US4251239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-purpose ceramic element
Assignee: Alfred University Research Foundation Inc
•
Filing: 1978-08-28
•
Granted: 1981-02-17
•
Expires: 1998-08-28
Abstract
Abstract A ceramic sponge made from plastic is described. Because of the ease of cutting the plastic in various shapes before converting to ceramic several unique applications are possible. In case of a column packing better contact between liquid and gas is made. For an auto catalytic converter better contact between gas and catalyst is realized. By cutting in other ways a filter to remove solids is made, permitting longer use before clogging, also a scrubber to remove particulates. A rotary ceramic filter is described; it is also a composite of fibers and ceramic which retains small particulates without excessive pressure drop upon passage of fluid through the filter. An acid resistant collector plate for an electrostatic precipitation is described.
Inventors
- 👤 Robert A. Clyde
- 👤 William B. Crandall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:03
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/021; F01N3/023; F01N3/0233; B; B01; B01D; B01D39/00; B01D39/14; B01D39/20; B01D39/2068; B01D39/2093; B01J; B01J15/00; B01J15/005; B01J19/00; B01J19/32; B03; B03C; B03C3/00; B03C3/34; B03C3/40; B03C3/45; B03C3/60; B03C3/62; C; C04; C04B; C04B38/00; C04B38/06; C04B38/0615; F01N3/01; F01N3/0214; F01N3/022; F01N3/0222; F01N3/0228; F01N3/033; F01N3/035; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2825; F01N3/2828; B01J2219/00; B01J2219/32; B01J2219/324; B01J2219/32425; B01J2219/32441; Y; Y10; Y10S; Y10S261/00; Y10S261/72; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
165 words
A ceramic ceramic element for positioning in a spanning relation of a conduit as a bed through which fluid flowing in the conduit is constrained to pass, and comprising: a ceramic sponge body having an upstream face and a downstream face, and including a network of randomly located interconnected closely adjacent ceramic filaments defining a plurality of interconnected cavities suitable for providing a tortuous fluid flow path through the bed, which fluid flow path is partially obstructed by the ceramic filaments; and said ceramic sponge body having a plurality of internal voids of a predetermined definite pattern, each of said voids having an upstream zone and a downstream zone and the surface area surrounding each void being composed of a multiplicity of closely spaced terminal end zones of said ceramic filaments and said voids providing substantially an unobstructed selected pathway at predeterminal definite locations in said ceramic sponge bed to reduce the pressure drop of the fluid passing through the bed to a predetermined amount.
Claim 2
Dependent Claim
165 words
A ceramic ceramic element for positioning in a spanning relation of a conduit as a bed through which fluid flowing in the conduit is constrained to pass, and comprising: a ceramic sponge body having an upstream face and a downstream face, and including a network of randomly located interconnected closely adjacent ceramic filaments defining a plurality of interconnected cavities suitable for providing a tortuous fluid flow path through the bed, which fluid flow path is partially obstructed by the ceramic filaments; and said ceramic sponge body having a plurality of internal voids of a predetermined definite pattern, each of said voids having an upstream zone and a downstream zone and the surface area surrounding each void being composed of a multiplicity of closely spaced terminal end zones of said ceramic filaments and said voids providing substantially an unobstructed selected pathway at predeterminal definite locations in said ceramic sponge bed to reduce the pressure drop of the fluid passing through the bed to a predetermined amount.
Claim 3
Dependent Claim
29 words
The ceramic element as set forth in claim 1 where said plurality of voids are provided in the bed extending in a direction between the upstream and downstream faces.
Claim 4
Dependent Claim
23 words
The ceramic element as set forth in claim 2 wherein the voids are spaced from one another between the upstream and downstream faces.
Claim 5
Dependent Claim
17 words
The ceramic element as set forth in claim 3 wherein the voids are parallel to one another.
Claim 6
Dependent Claim
19 words
The ceramic element as set forth in claim 2 wherein the voids extend between the upstream and downstream surfaces.
Claim 7
Dependent Claim
16 words
The ceramic element as set forth in claim 5 wherein the voids comprise continuous unobstructed passageways.
Claim 8
Dependent Claim
17 words
The ceramic element as set forth in claim 6 wherein the passageways are of a spiral shape.
Claim 9
Dependent Claim
29 words
The ceramic element as set forth in claim 1 wherein the internal voids are partially filled with a filter material of a finer nature than said ceramic sponge body.
Claim 10
Dependent Claim
28 words
The ceramic element as set forth in claim 1 wherein the internal voids are completely filled with filter material of a finer nature than said ceramic sponge body.
Claim 11
Dependent Claim
30 words
The ceramic element as set forth in claim 1 wherein means are provided adjacent said ceramic sponge body to charge particles causing the particles to adhere to the sponge body.
Claim 12
Dependent Claim
18 words
The ceramic element as set forth in claim 1 wherein the internal voids are larger than 0.25 inches.
Claim 13
Dependent Claim
15 words
The ceramic element as set forth in claim 1 wherein the internal voids are curved.
Claim 14
Dependent Claim
19 words
The ceramic element as set forth in claim 1 wherein the sponge body is coated with a catalytic metal.
References Cited (Backward Citations)
US553994A
Cited
GB883876A
Cited
US3235089A
Cited
US3410057A
Cited
US3487610A
Cited
GB1142800A
Cited
US3796657A
Cited
US3458338A
Cited
US3524548A
Cited
US3746642A
Cited
US3788486A
Cited
US4028275A
Cited
US3998758A
Cited
DE2503681A1
Cited
US4152183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |