Patent US3631953A successfully refreshed from Google Patents.
US3631953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction plate clutch having means to dampen plate flutter
Assignee: Twin Disc Inc
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Filing: 1970-10-23
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Granted: 1972-01-04
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Expires: 1990-10-23
Abstract
Abstract A friction plate-type clutch having interleaved clutch plates that can be axially clamped up to cause clutch engagement, or alternatively can be released by causing their axial separation. Resilient means are provided between the radially inner set of clutch plates, which means act to cause the radially inner set of plates into a mode of flutter, which flutter can then be damped by split-type outer clutch plates.
Inventors
- 👤 Joseph B Snoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:40
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/68; F16D13/683; F16D13/69; F16D21/00; F16D21/02; F16D21/04; F16D2300/00; F16D2300/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
A friction type clutch having an outer member and An inner hub, interleaved outer plates and inner plates axially slideable on but rotationally fixed on said outer member and hub respectively; said outer plates being of the split type, said inner plates having a series of internal spline teeth for sliding engagement on the complementary splines of said hub, and a resilient separator located between two adjacent teeth of said inner plates to hold all inner plates together and cause them to go into a mode of flutter that can can be damped by said outer split plates, said separator being compressible to permit clamp up of said interleaved plates.
Claim 2
Dependent Claim
110 words
A friction type clutch having an outer member and An inner hub, interleaved outer plates and inner plates axially slideable on but rotationally fixed on said outer member and hub respectively; said outer plates being of the split type, said inner plates having a series of internal spline teeth for sliding engagement on the complementary splines of said hub, and a resilient separator located between two adjacent teeth of said inner plates to hold all inner plates together and cause them to go into a mode of flutter that can can be damped by said outer split plates, said separator being compressible to permit clamp up of said interleaved plates.
Claim 3
Dependent Claim
135 words
A friction type clutch having a radially outer member and a radially inner hub, interleaved outer plates and inner plates axially slideable on but rotationally fixed on said outer member and inner hub, respectively; said outer plates being of the split type, said inner plates having a series of internal spline teeth for sliding engagement on complementary splines of said hub, and an inner plate separator having a series of teeth along two sides thereof and located between two adjacent teeth of said inner plates, said separator being made of the resilient material, whereby said separator acts to hold all inner plates together and causes them to go into a mode of flutter that can be damped by said outer split plates, said separator teeth being compressible to permit clamp up of said interleaved plates.
Claim 4
Dependent Claim
135 words
A friction type clutch having a radially outer member and a radially inner hub, interleaved outer plates and inner plates axially slideable on but rotationally fixed on said outer member and inner hub, respectively; said outer plates being of the split type, said inner plates having a series of internal spline teeth for sliding engagement on complementary splines of said hub, and an inner plate separator having a series of teeth along two sides thereof and located between two adjacent teeth of said inner plates, said separator being made of the resilient material, whereby said separator acts to hold all inner plates together and causes them to go into a mode of flutter that can be damped by said outer split plates, said separator teeth being compressible to permit clamp up of said interleaved plates.
Claim 5
Dependent Claim
151 words
A friction type clutch having an outer member and an inner hub, said outer member having internal splines, said hub having external splines along its length, outer plates having external splines for axially sliding on the inner splines of said outer member, said outer plates being of the split type, inner plates having a series of internal spline teeth for driving and sliding engagement on said hub splines, and an inner plate separator located between two splines on said hub, said separator having a series of teeth along two sides thereof which are located between two adjacent teeth of said inner plates, said separator being made of resilient material, whereby said separator acts to hold all inner plates together and causes them to go into a mode of flutter than can be damped by said outer split plates, said separator teeth being compressible to permit clamp up of said interleaved plates.
Claim 6
Dependent Claim
151 words
A friction type clutch having an outer member and an inner hub, said outer member having internal splines, said hub having external splines along its length, outer plates having external splines for axially sliding on the inner splines of said outer member, said outer plates being of the split type, inner plates having a series of internal spline teeth for driving and sliding engagement on said hub splines, and an inner plate separator located between two splines on said hub, said separator having a series of teeth along two sides thereof which are located between two adjacent teeth of said inner plates, said separator being made of resilient material, whereby said separator acts to hold all inner plates together and causes them to go into a mode of flutter than can be damped by said outer split plates, said separator teeth being compressible to permit clamp up of said interleaved plates.
References Cited (Backward Citations)
US3245508A
Cited
US3446323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |