US3678708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible couplings
Assignee: Maschinenfabrik Stromag GmbH
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Filing: 1971-04-22
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Granted: 1972-07-25
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Expires: 1991-04-22
Abstract
Abstract A flexible coupling including a first coupling member, a second coupling member and a flexible torque-transmitting member for transmitting torques from one of the coupling members to the other. The flexible torque-transmitting member is provided with impeller-like surface elements to establish a flow of ambient air cooling the coupling when rotating.
Inventors
- 👤 Lothar Ernst
- 👤 Werner Ruggen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:25
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/76; F16D2300/00; F16D2300/02; F16D2300/021; F16D2300/0212
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
90 words
A flexible coupling including a. a first coupling member; b. a second coupling member; and c. a flexible torque-transmitting member affixed at one side thereof to said first coupling member and affixed at another side thereof to said second coupling member to transmit torques from said first coupling member to said second coupling member, and said torque-transmitting member including impeller-like surface elements converting rotary motions of said impellerlike surface elements into a flow of ambient air along the surface of said torque-transmitting member in order to cool said torque-transmitting member.
Claim 2
Dependent Claim
90 words
A flexible coupling including a. a first coupling member; b. a second coupling member; and c. a flexible torque-transmitting member affixed at one side thereof to said first coupling member and affixed at another side thereof to said second coupling member to transmit torques from said first coupling member to said second coupling member, and said torque-transmitting member including impeller-like surface elements converting rotary motions of said impellerlike surface elements into a flow of ambient air along the surface of said torque-transmitting member in order to cool said torque-transmitting member.
Claim 3
Dependent Claim
40 words
A flexible coupling as specified in claim 1 wherein said first coupling member and said second coupling member are substantially in the shape of coaxial rings of different diameter and wherein portions of said torque-transmitting member have a blower-like configuration.
Claim 4
Dependent Claim
39 words
A fusible coupling as specified in claim 2 wherein said co-axial rings define air passageways for establishing an air flow directed from the axially inner of said rings along said torque-transmitting member to the axially outer of said rings.
Claim 5
Dependent Claim
23 words
A flexible coupling as specified in claim 2 wherein said portions of said torque-transmitting member have the configuration of a radial blower rotor.
Claim 6
Dependent Claim
77 words
A flexible coupling as specified in claim 2 wherein said torque-transmitting member is substantially in the shape of a circular disc affixed near the center thereof to the radially inner of said rings and affixed near the outer periphery thereof to the radially outer of said rings, and wherein at least one of the end surfaces of said substantially circular disc is provided with a system of recesses and recess-separating webs arranged to operate as impeller blades.
Claim 7
Dependent Claim
28 words
A flexible coupling as specified in claim 5 wherein said recess-separating impeller blade webs project axially outwardly beyond the immediately adjacent end surface of said substantially circular disc.
Claim 8
Dependent Claim
25 words
A flexible coupling as specified in claim 5 wherein the axially outer ends of said recess-separating impeller-blade-webs are tied Together by an annular air-guiding partition.
Claim 9
Dependent Claim
42 words
A flexible coupling as specified in claim 7 wherein said recess-separating impeller-blade-webs and said air-guiding partition define air passageways having at least the same area at the radially outer air outlet ends thereof as at the radially inner air inlet ends thereof.
Claim 10
Dependent Claim
35 words
A flexible coupling as specified in claim 2 wherein said rings are tied together by a pair of axially spaced torque-transmitting members having webs projecting from the juxtaposed surfaces thereof and operating as impeller blades.
Claim 11
Dependent Claim
26 words
A flexible coupling as specified in claim 9 wherein the juxtaposed edges of said webs of said pair of torque-transmitting members are substantially in abutting relation.
Claim 12
Dependent Claim
43 words
A flexible coupling as specified in claim 9 wherein the juxtaposed surfaces of said pair of torque-transmitting members are separated by a partition and wherein the radially inner of said pair of rings defines air-admission passageways arranged to opposite sides of said partition.
Claim 13
Dependent Claim
29 words
A flexible coupling as specified in claim 9 wherein said webs of said pair of torque-transmitting members are arranged out of registry and overlap at the juxtaposed ends thereof.
Claim 14
Dependent Claim
48 words
A flexible coupling as specified in claim 2 wherein said torque-transmitting member is substantially in the shape of a circular disc having internal radially extending passageways establishing forced flows of air in the direction from the axially inner of said rings to the axially outer of said rings.
Claim 15
Dependent Claim
21 words
A flexible coupling as specified in claim 2 wherein said torque-transmitting member is provided with curved radially outwardly extending impeller blades.
Claim 16
Dependent Claim
13 words
A flexible coupling as specified in claim 13 wherein said passageways are curved.
Claim 17
Dependent Claim
33 words
A flexible coupling as specified in claim 2 wherein said rings are tied together by a torque-transmitting member having substantially the configuration of an axial blower to establish axial flows of ambient air.
Claim 18
Dependent Claim
26 words
A flexible coupling as specified in claim 16 wherein said torque-transmitting member includes surface elements imparting to the ambient air a combined axial and radial component.
Claim 19
Dependent Claim
37 words
A flexible coupling as specified in claim 15 wherein said torque-transmitting member is substantially in the shape of a circular disc having axial perforations and intermediate webs in the form of the blades of an axial fan.
Claim 20
Dependent Claim
17 words
A flexible coupling as specified in claim 18 wherein said intermediate webs are provided with web-reinforcing inserts.
Claim 21
Dependent Claim
49 words
A flexible coupling as specified in claim 19 wherein said torque-transmitting member substantially in the shape of a circular disc is provided with axially extending passageways receiving studs affixing said torque-transmitting member to the radially inner of said rings, and wherein said web-reinforcing inserts surround said axially extending passageways.
Claim 22
Dependent Claim
46 words
A flexible coupling as specified in claim 18 wherein said webs in the form of the blades of an axial fan are planar and extend axially within a space bounded by a pair of parallel planes at right angles to the common axis of said rings.
Claim 23
Dependent Claim
34 words
A flexible coupling as specified in claim 21 wherein said webs in the form of blades of an axial fan are arranged in planes enclosing acute angles with the common axis of said rings.
Claim 24
Dependent Claim
25 words
A flexible coupling as specified in claim 18 wherein said webs in the form of blades of an axial fan are curved in blower-blade-like fashion.
Claim 25
Dependent Claim
25 words
A flexible coupling as specified in claim 18 wherein said webs in the form of blades of an axial fan are substantially S-shaped in cross-section.
Claim 26
Dependent Claim
33 words
A flexible coupling as specified in claim 17 wherein said surface elements are formed by apertures in said torque-transmitting member converging in the direction of the common axis of said pair of rings.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |