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US3605511A Expired / Lapsed US ⏱️ 0.0 years remaining

Self-cleaning centrifugal clutch

Assignee: First National Bank of Minneapolis
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Filing: 1969-10-24
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Granted: 1971-09-20
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Expires: 1989-10-24
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Abstract

Abstract THE BELT TO THE SHAFT, THEREBY KEEPING THE SHAFT CLEAN AND MAINTAINING PROPER OPERATION. A SELF-CLEANING CENTRIFUGAL CLUTCH IS DISCLOSED THAT CONSISTS OF DRIVING AND DRIVEN ASSEMBLIES OPERATIVELY CONNECTED BY AN ENDLESS RUBBER BELT. THE DRIVING ASSEMBLY INCLUDES A PAIR OF SHEAVES AFFIXED TO A ROTATABLE SHAFT, ONE OF THE SHEAVES BEING AXIALLY MOVABLE WITH RESPECT TO THE OTHER TO CONTROL RADIAL POSITION OF THE BELT ON THE SHEAVES AND THEREBY EFFECT A VARIABLE REVOLUTION RATIO BETWEEN THE DRIVING AND DRIVEN ASSEMBLIES. THAT PORTION OF THE SHAFT OVER WHICH THE MOVABLE SHEAVE RIDES IS FORMED WITH A PLURALITY OF CIRCUMFERENTIAL GROOVES WHICH PREVENT THE BUILDUP OF BURNED RUBBER TRANSFERRED FROM

Inventors

  • 👤 Clement F Deschene

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 10:30
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16H55/563; F16H61/00; F16H61/66; F16H61/662; F16H61/66231; F16H61/66245

Claims Analysis

Total Claims: 0
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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) 1974-09-19 1975-03-21 1975-09-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-09-19 1979-03-21 1979-09-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-09-19 1983-03-21 1983-09-20 $7700.00 Window Closed / Lapsed

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