Patent US1267634A successfully refreshed from Google Patents.
Patent US3834182A successfully refreshed from Google Patents.
US3834182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating ring coupler
Assignee: RIGGERS Manufacturing Co
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Filing: 1973-01-22
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Granted: 1974-09-10
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Expires: 1993-01-22
Abstract
Abstract A flexible coupler for connecting nominally coaxial shafts drivingly connected to one another, permitting a limited amount of angular and radial misalignment between the shafts to be accommodated in the coupler. The coupler comprises three basic elements. First in an enlarged cylindrical hub fixed to one shaft. Second is a smaller cylindrical flange fixed to the other shaft in juxtaposition to the hub. Third is a ''''floating'''' annular ring also juxtaposed with the hub about the flange. Loose fitting complementary axial lugs and notches interconnect the hub and ring. Loose fitting complementary radial lugs and notches are interfitted between the ring and flange. the flange and ring are located relative to the hub for axial clearance, permitting limited angular misalignment between the two shafts. The flange and circumjacent coupler ring form a planar surface juxtaposed with the inner planar surface of the hub to form a longitudinally compact and rugged flexible drive coupler.
Inventors
- 👤 W Trask
- 👤 J Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:57
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/18; F16D3/185; F16D3/50; F16D3/78; F16D3/79
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
327 words
A flexible coupling for low-speed, high torque installations between aligned shafts that are nominally coaxial, but wherein limited radial and angular misalignment of the respective axes of the shafts may occur, comprising: a cylindrical hub having a central hub axis; said hub having a plane inner face perpendicular to said hub axis and extending to a circular periphery formed at a first radius about said hub axis; first shaft means fixed coaxially to the hub for rotation therewith; a cylindrical flange having a central flange axis normally coaxial with said hub axis; said flange having an inner face perpendicular to said flange axis and extending to a circular periphery formed at a second radius about said flange axis, said second radius being less than said first radius; said flange and hub being located along said axes with the respective inner faces thereof facing one another in closely adjacent positions; second shaft means fixed coaxially to the flange for rotation therewith; an annular ring circumjacent to the flange; said annular ring having a plane inner face extending between an inner cylindrical surface having a radius slightly greater than said second radius and a coaxial outer cylindrical surface; means operatively engageable with the ring for locating said ring about said flange in a substantially coaxial relationship and for permitting limited axial and radial movement of the ring relative to the hub and flange, the inner face of said ring being normally co-planar with the inner face of the flange; a set of complementary loosely-interfitting lugs and notches formed axially between the inner face of the hub and the inner face of the ring; a set of complementary loosely-interfitting lugs formed radially between the circular periphery of the flange and the inner cylindrical surface of the ring; whereby rotational movement of one shaft is transmitted to the other shaft through the flange, ring and hub, the looselyinterfitting lugs and notches, permitting limited radial and angular misalignment between the respective shafts.
Claim 2
Dependent Claim
327 words
A flexible coupling for low-speed, high torque installations between aligned shafts that are nominally coaxial, but wherein limited radial and angular misalignment of the respective axes of the shafts may occur, comprising: a cylindrical hub having a central hub axis; said hub having a plane inner face perpendicular to said hub axis and extending to a circular periphery formed at a first radius about said hub axis; first shaft means fixed coaxially to the hub for rotation therewith; a cylindrical flange having a central flange axis normally coaxial with said hub axis; said flange having an inner face perpendicular to said flange axis and extending to a circular periphery formed at a second radius about said flange axis, said second radius being less than said first radius; said flange and hub being located along said axes with the respective inner faces thereof facing one another in closely adjacent positions; second shaft means fixed coaxially to the flange for rotation therewith; an annular ring circumjacent to the flange; said annular ring having a plane inner face extending between an inner cylindrical surface having a radius slightly greater than said second radius and a coaxial outer cylindrical surface; means operatively engageable with the ring for locating said ring about said flange in a substantially coaxial relationship and for permitting limited axial and radial movement of the ring relative to the hub and flange, the inner face of said ring being normally co-planar with the inner face of the flange; a set of complementary loosely-interfitting lugs and notches formed axially between the inner face of the hub and the inner face of the ring; a set of complementary loosely-interfitting lugs formed radially between the circular periphery of the flange and the inner cylindrical surface of the ring; whereby rotational movement of one shaft is transmitted to the other shaft through the flange, ring and hub, the looselyinterfitting lugs and notches, permitting limited radial and angular misalignment between the respective shafts.
Claim 3
Dependent Claim
77 words
The coupling as set out in claim 1 wherein the annular ring further comprises an outside circular surface parallel to and axially spaced from its inside circular surface, the lugs and notches loosely interfitting between the hub and ring comprising angularly spaced lugs integral with the hub and projecting beyond the plane inner face of the hub a distance slightly greater than the axial separation between the inner cylindrical surface and outer cylindrical surface of the ring.
Claim 4
Dependent Claim
239 words
A flexible coupling for use between a circular hub fixed coaxially to a first shaft and a flange fixed coaxiallly to a second shaft, said first and second shafts being nominally coaxial and jourNalled in such manner that misalignment between the hub and flange axes may occur, comprising: a first plane hub surface formed across one axial end of the hub; a plurality of lugs extending axially outward from the hub beyond said first plane hub surface to a common second plane lug surface, said axial lugs being arranged annularly about the hub axis; said flange being encircled by said lugs and having a first plane flange surface facing and closely adjacent to said first plane hub surface and an axially spaced second plane flange surface substantially co-planar with said second plane lug surface; a plurality of lugs formed about said flange and extending radially outward from the periphery thereof; an annular ring loosely circumjacent to said flange; said ring having a first plane ring surface normally co-planar to said first plane flange surface and a second axially-spaced plane ring surface normally co-planar to said second plane flange surface; said ring having axial notches formed therethrough along its outside periphery, each notch being in loosely-interfitting engagement by one of said axial lugs; said ring also having radial notches formed along its inside periphery, each radial notch being in loosely-interfitting engagement by one of said radial lugs of said flange.
Claim 5
Dependent Claim
239 words
A flexible coupling for use between a circular hub fixed coaxially to a first shaft and a flange fixed coaxiallly to a second shaft, said first and second shafts being nominally coaxial and jourNalled in such manner that misalignment between the hub and flange axes may occur, comprising: a first plane hub surface formed across one axial end of the hub; a plurality of lugs extending axially outward from the hub beyond said first plane hub surface to a common second plane lug surface, said axial lugs being arranged annularly about the hub axis; said flange being encircled by said lugs and having a first plane flange surface facing and closely adjacent to said first plane hub surface and an axially spaced second plane flange surface substantially co-planar with said second plane lug surface; a plurality of lugs formed about said flange and extending radially outward from the periphery thereof; an annular ring loosely circumjacent to said flange; said ring having a first plane ring surface normally co-planar to said first plane flange surface and a second axially-spaced plane ring surface normally co-planar to said second plane flange surface; said ring having axial notches formed therethrough along its outside periphery, each notch being in loosely-interfitting engagement by one of said axial lugs; said ring also having radial notches formed along its inside periphery, each radial notch being in loosely-interfitting engagement by one of said radial lugs of said flange.
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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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |