US5107540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic resonant vibrator
Assignee: Motorola Solutions Inc
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Filing: 1989-09-07
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Granted: 1992-04-21
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Expires: 2009-09-07
Abstract
Abstract An apparatus for effecting a vibrating motion comprises a resonant planar armature, a housing, an electromagnetic device attached to the housing for effecting an alternating electromagnetic field, a magnetic device coupled to the armature and to the electromagnetic field for alternatively moving the armature in a first and a second direction in response to the electromagnetic field. The resonant planar armature comprises a plurality of planar spring members arranged regularly about a central planar region within a planar perimeter region of the armature, and the spring members provide a restoring force normal to a movement of the central region of the armature caused by the alternating electromagnetic field.
Inventors
- 👤 Charles W. Mooney
- 👤 Irving H. Holden
- 👤 George J. Selinko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:17
CPC Classifications
H; H04; H04R; H04R11/00; H04R11/06; B; B06; B06B; B06B1/00; B06B1/02; B06B1/04; B06B1/045; G; G08; G08B; G08B6/00; H04R1/00; H04R1/46; H04R25/00; H04R25/60; H04R25/604
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
111 words
An apparatus for providing a vibrating motion, comprising: a resonant planar armature comprising a plurality of independent planar spring members arranged regularly about a central planar region within a planar perimeter region, wherein said spring members provide a restoring force normal to a movement of said central region of said armature; a housing for enclosing and supporting said armature; electromagnetic means attached to said housing for effecting an alternating electromagnetic field; and a permanent magnet attached to said central region of said armature, and coupled to said electromagnetic field for alternatively moving said central region of said armature in a first and a second direction in response to the electromagnetic field.
Claim 2
Independent Claim
111 words
An apparatus for providing a vibrating motion, comprising: a resonant planar armature comprising a plurality of independent planar spring members arranged regularly about a central planar region within a planar perimeter region, wherein said spring members provide a restoring force normal to a movement of said central region of said armature; a housing for enclosing and supporting said armature; electromagnetic means attached to said housing for effecting an alternating electromagnetic field; and a permanent magnet attached to said central region of said armature, and coupled to said electromagnetic field for alternatively moving said central region of said armature in a first and a second direction in response to the electromagnetic field.
Claim 3
Dependent Claim
22 words
The apparatus in accordance with claim 1 wherein said planar perimeter region of said armature has a periphery which is substantially circular.
Claim 4
Dependent Claim
18 words
The apparatus in accordance with claim 2 wherein said armature is secured at said periphery by said housing.
Claim 5
Dependent Claim
18 words
The apparatus in accordance with claim 1 wherein said plurality planar spring members have a substantially circular geometry.
Claim 6
Dependent Claim
33 words
The apparatus in accordance with claim 1 wherein said permanent magnet includes a first magnet and a second magnet attached substantially at the center of said armature above and below said central region.
Claim 7
Dependent Claim
25 words
The apparatus in accordance with claim 1 wherein said planar spring members have a substantially rectangular cross-section having a width substantially greater than the thickness.
Claim 8
Dependent Claim
16 words
The apparatus in accordance with claim 1 wherein said housing is formed from a sheet metal.
Claim 9
Dependent Claim
118 words
An electromagnetic resonant vibrator, comprising: an armature having a planar circular perimeter region, a planar central region, and a plurality of independent planar circular spring members, arranged regularly around said central region within said perimeter region, and coupled to said perimeter region and to said central region, said spring members providing a restoring force normal to a movement of said central region of said armature; a permanent magnet, coupled to said central region; a housing, comprising an upper member and a lower member, coupled to said perimeter region, for enclosing and supporting said armature; and electromagnetic means, located within said housing and coupled to said permanent magnet, for inducing movement of said armature at a predetermined resonant frequency.
Claim 10
Dependent Claim
118 words
An electromagnetic resonant vibrator, comprising: an armature having a planar circular perimeter region, a planar central region, and a plurality of independent planar circular spring members, arranged regularly around said central region within said perimeter region, and coupled to said perimeter region and to said central region, said spring members providing a restoring force normal to a movement of said central region of said armature; a permanent magnet, coupled to said central region; a housing, comprising an upper member and a lower member, coupled to said perimeter region, for enclosing and supporting said armature; and electromagnetic means, located within said housing and coupled to said permanent magnet, for inducing movement of said armature at a predetermined resonant frequency.
Claim 11
Dependent Claim
49 words
The electromagnetic resonant vibrator of claim 8, wherein said armature has an upper surface and a lower surface, and wherein said permanent magnet includes a first magnet attached to the upper surface of said central region, and a second magnet attached to said lower surface of said central region.
Claim 12
Dependent Claim
16 words
The electromagnetic resonant vibrator of claim 8, wherein said housing is formed from a sheet metal.
Claim 13
Dependent Claim
16 words
The electromagnetic resonant vibrator of claim 8, wherein said armature is fabricated from a sheet metal.
Claim 14
Dependent Claim
15 words
The electromagnetic resonant vibrator of claim 11, wherein said sheet metal is a nickel alloy.
Claim 15
Dependent Claim
29 words
The electromagnetic resonant vibrator of claim 8, wherein said armature includes at least two planar circular spring members for providing a restoring force for the movement of said armature.
Claim 16
Dependent Claim
16 words
The electromagnetic resonant vibrator of claim 13, wherein said armature includes four planar circular spring members
Claim 17
Dependent Claim
24 words
The electromagnetic resonant vibrator of claim 14, wherein said planar circular spring members are arranged orthogonally around said central region within said perimeter region.
Claim 18
Dependent Claim
27 words
The electromagnetic resonant vibrator of claim 13, wherein said armature movement is normal to the direction of the restoring force provided by said planar circular spring members.
Claim 19
Dependent Claim
28 words
The electromagnetic resonant vibrator of claim 8, wherein said predetermined resonant frequency of said armature is tunable by adjusting the inside diameter of said planar circular spring members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-21 | 1995-10-21 | 1996-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-21 | 1999-10-21 | 2000-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-21 | 2003-10-21 | 2004-04-21 | $7700.00 | Window Closed / Lapsed |