US4596158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuned gyroscope with dynamic absorber
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1983-01-05
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Granted: 1986-06-24
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Expires: 2003-01-05
Abstract
Abstract A tuned gyroscope incorporates a dynamic absorber for lessening the transmissibility of resonant vibrations. A damping mass is symmetrical about a rotating element of the gyroscope. A symmetrical arrangement of elastomeric material is utilized to mount the mass to such rotating element. The mass and elastomeric material are so chosen with respect to geometry and material composition that out-of-phase vibrations are induced within the damping apparatus upon the onset of resonant vibrations to minimize the transmissibility of such vibrations with respect to the elements of the tuned gyroscope.
Inventors
- 👤 Michael Strugach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/16; G01C19/22; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1257; Y10T74/1293; Y10T74/21; Y10T74/2121; Y10T74/2131
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
46 words
A tuned gyroscope comprising, in combination: (a) a flexibly mounted rotor; (b) a reactive mass, said mass being substantially symmetrical about the spin axis of said rotor; and (c) means mounting said mass for rotation with said rotor, said means including at least one elastomeric body.
Claim 2
Dependent Claim
46 words
A tuned gyroscope comprising, in combination: (a) a flexibly mounted rotor; (b) a reactive mass, said mass being substantially symmetrical about the spin axis of said rotor; and (c) means mounting said mass for rotation with said rotor, said means including at least one elastomeric body.
Claim 3
Dependent Claim
19 words
A tuned gyroscope as defined in claim 1 wherein said mass is fixed to the rotor of said gyroscope.
Claim 4
Dependent Claim
19 words
A tuned gyroscope as defined in claim 1 wherein said mass is fixed to the shaft of said gyroscope.
Claim 5
Dependent Claim
20 words
A tuned gyroscope as defined in claim 1 wherein said mass is fixed to the rotor stop of said gyroscope.
Claim 6
Dependent Claim
18 words
A tuned gyroscope as defined in claim 1 additionally characterized in that said reactive mass is ring shaped.
Claim 7
Dependent Claim
22 words
A tuned gyroscope as defined in claim 5 further including elastomeric material adjacent the inner edge of said ring shaped reactive mass.
Claim 8
Dependent Claim
37 words
A tuned gyroscope as defined in claim 6 wherein said elastomeric material is arranged so that said ring shaped reactive mass is fixed to and axially disposed with respect to the rotor stop of said tuned gyroscope.
Claim 9
Dependent Claim
61 words
An absorber for reducing the transmissibility of resonant vibrations in a tuned gyroscope of the type that includes a flexibly-mounted rotor, said absorber comprising in combination: (a) a reactive mass, said mass being substantially symmetrical about the spin axis of said rotor; and (b) mean mounting said mass for rotation with said rotor, said mass inclduing at least one elastomeric body.
Claim 10
Dependent Claim
61 words
An absorber for reducing the transmissibility of resonant vibrations in a tuned gyroscope of the type that includes a flexibly-mounted rotor, said absorber comprising in combination: (a) a reactive mass, said mass being substantially symmetrical about the spin axis of said rotor; and (b) mean mounting said mass for rotation with said rotor, said mass inclduing at least one elastomeric body.
Claim 11
Dependent Claim
16 words
An absorber as defined in claim 1 wherein said mass is the rotor of said gyroscope.
Claim 12
Dependent Claim
18 words
An absorber as defined in claim 1 wherein said mass is fixed to the shaft of said gyroscope.
Claim 13
Dependent Claim
19 words
An absorber as defined in claim 1 wherein said mass is fixed to the rotor stop of said gyroscope.
Claim 14
Dependent Claim
17 words
An absorber as defined in claim 1 additionally characterized in that said reactive mass is ring shaped.
Claim 15
Dependent Claim
21 words
An absorber as defined in claim 13 further including elastomeric material adjacent the inner edge of said ring shaped reactive mass.
Claim 16
Dependent Claim
36 words
An absorber as defined in claim 13 wherein said elastomeric material is arranged so that said ring shaped reactive mass is fixed to and axially disposed with respect to the rotor stop of said tuned gyroscope.
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) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |