US3834248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque couple with structure borne noise isolation
Assignee: Milacron Inc
•
Filing: 1973-07-05
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Granted: 1974-09-10
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Expires: 1993-07-05
Abstract
Abstract An apparatus for the transmission of torque between two members of a machine which reduces the structure borne vibration and noise through the use of pressurized fluid at the interface of torque transmitting teeth.
Inventors
- 👤 C Caliri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:59
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/0006; F16D; F16D3/00; F16D3/02; F16D3/06; F16F; F16F15/00; F16F15/10; F16F15/16; F16F15/162; F16D1/00; F16D1/10; F16D2001/103; F16D2300/00; F16D2300/06; F16H57/04; F16H57/042; F16H57/0421; F16H57/0426; F16H57/043; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19907; Y10T74/19991
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
66 words
An improved torque coupling comprising: a. a shaft having a plurality of external spline teeth; b. a hub received on the shaft and having a bore containing internal spline tooth spaces; c. a fluid conduit system in one of said shaft and hub having ports to introduce fluid into the internal spline tooth spaces; and d. means to introduce fluid into the said fluid conduit system.
Claim 2
Dependent Claim
66 words
An improved torque coupling comprising: a. a shaft having a plurality of external spline teeth; b. a hub received on the shaft and having a bore containing internal spline tooth spaces; c. a fluid conduit system in one of said shaft and hub having ports to introduce fluid into the internal spline tooth spaces; and d. means to introduce fluid into the said fluid conduit system.
Claim 3
Dependent Claim
27 words
The torque coupling of claim 1, wherein said fluid conduit system is comprised of radial ports in said shaft, and a central axial port in said shaft.
Claim 4
Dependent Claim
31 words
The torque coupling of claim 2, wherein said shaft is rotatably mounted, and further wherein said means to introduce fluid into said fluid conduit system comprises a suitable rotary fluid coupling.
Claim 5
Dependent Claim
90 words
An improved machine tool torque coupling comprising: a. a rotatably mounted shaft with a plurality of radially extending external teeth; b. a hub received on the shaft and having a bore containing a plurality of radially extending internal tooth spaces conforming to said external teeth; c. a fluid conduit system in one of said shaft and hub to introduce fluid into said internal tooth spaces; d. a fluid source; and e. a rotary fluid coupling connecting between said source and conduit system, to introduce fluid into said fluid conduit system.
Claim 6
Dependent Claim
90 words
An improved machine tool torque coupling comprising: a. a rotatably mounted shaft with a plurality of radially extending external teeth; b. a hub received on the shaft and having a bore containing a plurality of radially extending internal tooth spaces conforming to said external teeth; c. a fluid conduit system in one of said shaft and hub to introduce fluid into said internal tooth spaces; d. a fluid source; and e. a rotary fluid coupling connecting between said source and conduit system, to introduce fluid into said fluid conduit system.
Claim 7
Dependent Claim
52 words
The torque coupling of claim 4, further comprising finite clearances between the inclusive surfaces of the said external teeth and the inclusive surfaces of the said intErnal tooth spaces, said finite clearances defining additional fluid passageways through which fluid from the fluid conduit system moves to provide a squeeze film damping medium.
References Cited (Backward Citations)
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 |