Patents.
US3296468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrator motors for electric dry shavers
Assignee: Morphy Richards Cray Ltd
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Filing: 1964-01-28
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Granted: 1967-01-03
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Expires: 1984-01-28
Abstract
No abstract record available.
Inventors
- 👤 Townshend Rochard Chambrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:19
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; B; B26; B26B; B26B19/00; B26B19/28; B26B19/282; B26B19/284; H02K33/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A VIBRATOR MOTOR COMPRISING AN ELECTRO-MAGNET ASSEMBLY, AN ARMATURE ASSEMBLY, PIVOTAL MOUNTINGS FOR BOTH SAID ELECTRO-MAGNET ASSEMBLY AND SAID ARMATURE ASSEMBLY, MECHANICAL COUPLING MEANS FROM SAID ELECTRO-MAGNET ASSEMBLY TO SAID ARMATURE ASSEMBLY TO CAUSE SAID ELECTROMAGNET ASSEMBLY AND SAID ARMATURE ASSEMBLY TO MOVE IN ANTI-PHASE ABOUT THEIR PIVOTAL MOUNTINGS THE ONE WITH RESPECT TO THE OTHER UNDER THE CONSTRAINT OF SAID MECHANICAL MEANS WHEN SAID ELECTRO-MAGNET IS ENERGISED IN SUCH A WAY THAT THE RELATIVE ANGULAR MOVEMENTS OF SAID ARMATURE ASSEMBLY AND SAID ELECTROMAGNET ASSEMBLY ARE PREDETERMINED BY SAID MECHANICAL MEANS.
Claim 2
Dependent Claim
91 words
A VIBRATOR MOTOR COMPRISING AN ELECTRO-MAGNET ASSEMBLY, AN ARMATURE ASSEMBLY, PIVOTAL MOUNTINGS FOR BOTH SAID ELECTRO-MAGNET ASSEMBLY AND SAID ARMATURE ASSEMBLY, MECHANICAL COUPLING MEANS FROM SAID ELECTRO-MAGNET ASSEMBLY TO SAID ARMATURE ASSEMBLY TO CAUSE SAID ELECTROMAGNET ASSEMBLY AND SAID ARMATURE ASSEMBLY TO MOVE IN ANTI-PHASE ABOUT THEIR PIVOTAL MOUNTINGS THE ONE WITH RESPECT TO THE OTHER UNDER THE CONSTRAINT OF SAID MECHANICAL MEANS WHEN SAID ELECTRO-MAGNET IS ENERGISED IN SUCH A WAY THAT THE RELATIVE ANGULAR MOVEMENTS OF SAID ARMATURE ASSEMBLY AND SAID ELECTROMAGNET ASSEMBLY ARE PREDETERMINED BY SAID MECHANICAL MEANS.
Claim 3
Dependent Claim
67 words
A VIBRATOR MOTOR ACCORDING TO CLAIM 1 FURTHER COMPRISING A CONTAINING CASE, A FRAME MOUNTED FOR SMALL ANGLE OSCILLATORY MOVEMENT IN SAID CASE AND TO WHICH FRAME SAID ELECTRO-MAGNET IS RIGIDLY SECURED AND SAID ARMATURE IS PIVOTED, AND A FURTHER YIELDING PIVOT FOR SAID ARMATURE CONNECTED TO SAID CASE, THE PIVOTING OF SAID ARMATURE TO SAID FRAME PROVIDING THE MECHANICAL COUPLING FROM SAID ELECTROMAGNET TO SAID ARMATURE.
Claim 4
Dependent Claim
56 words
A VIBRATOR MOTOR ACCORDING TO CLAIM 2, SAID YIELDING PIVOT COMPRISES A BRIDGE PIECE HAVING TWO KNIFE EDGE BEARINGS, A V SEATING FOR ONE OF SAID BEARINGS ATTACHED TO SAID CASE, A V SEATING FOR THE OTHER OF SAID BEARINGS ATTACHED TO SAID ARMATURE, AND SPRING MEANS URGING SAID KNIFE EDGE BEARINGS INTO SAID V SEATINGS.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |