US4086811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for mounting rotary components
Assignee: Individual
•
Filing: 1977-02-01
•
Granted: 1978-05-02
•
Expires: 1997-02-01
Abstract
Abstract A system for mounting a device comprising two rotors which rotate coaxially in a stator comprising two spaced-apart supports held in the stator, a stationary shaft secured by one of these supports in cantilever manner coaxially with the stator and on which the first rotor is rotatably mounted, a first bearing formed at the free end of the stationary shaft and a second bearing secured by the second support coaxially with the stationary shaft, and a rotary shaft secured to the second rotor and rotatably mounted in the first and the second bearing.
Inventors
- 👤 Pierre Marie Marcel Penet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:48
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/04; F04D29/046; F16; F16C; F16C17/00; F16C17/26; G; G01; G01F; G01F1/00; G01F1/05; G01F1/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
104 words
A system for mounting a first and a second rotor for coaxial rotation in a stator, the system comprising a first and a second support secured in the stator in spaced apart relation, a stationary shaft secured in cantilever fashion coaxially within the stator by the first support, means mounting the first rotor for rotation on said stationary shaft, a first bearing formed at the free end of the stationary shaft and a second bearing secured by the second support coaxially with the stationary shaft, and a rotary shaft secured to the second rotor and rotatably mounted in the first and the second bearings.
Claim 2
Independent Claim
104 words
A system for mounting a first and a second rotor for coaxial rotation in a stator, the system comprising a first and a second support secured in the stator in spaced apart relation, a stationary shaft secured in cantilever fashion coaxially within the stator by the first support, means mounting the first rotor for rotation on said stationary shaft, a first bearing formed at the free end of the stationary shaft and a second bearing secured by the second support coaxially with the stationary shaft, and a rotary shaft secured to the second rotor and rotatably mounted in the first and the second bearings.
Claim 3
Dependent Claim
29 words
A system according to claim 1, wherein said stationary shaft is separate from the first support and is press-fitted at one end into a bore in the first support.
Claim 4
Dependent Claim
30 words
A system according to claim 2, wherein the means for mounting the first rotor on the stationary shaft comprise at least one rotary ring rotatably mounted on the stationary shaft.
Claim 5
Dependent Claim
37 words
A system according to claim 3, wherein the press-fitted end of said stationary shaft is enlarged and serves as an abutment for the rotary ring to limit the movement of the first rotor towards the first support.
Claim 6
Dependent Claim
42 words
A system according to claim 3, comprising an abutment ring and means mounting the abutment ring on the stationary shaft so as to serve as an abutment for the rotary ring and prevent the first rotor from moving towards the second support.
Claim 7
Dependent Claim
103 words
A system according to claim 5, wherein the first rotor is an impeller having a hub and blades, and the abutment ring has an outer diameter smaller than the hub diameter, the system comprising a further ring having an outer diameter equal to the hub diameter and an inner diameter equal to the outer diameter of the abutment ring, a cap having a hollow front portion, an outer diameter equal to that of the hub and an inner diameter equal to that of the abutment ring, and means whereby the further ring or the cap can be secured on to the abutment ring.
Claim 8
Dependent Claim
40 words
A system according to claim 2, wherein the the second bearing is formed in a component axially movable in a bore in the second support under the action of an adjusting screw cooperating with a thread in the second support.
Claim 9
Dependent Claim
28 words
A system according to claim 7, wherein the rotary shaft has two pointed conical ends and the first and second bearings are depressions receiving the pointed ends respectively.
Claim 10
Dependent Claim
28 words
A system according to claim 8, wherein the ends of the rotary shaft form cylindrical journals and the first and second bearings are bores receiving the journals respectively.
Claim 11
Dependent Claim
41 words
A system according to claim 1, wherein the second bearing is formed in a component which can move axially in a bore in the second support under the action of an adjusting screw cooperating with a thread in the second support.
Claim 12
Dependent Claim
30 words
A system according to claim 10, wherein the ends of the rotary shaft form cylindrical journals and the first and second bearings are bores in which the journals respectively engage.
Claim 13
Dependent Claim
28 words
A system according to claim 1, wherein the rotary shaft has two pointed conical ends and the first and second bearings are depressions receiving the pointed ends respectively.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |