Patent US3799309A successfully refreshed from Google Patents.
US3799309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch driven member assembly with vibration damper
Assignee: Borg Warner Corp
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Filing: 1972-07-10
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Granted: 1974-03-26
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Expires: 1992-07-10
Abstract
Abstract A clutch driven member assembly of the damper type including a hub, a single formed drive plate, a plurality of damper springs, and a friction surface supporting means, the hub including radially directed lugs which frictionally engage the supporting means. The drive plate is secured to the supporting means and frictionally engages the hub. The springs are disposed in notches formed in the hub and pockets formed in the drive plate, and serve to resiliently transmit torque between the hub and the drive plate and supporting means.
Inventors
- 👤 L Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:08
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/12; F16F15/121; F16F15/123; F16F15/12313; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/644; F16F15/129; F16F15/1295
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
224 words
A clutch driven member assembly comprising in combination a hub member including connecting means defined by said hub member adapted to connect said hub member to an output, an integral web portion extending from said connecting means, a plurality of lugs extending radially outwardly from said web portion, a plurality of notches defined in said hub member; friction surface supporting means adapted to be attached to friction material on each side thereof; a formed drive plate attached to said supporting means and overlying said hub member such that said lugs of said hub member are pressed against said supporting means in frictional engagement therewith to provide a friction damping force between said hub and said supporting means, a plurality of spring pockets formed in said drive plate and adapted to be aligned with the notches in said hub member, a plurality of damper springs disposed in said notches and in said spring pockets and adapted to transmit torque between said hub member and said drive plate, and a plurality of upturned fingers integral with and substantially perpendicular to the plane of said hub member, said fingers being located at the opposite ends of each notch to contact the ends of said springs, said drive plate frictionally engaging said hub member to provide a friction damping force between said hub member and said drive plate.
Claim 2
Dependent Claim
224 words
A clutch driven member assembly comprising in combination a hub member including connecting means defined by said hub member adapted to connect said hub member to an output, an integral web portion extending from said connecting means, a plurality of lugs extending radially outwardly from said web portion, a plurality of notches defined in said hub member; friction surface supporting means adapted to be attached to friction material on each side thereof; a formed drive plate attached to said supporting means and overlying said hub member such that said lugs of said hub member are pressed against said supporting means in frictional engagement therewith to provide a friction damping force between said hub and said supporting means, a plurality of spring pockets formed in said drive plate and adapted to be aligned with the notches in said hub member, a plurality of damper springs disposed in said notches and in said spring pockets and adapted to transmit torque between said hub member and said drive plate, and a plurality of upturned fingers integral with and substantially perpendicular to the plane of said hub member, said fingers being located at the opposite ends of each notch to contact the ends of said springs, said drive plate frictionally engaging said hub member to provide a friction damping force between said hub member and said drive plate.
Claim 3
Dependent Claim
65 words
A clutch driven member assembly as in claim 1 in which said drive plate includes an annular rib forming a channel therein connecting said spring pockets and receiving said upturned fingers and a plurality of raised channel sections adapted to overlie said lugs, the sides of said channel sections defining stops to limit the rotation of said hub member with respect to said drive plate.
Claim 4
Dependent Claim
64 words
A clutch driven member assembly as in claim 2 in which said friction surface supporting means includes an annular integral ring and a plurality of circumferentially spaced radially extending spring cushions, and means defined between said hub member and said friction surface supporting means to vary the friction damping force between said hub member and said friction surface supporting means with relative rotation therebetween.
Claim 5
Dependent Claim
45 words
A clutch driven member assembly as in claim 3 in which said ring adjacent each lug is bowed outwardly away from the lug so that the friction damping force increases as the relative rotation between said hub member and said friction surface supporting means increases.
Claim 6
Dependent Claim
44 words
A clutch driven member assembly as in claim 3 in which said ring adjacent each lug is bowed inwardly towards the lug so that the friction damping force decreases as the relative rotation between said hub member and said friction surface supporting means increases.
Claim 7
Dependent Claim
31 words
A clutch driven member assembly as in claim 3 in which said frictional engagement between said lugs and said friction surface supporting means takes place radially outwardly of said damper springs.
Claim 8
Dependent Claim
32 words
A clutch driven member assembly as in claim 2 in which said friction surface supporting means includes a plurality of discrete cushion segments each of which are attached to said drive plate.
References Cited (Backward Citations)
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |