Patent US5674802A successfully refreshed from Google Patents.
US5674802A
Expired / Lapsed
US
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Shares for catalyst carrier elements, and catalyst apparatuses employing same
Assignee: Ushers Inc
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Filing: 1995-06-07
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Granted: 1997-10-07
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Expires: 2015-06-07
Abstract
Abstract Catalyst elements are shaped to provide large surface area per unit of volume (porosity), while providing high packing density. Generally, the elements are characterized by more than six faces of identical size and shape, and by members extending outwardly in three dimensions. Each element includes a plurality of concave regions defined by the intersection of various of their planar surfaces, yet is not simply a section of an extrusion.
Inventors
- 👤 Michael Q. Sheppard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:48
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/004; B01; B01J; B01J19/00; B01J19/30; B01J19/32; B28B17/00; B28B17/0018; B28B3/00; B28B3/02; B28B3/028; B28B3/12; B28B3/126; B28B3/14; B28B7/00; B28B7/0097; E; E04; E04C; E04C5/00; E04C5/07; E04C5/073; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30226; B01J2219/30238; B01J2219/30242; B01J2219/30246; B01J2219/30249; B01J2219/30253; B01J2219/30273; B01J2219/30296; B01J2219/304; B01J2219/30408; B01J2219/30416; B01J2219/30425; B01J2219/30433; B01J2219/30466; B01J35/00; B01J35/50; B33; B33Y; B33Y80/00
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
97 words
A catalyst carrier element for use with other such elements in a catalytic apparatus, the catalyst carrier element being characterized by more than six faces of identical size and shape, and by members extending outwardly in three dimensions, said catalyst carrier element including a plurality of faces, at least of pair of which intersect to bound a concave region, the catalyst carrier dement including a plurality of such concave regions, wherein a catalyst carrier element suitable for nesting with other such catalyst carrier elements to provide a large total surface area per unit of volume is provided.
Claim 2
Dependent Claim
97 words
A catalyst carrier element for use with other such elements in a catalytic apparatus, the catalyst carrier element being characterized by more than six faces of identical size and shape, and by members extending outwardly in three dimensions, said catalyst carrier element including a plurality of faces, at least of pair of which intersect to bound a concave region, the catalyst carrier dement including a plurality of such concave regions, wherein a catalyst carrier element suitable for nesting with other such catalyst carrier elements to provide a large total surface area per unit of volume is provided.
Claim 3
Dependent Claim
23 words
The catalyst carrier element of claim 1 wherein edges of each of said more than six identically sized and shaped faces are coplanar.
Claim 4
Dependent Claim
23 words
The catalyst carrier element of claim 1 in which each of said more than six faces of identical size and shape is planar.
Claim 5
Dependent Claim
16 words
The catalyst carrier element of claim 1 including exactly twelve faces of identical size and shape.
Claim 6
Dependent Claim
16 words
The catalyst carrier element of claim 1 including exactly twenty-four faces of identical size and shape.
Claim 7
Dependent Claim
16 words
The catalyst carrier element of claim 1 having a maximum dimension of less than one inch.
Claim 8
Dependent Claim
16 words
The catalyst carrier element of claim 1 having a maximum dimension of more than one inch.
Claim 9
Dependent Claim
15 words
A catalyst bed that includes a plurality of catalyst carrier elements according to claim 1.
Claim 10
Dependent Claim
23 words
The catalyst bed of claim 8 in which the catalyst carrier elements, in at least localized regions, are positioned in a regular array.
Claim 11
Dependent Claim
24 words
The catalyst bed of claim 9 in which the catalyst carrier elements, in at least localized regions, are positioned in a regular three-dimensional array.
Claim 12
Dependent Claim
92 words
A catalyst carrier element for use with other such elements in a catalytic apparatus, the catalyst carrier element being characterized by more than six three-sides surfaces, wherein edges of each of said three-sided surfaces are coplanar, the catalyst carrier element including a plurality of faces, at least of pair of which intersect to bound a concave region, the catalyst carrier element including plurality of such concave regions, wherein a catalyst suitable for nesting with other such catalyst carrier elements to provide a large total surface area per unit of volume is provided.
Claim 13
Dependent Claim
92 words
A catalyst carrier element for use with other such elements in a catalytic apparatus, the catalyst carrier element being characterized by more than six three-sides surfaces, wherein edges of each of said three-sided surfaces are coplanar, the catalyst carrier element including a plurality of faces, at least of pair of which intersect to bound a concave region, the catalyst carrier element including plurality of such concave regions, wherein a catalyst suitable for nesting with other such catalyst carrier elements to provide a large total surface area per unit of volume is provided.
Claim 14
Dependent Claim
16 words
The catalyst carrier element of claim 11 in which each of the three-sided surfaces is planar.
Claim 15
Dependent Claim
43 words
The catalyst carrier element of claim 11 comprising a unitary body in the shape of a base tetrahedron having at least two tetrahedral appendages extending therefrom, each of said appendages having a face coincident with one of the faces of the base tetrahedron.
Claim 16
Dependent Claim
12 words
The catalyst carrier element of claim 11 including exactly twelve three-sided surfaces.
Claim 17
Dependent Claim
30 words
The catalyst carrier element of claim 11 comprising a unitary body in the shape of a base cube with a four-sided and extending outwardly from each face of the cube.
Claim 18
Dependent Claim
26 words
The catalyst carrier element of claim 15 in which each arm has the shape of an obelisk, tapering as it extends away from the base cube.
Claim 19
Dependent Claim
12 words
The catalyst carrier element of claim 11 including exactly twenty-four three-sided surfaces.
Claim 20
Dependent Claim
13 words
The catalyst carrier element of claim 11 including a plurality of four-sided surfaces.
Claim 21
Dependent Claim
13 words
The catalyst carrier element of claim 18 including a plurality of trapezoidal surfaces.
Claim 22
Dependent Claim
14 words
A catalytic bed including a plurality of catalyst carrier elements according to claim 11.
Claim 23
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising twelve three-sided faces.
Claim 24
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising sixteen three-sided faces.
Claim 25
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising twenty-four three-sided faces.
Claim 26
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising thirty-two three-sided faces.
Claim 27
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising twenty-four four-sided faces.
Claim 28
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising eight four-sided faces.
Claim 29
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising eight six-sided faces.
Claim 30
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising twelve six-sided faces.
Claim 31
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising four eight-sided faces.
Claim 32
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising exactly twelve faces.
Claim 33
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising exactly twenty-eight faces.
Claim 34
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising exactly thirty-six faces.
Claim 35
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising exactly forty-four faces.
Claim 36
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising exactly forty-eight faces.
Claim 37
Dependent Claim
11 words
The catalyst carrier element of claim 1 comprising exactly fifty-two faces.
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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) | 2000-10-06 | 2001-04-07 | 2001-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-06 | 2005-04-07 | 2005-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-06 | 2009-04-07 | 2009-10-07 | $7700.00 | Window Closed / Lapsed |