US4517089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for constructing filter element
Assignee: Hydrotreat Inc
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Filing: 1983-05-05
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Granted: 1985-05-14
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Expires: 2003-05-05
Abstract
Abstract A filter mesh constructed from a plurality of structural members. Each member has a central body portion and a plurality of extensions extending therefrom such that when such sections are assembled together the extensions hold the body members in spaced relation and define a plurality of orifices in the structure. The extensions preferrably extend to one side of the body members and are preferrably shaped such that a contoured surface is effectively formed to one side of the body members, such contoured surface simulating the surface of a woven mesh. A variety of mesh patterns may be duplicated by the appropriate alterations in the placement and conformity of the extensions relative to the body portions of the structural members.
Inventors
- 👤 Johnny Arnaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:49
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/44; B01D29/46
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
A filter mesh, comprising a plurality of structural components, each structural component including a body portion and further including a plurality of extensions extending relative to one side of said body portion, said plurality of structural components adapted to cooperatively assemble and being cooperatively shaped to form a surface having a contour similar to the general contour of a woven mesh.
Claim 2
Dependent Claim
61 words
A filter mesh, comprising a plurality of structural components, each structural component including a body portion and further including a plurality of extensions extending relative to one side of said body portion, said plurality of structural components adapted to cooperatively assemble and being cooperatively shaped to form a surface having a contour similar to the general contour of a woven mesh.
Claim 3
Dependent Claim
16 words
The filter mesh of claim 1, wherein said body portion is of a generally continuous form.
Claim 4
Dependent Claim
12 words
The filter mesh of claim 2, wherein said body portion is ring-shaped.
Claim 5
Dependent Claim
18 words
The filter mesh of claim 1, wherein said extensions are generally perpendicularly aligned relative to said body portion.
Claim 6
Dependent Claim
25 words
The filter mesh of claim 4, wherein at least some of said extensions have a radial surface extending from one side of said body portion.
Claim 7
Dependent Claim
89 words
A filter mesh, comprising a plurality of structural components, each structural component having a generally flat, continuous body portion and further having a plurality of ribs extending from at least one generally flat surface of said body portion, at least some of said ribs also extending radially to one side of said body portion, said plurality of sructural components cooperatively aligned to form a countoured radial surface of said filter, wherein said ribs cooperatively cause said surface to exhibit a contour similar to the contour of a woven mesh.
Claim 8
Dependent Claim
89 words
A filter mesh, comprising a plurality of structural components, each structural component having a generally flat, continuous body portion and further having a plurality of ribs extending from at least one generally flat surface of said body portion, at least some of said ribs also extending radially to one side of said body portion, said plurality of sructural components cooperatively aligned to form a countoured radial surface of said filter, wherein said ribs cooperatively cause said surface to exhibit a contour similar to the contour of a woven mesh.
Claim 9
Dependent Claim
19 words
The filter mesh of claim 6, wherein said ribs are oriented generally radially relative to said continuous body portion.
Claim 10
Dependent Claim
36 words
The filter mesh of claim 7, wherein each of said ribs extension relative to each flat side of said ring-shaped body portion and also exhibits a curved surface to a radial side of said body portion.
Claim 11
Dependent Claim
92 words
A filter mesh, comprising: a plurality of mesh rings retained in stacked axial alignment, said rings cooperating to form a structural mesh having a contour on one side which is similar to the contour of a woven mesh, each mesh ring comprising; a generally flat ring-shaped body portion; and a plurality of ribs extending relative to the upper, lower, and inward surfaces of said body portion, each rib presenting a bowed surface to the interior of said ring-shaped body portion, said ribs symmetrically spaced along arc segments of said ring-shaped body portions.
Claim 12
Dependent Claim
92 words
A filter mesh, comprising: a plurality of mesh rings retained in stacked axial alignment, said rings cooperating to form a structural mesh having a contour on one side which is similar to the contour of a woven mesh, each mesh ring comprising; a generally flat ring-shaped body portion; and a plurality of ribs extending relative to the upper, lower, and inward surfaces of said body portion, each rib presenting a bowed surface to the interior of said ring-shaped body portion, said ribs symmetrically spaced along arc segments of said ring-shaped body portions.
Claim 13
Dependent Claim
38 words
The filter mesh of claim 9, wherein said ribs are spaced along said arc segments such that adjacent rings may be oriented and retained with said ribs of axially adjacent rings placed in interdigitating relation to one another.
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) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |