Patent US3889554A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3889554A Expired / Lapsed US ⏱️ 0.0 years remaining

Roller transmission

Assignee: Individual
•
Filing: 1974-01-09
•
Granted: 1975-06-17
•
Expires: 1994-01-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A transmission has an input shaft, a fixed ring, a rotatably mounted driven ring, one ring being smaller than the other by a given amount, at least one roller having longitudinally displaced portions, one portion being smaller than the other by the same amount as the rings, and means enabling the input shaft to revolve the at least one roller within the rings with the smaller diameter portion rolling in the smaller ring and the larger diameter portion rolling with the larger ring to drive the rotatably mounted ring as an output. Modifications of the transmission provide conical rollers and corresponding conical rings, rollers and rings having surfaces which provide point contact therebetween, and a plurality of longitudinally displaced portions of rollers with a plurality of driven output rings.

Inventors

  • 👤 Brett Jason Sinclair
  • 👤 Harold Youngelson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 12:33
CPC Classifications
F; F16; F16H; F16H13/00; F16H13/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 170 words
A roller transmission comprising, in combination, an input shaft, a fixed ring disposed about said shaft, a rotatably mounted ring disposed about said shaft, said rings having larger and smaller cylindrical inner surfaces, rollers each having larger and smaller cylindrical portions, said larger and smaller cylindrical portions of said rollers differing in diameter the same amount as the larger and smaller cylindrical inner surfaces of said rings, and a spider mounted on said shaft, said spider having pairs of arms containing radial slots receiving said axles, each pair of said arms mounting one of said rollers therebetween, said spider revolving said rollers with said shaft so that on rotation of said shaft centrifugal force urges said rollers outward moving said axles in said slots, said larger cylindrical portion of each roller rolling against said larger cylindrical inner surface of a ring and said smaller cylindrical portion of each roller rolling against said smaller cylindrical inner surface of a ring driving said rotatably mounted ring as an output of said transmission.
Claim 2
Dependent Claim 170 words
A roller transmission comprising, in combination, an input shaft, a fixed ring disposed about said shaft, a rotatably mounted ring disposed about said shaft, said rings having larger and smaller cylindrical inner surfaces, rollers each having larger and smaller cylindrical portions, said larger and smaller cylindrical portions of said rollers differing in diameter the same amount as the larger and smaller cylindrical inner surfaces of said rings, and a spider mounted on said shaft, said spider having pairs of arms containing radial slots receiving said axles, each pair of said arms mounting one of said rollers therebetween, said spider revolving said rollers with said shaft so that on rotation of said shaft centrifugal force urges said rollers outward moving said axles in said slots, said larger cylindrical portion of each roller rolling against said larger cylindrical inner surface of a ring and said smaller cylindrical portion of each roller rolling against said smaller cylindrical inner surface of a ring driving said rotatably mounted ring as an output of said transmission.

References Cited (Backward Citations)

US70122A Cited
US1432090A Cited
US1993051A Cited
US2293407A Cited
US2896480A Cited
US3453907A Cited
US3677109A Cited
US3705522A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-06-16 1978-12-16 1979-06-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-06-16 1982-12-16 1983-06-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-06-16 1986-12-16 1987-06-17 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag