US5379032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse transducer enunciator
Assignee: CTS Corp
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Filing: 1992-11-02
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Granted: 1995-01-03
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Expires: 2012-11-02
Abstract
Abstract An impulse transducer that does not use eccentric, motor-driven weights is constructed of a permanent magnet movable armature that oscillates within a housing and impacts resilient bumpers to produce vibrations. The armature is accelerated by a varying magnetic field energized by an alternating current. The dimensions of the enclosed housing and the mass of the movable armature as well as the strength of the magnetic fields can be optimized for the impulse magnitude that is desired.
Inventors
- 👤 Jewett E. Foster
- 👤 Theodore Lind
- 👤 Charles W. Mooney
- 👤 Irving H. Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:48
CPC Classifications
H; H04; H04M; H04M19/00; H04M19/02; H04M19/04; G; G08; G08B; G08B6/00
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
97 words
An impulse transducer comprised: a housing having an enclosed substantially cylindrical volume, said enclosed volume having first and second ends; a movable armature comprised of at least one permanent magnet having a mass, said armature being substantially free to move within said enclosed volume; a first and a second resilient bumper in said enclosed volume and contactable with said first and said second ends, respectively; a coil structure for inducing a magnetic field substantially throughout said housing, located substantially between said first and said second ends of said enclosed volume and substantially adjacent to said cylindrical housing.
Claim 2
Dependent Claim
97 words
An impulse transducer comprised: a housing having an enclosed substantially cylindrical volume, said enclosed volume having first and second ends; a movable armature comprised of at least one permanent magnet having a mass, said armature being substantially free to move within said enclosed volume; a first and a second resilient bumper in said enclosed volume and contactable with said first and said second ends, respectively; a coil structure for inducing a magnetic field substantially throughout said housing, located substantially between said first and said second ends of said enclosed volume and substantially adjacent to said cylindrical housing.
Claim 3
Dependent Claim
23 words
The impulse transducer of claim 1 where said first resilient bumper is located at and coupled to a first end of said housing.
Claim 4
Dependent Claim
23 words
The impulse transducer of claim 1 where said second resilient bumper is located at and coupled to a second end of said housing.
Claim 5
Dependent Claim
16 words
The impulse transducer of claim 1 where said first resilient bumper is coupled to said armature.
Claim 6
Dependent Claim
16 words
The impulse transducer of claim 1 where said second resilient bumper is coupled to said armature.
Claim 7
Dependent Claim
15 words
The impulse transducer of claim 1 including an additional mass coupled to the permanent magnet.
Claim 8
Dependent Claim
19 words
The impulse transducer of claim 1 wherein said permanent magnet is comprised of at least one individual permanent magnet.
Claim 9
Dependent Claim
17 words
The impulse transducer of claim 1 wherein the coil structure is wound substantially around said cylindrical housing.
Claim 10
Dependent Claim
17 words
The impulse transducer of claim 1 wherein the coil structure is wound substantially within said cylindrical housing.
Claim 11
Dependent Claim
24 words
The impulse transducer of claim 1 wherein the housing is made of a material sufficient to allow a magnetic field to permeate through it.
Claim 12
Dependent Claim
26 words
The impulse transducer of claim 1 wherein the first and second bumpers are comprised of a compliant material having a durometer substantially between 20 and 100.
Claim 13
Dependent Claim
31 words
The impulse transducer of claim 1 further comprised of a spring coupled to one side of said movable armature and to at least one of said first and second resilient bumpers.
Claim 14
Dependent Claim
18 words
The impulse transducer of claim 1 wherein said at least one permanent magnet is comprised of samarium cobalt.
Claim 15
Dependent Claim
17 words
The impulse transducer of claim 1 wherein said at least one permanent magnet is comprised of neodynium.
Claim 16
Dependent Claim
19 words
The impulse transducer of claim 1 wherein said at least one permanent magnet is comprised of an alnico alloy.
Claim 17
Dependent Claim
147 words
A radio communications device comprising: radio signal detector means for receiving radio signals; message detector means, coupled to said radio signal detector means, for detecting an addressed message within said radio signals; an impulse transducer announcing receipt of a message comprised of: a housing having an enclosed substantially cylindrical volume, said enclosed volume having first and second ends; a movable armature comprised of at least one permanent magnet having a mass, said armature being substantially free to move within said enclosed volume; a first resilient bumper located at a first end of said housing and a second resilient bumper located at a second end of said housing, both bumpers being in said enclosed volume; and a coil structure for inducing a magnetic field substantially throughout said housing, located substantially between said first and said second ends of said enclosed volume and substantially adjacent to said enclosed volume.
Claim 18
Dependent Claim
147 words
A radio communications device comprising: radio signal detector means for receiving radio signals; message detector means, coupled to said radio signal detector means, for detecting an addressed message within said radio signals; an impulse transducer announcing receipt of a message comprised of: a housing having an enclosed substantially cylindrical volume, said enclosed volume having first and second ends; a movable armature comprised of at least one permanent magnet having a mass, said armature being substantially free to move within said enclosed volume; a first resilient bumper located at a first end of said housing and a second resilient bumper located at a second end of said housing, both bumpers being in said enclosed volume; and a coil structure for inducing a magnetic field substantially throughout said housing, located substantially between said first and said second ends of said enclosed volume and substantially adjacent to said enclosed volume.
Claim 19
Dependent Claim
18 words
The impulse transducer of claim 16 including an additional weight coupled to the at least one permanent magnet.
Claim 20
Dependent Claim
22 words
The impulse transducer of claim 16 wherein said at least one permanent magnet is comprised of at least one individual permanent magnet.
Claim 21
Dependent Claim
19 words
The impulse transducer of claim 16 wherein the coil structure is wound substantially around the exterior of said housing.
Claim 22
Dependent Claim
16 words
The impulse transducer of claim 16 wherein the coil structure is wound substantially within said housing.
Claim 23
Dependent Claim
22 words
The impulse transducer of claim 16 wherein the housing comprises a material sufficient to allow a magnetic field to permeate through it.
Claim 24
Dependent Claim
26 words
The impulse transducer of claim 16 wherein the first and second bumpers are comprised of a compliant material having a durometer substantially between 20 and 100.
Claim 25
Dependent Claim
31 words
The impulse transducer of claim 16 further comprised of a spring coupled to one side of said movable armature and to at least one of said first and second resilient bumpers.
Claim 26
Dependent Claim
18 words
The impulse transducer of claim 16 wherein said at least one permanent magnet is comprised of samarium cobalt.
Claim 27
Dependent Claim
17 words
The impulse transducer of claim 16 wherein said at least one permanent magnet is comprised of neodynium.
Claim 28
Dependent Claim
19 words
The impulse transducer of claim 16 wherein said at least one permanent magnet is comprised of an alnico alloy.
Claim 29
Dependent Claim
146 words
A radio communications device comprising: radio signal detector receiving radio signals; message detector coupled to said radio signal detector means, detecting an addressed message within said radio signals; an impulse transducer announcing receipt of a message comprised of: a housing having an enclosed substantially cylindrical volume, said enclosed volume having first and second ends; a movable armature comprised of at least one permanent magnet having a mass, said armature being substantially free to move within said enclosed volume; a first resilient bumper located at a first end of said housing; a second resilient bumper located a first distance from said first resilient bumper at a second end of said housing; magnetic field means comprising a coil structure for inducing a magnetic field substantially throughout said housing, located substantially between said first and said second ends of said enclosed volume and substantially adjacent to said enclosed volume.
Claim 30
Dependent Claim
146 words
A radio communications device comprising: radio signal detector receiving radio signals; message detector coupled to said radio signal detector means, detecting an addressed message within said radio signals; an impulse transducer announcing receipt of a message comprised of: a housing having an enclosed substantially cylindrical volume, said enclosed volume having first and second ends; a movable armature comprised of at least one permanent magnet having a mass, said armature being substantially free to move within said enclosed volume; a first resilient bumper located at a first end of said housing; a second resilient bumper located a first distance from said first resilient bumper at a second end of said housing; magnetic field means comprising a coil structure for inducing a magnetic field substantially throughout said housing, located substantially between said first and said second ends of said enclosed volume and substantially adjacent to said enclosed volume.
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) | 1998-01-02 | 1998-07-04 | 1999-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-02 | 2002-07-04 | 2003-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-02 | 2006-07-04 | 2007-01-03 | $7700.00 | Window Closed / Lapsed |