US3727476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulley arrangement
Assignee: Motors Liquidation Co
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Filing: 1971-08-13
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Granted: 1973-04-17
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Expires: 1991-08-13
Abstract
Abstract The adjustable pulley or speed changer assembly illustrated includes a fixed and movable wall, with the fixed wall being connected at its outer edge to normally bowed resilient spoke members secured to the reciprocally movable shaft to which the movable pulley wall is also secured. As the belt is loaded up, it moves radially inwardly, forcing the movable wall away from the fixed wall, and thereby axially moving the shaft and straightening the normally bowed resilient spoke members, without any sliding fits being involved. As the load on the belt is relieved, the distorted spoke members cause the movable wall to return toward the fixed wall, progressively forcing the belt radially outwardly between the pulley walls. Centrifugal weights secured by flexible arms to the fixed wall abutment, in contact with the movable wall, serve to limit the separating movement of the latter at a predetermined speed.
Inventors
- 👤 J Heidorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:04
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/66; F16H61/662; F16H61/66231; F16H61/66245
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
137 words
A pulley arrangement comprising a pulley having an axially fixed pulley wall and an axially movable pulley wall, a reciprocally movable central shaft, a sleeve member loosely surrounding said central shaft, bearing means axially retaining and rotatably supporting said sleeve member, said movable pulley wall being secured at its inner periphery to said central shaft, and a plurality of spaced resilient spoke members secured at their radially inner ends to said central shaft, said fixed pulley wall being suspended at its outer periphery on the radially outer ends of said plurality of spaced resilient spoke members and secured at its inner end to said sleeve member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said movable wall and said central shaft relative to said sleeve member.
Claim 2
Dependent Claim
137 words
A pulley arrangement comprising a pulley having an axially fixed pulley wall and an axially movable pulley wall, a reciprocally movable central shaft, a sleeve member loosely surrounding said central shaft, bearing means axially retaining and rotatably supporting said sleeve member, said movable pulley wall being secured at its inner periphery to said central shaft, and a plurality of spaced resilient spoke members secured at their radially inner ends to said central shaft, said fixed pulley wall being suspended at its outer periphery on the radially outer ends of said plurality of spaced resilient spoke members and secured at its inner end to said sleeve member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said movable wall and said central shaft relative to said sleeve member.
Claim 3
Dependent Claim
179 words
A pulley arrangement comprising a pulley having an axially fixed pulley wall and an axially movable pulley wall, a reciprocally movable centRal shaft, a sleeve member loosely surrounding said central shaft, bearing means axially retaining and rotatably supporting said sleeve member, said movable pulley wall being secured at its inner periphery to one end of said central shaft, a plurality of spaced resilient spoke members secured at their radially inner ends to said central shaft, said fixed pulley wall being suspended at its outer periphery on the radially outer ends of said plurality of spaced resilient spoke members and secured at its inner end to one end of said sleeve member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said movable wall and said central shaft relative to said sleeve member, a retainer member secured to the other end of said sleeve member, and resilient means secured between said retainer member and the other end of said central shaft for supplementing the response of said resilient spoke members.
Claim 4
Dependent Claim
179 words
A pulley arrangement comprising a pulley having an axially fixed pulley wall and an axially movable pulley wall, a reciprocally movable centRal shaft, a sleeve member loosely surrounding said central shaft, bearing means axially retaining and rotatably supporting said sleeve member, said movable pulley wall being secured at its inner periphery to one end of said central shaft, a plurality of spaced resilient spoke members secured at their radially inner ends to said central shaft, said fixed pulley wall being suspended at its outer periphery on the radially outer ends of said plurality of spaced resilient spoke members and secured at its inner end to one end of said sleeve member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said movable wall and said central shaft relative to said sleeve member, a retainer member secured to the other end of said sleeve member, and resilient means secured between said retainer member and the other end of said central shaft for supplementing the response of said resilient spoke members.
Claim 5
Dependent Claim
198 words
A pulley arrangement comprising a pulley having an axially fixed pulley wall and an axially movable pulley wall, a reciprocally movable central shaft, a sleeve member loosely surrounding said central shaft, bearing means mounted around and rotatably supporting said sleeve member, said movable pulley wall being secured at its inner periphery to one end of said central shaft, a plurality of spaced resilient spoke members secured at their radially inner ends to said central shaft, said fixed pulley wall being suspended at its outer periphery on the radially outer ends of said plurality of spaced resilient spoke members and secured at its inner end to one end of said sleeve member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said movable wall and said central shaft relative to said sleeve member, a saucer-shaped retainer member having a central opening formed therethrough and secured at its inner periphery to the other end of said sleeve member, and an annularly corrugated resilient disc secured at its outer periphery to the outer periphery of said retainer member and at its central portion to the other end of said central shaft.
Claim 6
Dependent Claim
198 words
A pulley arrangement comprising a pulley having an axially fixed pulley wall and an axially movable pulley wall, a reciprocally movable central shaft, a sleeve member loosely surrounding said central shaft, bearing means mounted around and rotatably supporting said sleeve member, said movable pulley wall being secured at its inner periphery to one end of said central shaft, a plurality of spaced resilient spoke members secured at their radially inner ends to said central shaft, said fixed pulley wall being suspended at its outer periphery on the radially outer ends of said plurality of spaced resilient spoke members and secured at its inner end to one end of said sleeve member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said movable wall and said central shaft relative to said sleeve member, a saucer-shaped retainer member having a central opening formed therethrough and secured at its inner periphery to the other end of said sleeve member, and an annularly corrugated resilient disc secured at its outer periphery to the outer periphery of said retainer member and at its central portion to the other end of said central shaft.
Claim 7
Dependent Claim
204 words
A pulley arrangement comprising a pulley having an axially fixed pulley wall and an axially movable pulley wall, a reciprocally movable central shaft, a sleeve member loosely surrounding said central shaft, bearing means axially retaining and rotatably supporting said sleeve member, said movable pulley wall being secured at its inner periphery to said central shaft, and a plurality of spaced resilient spoke members secured at their radially inner ends to said central shaft, said fixed pulley wall being suspended at its outer periphery on the radially outer ends of said plurality of spaced resilient spoke members and secured at its inner end to said sleeve member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said movable wall and said central shaft relative to said sleeve member, a plurality of equally-spaced openings formed in said movable pulley wall, a plurality of resilient arms secured at one end thereof to said sleeve member and extending through said spaced openings, and a plurality of centrifugal weight members secured to the other ends of said resilient arms adjacent said movable pulley wall for limiting the separating movement of said movable pulley wall at a predetermined maximum speed.
Claim 8
Dependent Claim
204 words
A pulley arrangement comprising a pulley having an axially fixed pulley wall and an axially movable pulley wall, a reciprocally movable central shaft, a sleeve member loosely surrounding said central shaft, bearing means axially retaining and rotatably supporting said sleeve member, said movable pulley wall being secured at its inner periphery to said central shaft, and a plurality of spaced resilient spoke members secured at their radially inner ends to said central shaft, said fixed pulley wall being suspended at its outer periphery on the radially outer ends of said plurality of spaced resilient spoke members and secured at its inner end to said sleeve member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said movable wall and said central shaft relative to said sleeve member, a plurality of equally-spaced openings formed in said movable pulley wall, a plurality of resilient arms secured at one end thereof to said sleeve member and extending through said spaced openings, and a plurality of centrifugal weight members secured to the other ends of said resilient arms adjacent said movable pulley wall for limiting the separating movement of said movable pulley wall at a predetermined maximum speed.
Claim 9
Dependent Claim
198 words
A pulley arrangement comprising a belt, a pulley having an axially fixed pulley wall and an axially movable pulley wall, said belt being mounted therebetween, a reciprocally movable central shaft, a hub member having spaced longitudinal slots formed therein and mounted around and spaced apart from said central shaft, the ends of said central shaft extending beyond the ends of said hub member, an axially fixed bearing rotatably supporting said hub member, said movable pulley wall being secured at its inner periphery to one extended end of said central shaft, and a plurality of spaced resilient spoke members extending radially through said spaced longitudinal slots and secured at their radially inner ends to an intermediate point on said central shaft, said fixed pulley wall being secured at its outer periphery to the radially outer ends of said plurality of spaced resilient spoke members and at its inner periphery to said hub member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said central shaft through said spaced-apart surrounding hub member as caused by said belt moving radially along said fixed and movable pulley walls under variable load conditions.
Claim 10
Dependent Claim
198 words
A pulley arrangement comprising a belt, a pulley having an axially fixed pulley wall and an axially movable pulley wall, said belt being mounted therebetween, a reciprocally movable central shaft, a hub member having spaced longitudinal slots formed therein and mounted around and spaced apart from said central shaft, the ends of said central shaft extending beyond the ends of said hub member, an axially fixed bearing rotatably supporting said hub member, said movable pulley wall being secured at its inner periphery to one extended end of said central shaft, and a plurality of spaced resilient spoke members extending radially through said spaced longitudinal slots and secured at their radially inner ends to an intermediate point on said central shaft, said fixed pulley wall being secured at its outer periphery to the radially outer ends of said plurality of spaced resilient spoke members and at its inner periphery to said hub member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said central shaft through said spaced-apart surrounding hub member as caused by said belt moving radially along said fixed and movable pulley walls under variable load conditions.
Claim 11
Dependent Claim
320 words
A pulley arrangement comprising a belt, a pulley having an axially fixed pulley wall and an axially movable pulley wall, said belt being mounted therebetween, a reciprocally movable central shaft, a hub member having spaced longitudinal slots formed therein and mounted around and spaced apart from said central shaft, the ends of said central shaft extending beyond the ends of said hub member, an axially fixed bearing rotatably supporting said hub member, said movable pulley wall being secured at its inner periphery to one extended end of said central shaft, a plurality of spaced resilient spoke members extending radially through said spaced longitudinal slots and secured at their radially inner ends to an intermediate point on said central shaft, said fixed pulley wall being secured at its outer periphery to the radially outer ends of said plurality of spaced resilient spoke members and at its inner periphery to said hub member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said central shaft through said spaced-apart surrounding hub member as caused by said belt moving radially along said fixed and movable pulley walls under variable load conditions, a saucer-shaped retainer member having a central opening formed therethrough and secured at its inner periphery to the other end of said sleeve member, and an annularly corrugated resilient disc secured at its outer periphery to the outer periphery of said retainer member and at its central portion to the other end of said central shaft, a plurality of equally-spaced openings formed in said movable pulley wall, a plurality of resilient arms secured at one end thereof to said sleeve member and extending through said spaced openings, and a plurality of centrifugal weight members secured to the other ends of said resilient arms adjacent said movable pulley wall for limiting the separating movement of said movable pulley wall at a predetermined maximum speed.
Claim 12
Dependent Claim
320 words
A pulley arrangement comprising a belt, a pulley having an axially fixed pulley wall and an axially movable pulley wall, said belt being mounted therebetween, a reciprocally movable central shaft, a hub member having spaced longitudinal slots formed therein and mounted around and spaced apart from said central shaft, the ends of said central shaft extending beyond the ends of said hub member, an axially fixed bearing rotatably supporting said hub member, said movable pulley wall being secured at its inner periphery to one extended end of said central shaft, a plurality of spaced resilient spoke members extending radially through said spaced longitudinal slots and secured at their radially inner ends to an intermediate point on said central shaft, said fixed pulley wall being secured at its outer periphery to the radially outer ends of said plurality of spaced resilient spoke members and at its inner periphery to said hub member, said resilient spoke members being distorted radially inwardly of said outer ends thereof in response to axial movement of said central shaft through said spaced-apart surrounding hub member as caused by said belt moving radially along said fixed and movable pulley walls under variable load conditions, a saucer-shaped retainer member having a central opening formed therethrough and secured at its inner periphery to the other end of said sleeve member, and an annularly corrugated resilient disc secured at its outer periphery to the outer periphery of said retainer member and at its central portion to the other end of said central shaft, a plurality of equally-spaced openings formed in said movable pulley wall, a plurality of resilient arms secured at one end thereof to said sleeve member and extending through said spaced openings, and a plurality of centrifugal weight members secured to the other ends of said resilient arms adjacent said movable pulley wall for limiting the separating movement of said movable pulley wall at a predetermined maximum speed.
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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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |