Patent US4168003A successfully refreshed from Google Patents.
Patent US3581593A successfully refreshed from Google Patents.
US3581593A
Expired / Lapsed
US
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Gear vibration arrestor
Assignee: Motors Liquidation Co
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Filing: 1969-09-08
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Granted: 1971-06-01
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Expires: 1989-09-08
Abstract
Abstract A sound reduction or aborting device for a gear web having a conical annular spring having its outer perimeter continuously engaging in frictional contact with the side face of the web at the circle of anodic areas at or adjacent the pitch circle and a fastening pivotally contacting the central portion or inner perimeter of the annular conical spring providing a preselected preloading and a universal pivoting action so that deflection forces moving the spring in one direction at any point on the outer perimeter cause an opposite movement at the diametrically opposite point on the perimeter causing a distribution, dissipation and interference of vibrations for a reduction in deflection and to prevent resonance causing excessive sound.
Inventors
- 👤 Donovan L Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:55
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/06; F16H55/00; F16H55/02; F16H55/14; G; G10; G10K; G10K11/00; G10K11/16; G10K11/175; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19907
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
137 words
In gearing, a gear having a thin web portion and gear teeth having a contact portion for engaging other gear teeth resulting in gear impulses causing anodic areas of vibration in a ring gear adjacent the contact portion, an annular conical spring having an outer portion continuously engaging in frictional contact the side face of said web portion in a ring substantially coinciding with said ring of anodic areas and having an inner portion, and means on said gear engaging said inner portion of said conical spring for universal pivotal movement in order to transfer primary vibration forces from any one point on the outer perimeter of said annular conical spring to a diametrically opposite point to induce a different secondary vibration to dissipate, distribute and cause interference vibration to substantially reduce or abort gear web vibration.
Claim 2
Dependent Claim
137 words
In gearing, a gear having a thin web portion and gear teeth having a contact portion for engaging other gear teeth resulting in gear impulses causing anodic areas of vibration in a ring gear adjacent the contact portion, an annular conical spring having an outer portion continuously engaging in frictional contact the side face of said web portion in a ring substantially coinciding with said ring of anodic areas and having an inner portion, and means on said gear engaging said inner portion of said conical spring for universal pivotal movement in order to transfer primary vibration forces from any one point on the outer perimeter of said annular conical spring to a diametrically opposite point to induce a different secondary vibration to dissipate, distribute and cause interference vibration to substantially reduce or abort gear web vibration.
Claim 3
Dependent Claim
32 words
The invention defined in claim 1 and said fastening device providing a predetermined degree of preloading of said spring against said web to increase the resonant frequency above said gear impulse frequency.
Claim 4
Dependent Claim
39 words
The invention defined in claim 2 and said conical spring transferring said primary vibration diametrically to a larger area to induce reduced secondary vibrations so the vibrations meeting in the web and spring tend to substantially cancel each other.
Claim 5
Dependent Claim
24 words
The invention defined in claim 3 and said ring of anodic areas of vibration being close to and within the gear tooth root circle.
Claim 6
Dependent Claim
18 words
The invention defined in claim 4 and said preloading increasing said resonant frequency above the audible frequency range.
Claim 7
Dependent Claim
29 words
The invention defined in claim 1 and said gear teeth being wider than the meshing gear teeth and said conical spring engaging the side face of said gear teeth.
Claim 8
Dependent Claim
29 words
The invention defined in claim 5 and said gear teeth being wider than the meshing gear teeth and said conical spring engaging the side face of said gear teeth.
Claim 9
Dependent Claim
142 words
In gearing, a gear having a thin web portion and gear teeth subject to gear impulses causing anodic areas of vibration in a ring adjacent the gear teeth, an annular conical spring having an outer perimeter continuously engaging in frictional contact the side face of said web portion in a ring substantially coinciding with said ring of anodic areas, an inner perimeter and a central opening fastening means secured to said gear and extending through the central opening in said conical spring and having a head portion engaging the inner perimeter of said conical spring for universal pivotal movement in order to transfer vibration forces from any one point on the outer perimeter of said annular conical spring to an area diametrically opposite said any one point to dissipate, distribute and cause interference vibration to substantially reduce or abort gear web vibration.
Claim 10
Dependent Claim
142 words
In gearing, a gear having a thin web portion and gear teeth subject to gear impulses causing anodic areas of vibration in a ring adjacent the gear teeth, an annular conical spring having an outer perimeter continuously engaging in frictional contact the side face of said web portion in a ring substantially coinciding with said ring of anodic areas, an inner perimeter and a central opening fastening means secured to said gear and extending through the central opening in said conical spring and having a head portion engaging the inner perimeter of said conical spring for universal pivotal movement in order to transfer vibration forces from any one point on the outer perimeter of said annular conical spring to an area diametrically opposite said any one point to dissipate, distribute and cause interference vibration to substantially reduce or abort gear web vibration.
Claim 11
Dependent Claim
32 words
The invention defined in claim 8 and said fastening device providing a predetermined degree of preloading of said spring against said web to increase the resonant frequency above said gear impulse frequency.
Claim 12
Dependent Claim
39 words
The invention defined in claim 7 and said conical spring transferring said primary vibration diametrically to a larger area to induce reduced secondary vibrations so the vibrations meeting in the web and spring tend to substantially cancel each other.
Claim 13
Dependent Claim
24 words
The invention defined in claim 8 and said ring of anodic areas of vibration being close to and within the gear tooth root circle.
Claim 14
Dependent Claim
18 words
The invention defined in claim 9 and said preloading increasing said resonant frequency above the audible frequency range.
References Cited (Backward Citations)
US3326059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |