Patent US4597869A successfully refreshed from Google Patents.
US4597869A
Expired / Lapsed
US
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Plate pack for an inclined plate separator
Assignee: Axel Johnson Engineering AB
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Filing: 1985-01-22
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Granted: 1986-07-01
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Expires: 2005-01-22
Abstract
Abstract In the particular embodiment of the invention described in the specification, a plate pack for an inclined plate separator has plate support members forming the side walls of the separator in which the separation plates are received in grooves formed by converging tongues. The support members are releasably joined together edge to edge by a bead projecting from one edge of the support member and a groove formed in the adjacent edge of the next supporting member.
Inventors
- 👤 Sven Hakansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:48
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02; B01D21/0003; B01D21/0018; B01D21/0039; B01D21/0045; B01D21/0057; B01D21/0069
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
A plate pack for an inclined plate separator comprising a plurality of spaced-apart substantially parallel plates inclined to the horizontal and forming a plurality of separation passages therebetween; a plurality of plate support members covering the sides of the separation passages; the plate support members having substantially the same inclination as the plates and being joined together by fastening means, formed along the inclined edges of the support members, so as to form the opposite side walls of the plate pack; the plate support members being provided with at least one slot extending at the inclination of the plates, the slot having elastically resilient side walls and having in the depth direction of the slot at least one narrow portion with a separation between the side wall surfaces which is less than the plate thickness.
Claim 2
Dependent Claim
135 words
A plate pack for an inclined plate separator comprising a plurality of spaced-apart substantially parallel plates inclined to the horizontal and forming a plurality of separation passages therebetween; a plurality of plate support members covering the sides of the separation passages; the plate support members having substantially the same inclination as the plates and being joined together by fastening means, formed along the inclined edges of the support members, so as to form the opposite side walls of the plate pack; the plate support members being provided with at least one slot extending at the inclination of the plates, the slot having elastically resilient side walls and having in the depth direction of the slot at least one narrow portion with a separation between the side wall surfaces which is less than the plate thickness.
Claim 3
Dependent Claim
20 words
A plate pack according to claim 1 wherein the narrow portion of the slot is positioned at the slot opening.
Claim 4
Dependent Claim
23 words
A plate pack according to claim 2 wherein the slot has a diverging cross section from the slot opening towards the slot bottom.
Claim 5
Dependent Claim
23 words
A plate pack according to any of the claims 1-3 wherein the slot is formed between two tongues projecting from the support member.
Claim 6
Dependent Claim
19 words
A plate pack according to claim 1 wherein the fastening means includes a snap joint between adjacent support members.
Claim 7
Dependent Claim
30 words
A plate pack according to claim 5 wherein the fastening means comprises a bead extending along one of the support members and a groove extending along the adjacent support member.
Claim 8
Dependent Claim
40 words
A plate pack according to claim 6 wherein the bead is formed with a waist and the groove is formed by a curved lip projecting from the support member, the free end of the lip being received in the waist.
Claim 9
Dependent Claim
27 words
A plate pack according to claim 7 wherein the fastening means includes a shoulder projecting from the support member opposite to the free end of the lip.
References Cited (Backward Citations)
SE340612B
Cited
FR1571937A
Cited
US4028256A
Cited
GB1378323A
Cited
US3852199A
Cited
US4405459A
Cited
US4400280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |