US3789623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge machine
Assignee: Fives Lille Cail
•
Filing: 1972-05-04
•
Granted: 1974-02-05
•
Expires: 1992-05-04
Abstract
Abstract A centrifuge machine has a universal joint mounting the rotor on the rotor shaft for yielding displacement transversely of the rotor and shaft axes.
Inventors
- 👤 R Retali
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:38
CPC Classifications
B; B04; B04B; B04B9/00; B04B9/12
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
82 words
A centrifuge machine comprising 1. a rotor having an axis, 2. a rotary entrainment shaft for the rotor having an axis, 3. a universal joint mounting the rotor on the shaft, and 4. elastic leaves connecting the universal joint to the rotor and to the shaft, respectively, for yielding displacement transversely of the rotor and shaft axes, the planes of the leaves fixing the joint to the rotor being perpendicular to the planes of the leaves fixing the joint to the shaft.
Claim 2
Dependent Claim
82 words
A centrifuge machine comprising 1. a rotor having an axis, 2. a rotary entrainment shaft for the rotor having an axis, 3. a universal joint mounting the rotor on the shaft, and 4. elastic leaves connecting the universal joint to the rotor and to the shaft, respectively, for yielding displacement transversely of the rotor and shaft axes, the planes of the leaves fixing the joint to the rotor being perpendicular to the planes of the leaves fixing the joint to the shaft.
Claim 3
Dependent Claim
10 words
a rotary entrainment shaft for the rotor having an axis,
Claim 4
Dependent Claim
10 words
a rotary entrainment shaft for the rotor having an axis,
Claim 5
Dependent Claim
24 words
The centrifuge machine of claim 1, wherein each of the leaves is sub-divided into several blades in the direction of elongation of the leaves.
Claim 6
Dependent Claim
10 words
a rotary entrainment shaft for the rotor having an axis,
Claim 7
Dependent Claim
10 words
a rotary entrainment shaft for the rotor having an axis,
Claim 8
Dependent Claim
10 words
a rotary entrainment shaft for the rotor having an axis,
Claim 9
Dependent Claim
10 words
a rotary entrainment shaft for the rotor having an axis,
Claim 10
Dependent Claim
10 words
a rotary entrainment shaft for the rotor having an axis,
Claim 11
Dependent Claim
10 words
a rotary entrainment shaft for the rotor having an axis,
Claim 12
Dependent Claim
57 words
a universal joint mounting the rotor on the shaft for yielding displacement transversely of the rotor and shaft axes, 4 a male element axially displaceably mounted on the shaft, and 5 a complementary female element on the rotor for engagement with the male shaft element for unitizing the rotor and the shaft, with their axes in alignment.
Claim 13
Dependent Claim
57 words
a universal joint mounting the rotor on the shaft for yielding displacement transversely of the rotor and shaft axes, 4 a male element axially displaceably mounted on the shaft, and 5 a complementary female element on the rotor for engagement with the male shaft element for unitizing the rotor and the shaft, with their axes in alignment.
Claim 14
Dependent Claim
20 words
a universal joint mounting the rotor on the shaft for yielding displacement transversely of the rotor and shaft axes, and
Claim 15
Dependent Claim
20 words
a universal joint mounting the rotor on the shaft for yielding displacement transversely of the rotor and shaft axes, and
Claim 16
Dependent Claim
20 words
a universal joint mounting the rotor on the shaft for yielding displacement transversely of the rotor and shaft axes, and
Claim 17
Dependent Claim
20 words
a universal joint mounting the rotor on the shaft for yielding displacement transversely of the rotor and shaft axes, and
Claim 18
Dependent Claim
45 words
The centrifuge machine of claim 1, wherein the universal joint is constituted by a cross piece with four trunnions disposed along two intersecting axes perpendicular to each other and bearings mounted on the trunnions and connected to the rotor and shaft respectively by said leaves.
Claim 19
Dependent Claim
10 words
a universal joint mounting the rotor on the shaft, and
Claim 20
Dependent Claim
10 words
a universal joint mounting the rotor on the shaft, and
Claim 21
Dependent Claim
49 words
elastic leaves connecting the universal joint to the rotor and to the shaft, respectively, for yielding displacement transversely of the rotor and shaft axes, the planes of the leaves fixing the joint to the rotor being perpendicular to the planes of the leaves fixing the joint to the shaft.
Claim 22
Dependent Claim
49 words
elastic leaves connecting the universal joint to the rotor and to the shaft, respectively, for yielding displacement transversely of the rotor and shaft axes, the planes of the leaves fixing the joint to the rotor being perpendicular to the planes of the leaves fixing the joint to the shaft.
Claim 23
Dependent Claim
60 words
The centrifuge machine of claim 1, wherein the universal joint is constituted by a collar surrounding the shaft, the inner diameter of the collar exceeding the diameter of the shaft, the collar carrying four trunnions disposed along intersecting axes perpendicular to each other and bearings mounted on the trunnions and connected to the rotor and shaft respectively by said leaves.
Claim 24
Dependent Claim
8 words
a damping device which brakes the transverse displacement.
Claim 25
Dependent Claim
8 words
a damping device which brakes the transverse displacement.
Claim 26
Dependent Claim
19 words
the center of the universal joint is positioned in the region of the center of gravity of the rotor.
Claim 27
Dependent Claim
19 words
the center of the universal joint is positioned in the region of the center of gravity of the rotor.
Claim 28
Dependent Claim
4 words
A centrifuge machine comprising
Claim 29
Dependent Claim
4 words
A centrifuge machine comprising
Claim 30
Dependent Claim
4 words
A centrifuge machine comprising
Claim 31
Dependent Claim
4 words
A centrifuge machine comprising
Claim 32
Dependent Claim
4 words
A centrifuge machine comprising
Claim 33
Dependent Claim
4 words
A centrifuge machine comprising
Claim 34
Dependent Claim
37 words
The centrifuge machine of claim 5, wherein the damping device is a hydraulic shock absorber constituted by deformable capsules filled with a liquid and constricted tubing interconnecting the capsules, the transverse displacement causing deformation of the capsules.
Claim 35
Dependent Claim
19 words
The centrifuge of claim 5, wherein the damping device is constituted by rubber blocks deformable by the transverse displacements.
Claim 36
Dependent Claim
44 words
The centrifuge machine of claim 1, further comprising a male element axially displaceably mounted on the shaft and a complementary female element on the rotor for engagement with the male shaft element for unitizing the rotor and the shaft, with their axes in alignment.
Claim 37
Dependent Claim
37 words
The centrifuge machine of claim 1, further comprising a flexible sleeve surrounding the universal joint and connected respectively to the rotor and the shaft, the sleeve defining a liquid impervious chamber, and a lubricant filling the chamber.
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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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |