Patent US417109A successfully refreshed from Google Patents.
US4157966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge equipment
Assignee: Hunter Wire Products Ltd Australia
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Filing: 1977-06-21
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Granted: 1979-06-12
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Expires: 1997-06-21
Abstract
Abstract This invention relates to a centrifuge device comprising a housing extending continuously about an axis of rotation and having a flexibly resilient slitted liner attached to an inner wall portion to provide a wear surface.
Inventors
- 👤 Anthony G. Hassall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:06
CPC Classifications
B; B04; B04B; B04B7/00; B04B7/08; B04B7/12; B04B7/16; B01; B01D; B01D33/00; B01D33/06; B01D33/067; B01D33/11; B01D2201/00; B01D2201/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
118 words
A centrifuge device comprising a perforate basket container having an inlet, an outlet and a circumferential wall which converges towards the outlet, a urethane plastic liner in unitary sheet form having a vertical dimension which is initially shorter than the vertical dimension of said container and plurality of rows of transversely and longitudinally spaced slits formed therein and stretched transversely sufficiently to make the vertical dimension of said liner coincide with the vertical dimension of said basket and to open said slits to form elongate apertures extending in the direction of the axis of rotation of said device which register with apertures of said container, and means bonding the liner to said wall to provide a wear surface.
Claim 2
Dependent Claim
118 words
A centrifuge device comprising a perforate basket container having an inlet, an outlet and a circumferential wall which converges towards the outlet, a urethane plastic liner in unitary sheet form having a vertical dimension which is initially shorter than the vertical dimension of said container and plurality of rows of transversely and longitudinally spaced slits formed therein and stretched transversely sufficiently to make the vertical dimension of said liner coincide with the vertical dimension of said basket and to open said slits to form elongate apertures extending in the direction of the axis of rotation of said device which register with apertures of said container, and means bonding the liner to said wall to provide a wear surface.
Claim 3
Dependent Claim
129 words
A centrifuge device for separating one material from another, comprising a cone-shaped basket having a perforate wall and adapted to be mounted for rotation about an axis extending along the axis of said basket; said basket having a continuous perforate wall extending about its inner peripheral surface; fastening means, disposed at a predetermined location along the axis of said basket, for mounting a perforate flexibly resilient unitary plastic sheet material having an initial vertical dimension shorter than the vertical dimension of said basket, internally of said perforate wall by distorting the vertical dimension of said material to coincide with the vertical dimension of said basket, to provide a wear surface having apertures which register with perforations of said wall against which said materials move during rotation of said basket.
Claim 4
Dependent Claim
129 words
A centrifuge device for separating one material from another, comprising a cone-shaped basket having a perforate wall and adapted to be mounted for rotation about an axis extending along the axis of said basket; said basket having a continuous perforate wall extending about its inner peripheral surface; fastening means, disposed at a predetermined location along the axis of said basket, for mounting a perforate flexibly resilient unitary plastic sheet material having an initial vertical dimension shorter than the vertical dimension of said basket, internally of said perforate wall by distorting the vertical dimension of said material to coincide with the vertical dimension of said basket, to provide a wear surface having apertures which register with perforations of said wall against which said materials move during rotation of said basket.
Claim 5
Dependent Claim
73 words
In a centrifuge device, comprising a perforate basket, a slitted flexible resilient plastic unitary sheet material which in the vertical dimension is initially shorter than the vertical dimension of the basket, applied directly internally to said perforate basket distorting the vertical dimension of said lining to coincide with the vertical dimension of said basket so as to provide a removable lining with the openings in the lining registering with those in the basket.
Claim 6
Dependent Claim
73 words
In a centrifuge device, comprising a perforate basket, a slitted flexible resilient plastic unitary sheet material which in the vertical dimension is initially shorter than the vertical dimension of the basket, applied directly internally to said perforate basket distorting the vertical dimension of said lining to coincide with the vertical dimension of said basket so as to provide a removable lining with the openings in the lining registering with those in the basket.
Claim 7
Dependent Claim
17 words
A centrifuge device as claimed in claim 3, wherein the lining consists of slitted polyurethane sheet material.
Claim 8
Dependent Claim
30 words
A centrifuge device as claimed in claim 3, wherein the slitted plastic liner having been stretched to open the slits, is bonded to the inner surface of the perforate basket.
Claim 9
Dependent Claim
30 words
A centrifuge device as claimed in claim 3, wherein the slits are arranged in parallel transversely spaced zones so that the lining material when stretched assumes a lattice work configuration.
References Cited (Backward Citations)
US2978023A
Cited
US3955754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |