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US4842920A
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Plastics elements for inordinate film-flow packings
Assignee: HUNGARIA MUANYAGFELDOLG OZO VALLALAT 1225 VUDAPEST NAGYTETENYI UT 216 - HUNGARY
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Filing: 1987-08-04
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Granted: 1989-06-27
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Expires: 2007-08-04
Abstract
Abstract A spherical packing element for biological film processes which is formed of a flat circular base plate having a central, throughgoing opening therein, a flat and imperforate disk reinforcing plate extending along the opening and lying in a plane perpendicular to the base plate and a plurality of spaced apart, imperforate and mutually parallel circular lamellae perpendicular to both plates, traversing the opening, and spaced apart in the direction of the diameter. The packing element has a surface area of at least 250 m 2 /m 3 , and wall thickness of the plates and lamellae are 0.1-2 mm.
Inventors
- 👤 Endre Banai
- 👤 Tibor Bacsinsky
- 👤 Vladimir Kormos
- 👤 Jozsef Molnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:45
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/10; B; B01; B01J; B01J19/00; B01J19/30; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30207; B01J2219/30215; B01J2219/304; B01J2219/30466; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S261/00; Y10S261/72; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
A packing element for biological film processes comprising a one-piece synthetic-resin generally spherical body consisting essentially of: a flat circular-disk base plate having a circular periphery and formed inward thereof with an elongated slot-shaped opening rounded at its ends and with a major axis along a diameter of the plate; a flat circular and imperforate disk reinforcing plate extending along the diameter of said base plate through said opening and lying in a plane perpendicular to said base plate; and a plurality of spaced-apart, imperforate, and mutually parallel circular lamellae perpendicular to both said plates, traversing the opening, and spaced apart in the direction of said diameter, said body having a specific surface area of at least 250 m 2 /m 3 .
Claim 2
Dependent Claim
123 words
A packing element for biological film processes comprising a one-piece synthetic-resin generally spherical body consisting essentially of: a flat circular-disk base plate having a circular periphery and formed inward thereof with an elongated slot-shaped opening rounded at its ends and with a major axis along a diameter of the plate; a flat circular and imperforate disk reinforcing plate extending along the diameter of said base plate through said opening and lying in a plane perpendicular to said base plate; and a plurality of spaced-apart, imperforate, and mutually parallel circular lamellae perpendicular to both said plates, traversing the opening, and spaced apart in the direction of said diameter, said body having a specific surface area of at least 250 m 2 /m 3 .
Claim 3
Dependent Claim
21 words
The packing element defined in claim 1 wherein said plates and said lamellae have thicknesses of substantially 0.1 to 2 mm.
Claim 4
Dependent Claim
25 words
The packing element defined in claim 1 wherein at least one of said plates and said lamellae is corrugated to increase the surface area thereof.
Claim 5
Dependent Claim
19 words
The packing element defined in claim 1 wherein said plates and said lamellae have a thickness of 0.4 mm.
Claim 6
Dependent Claim
19 words
The packing element defined in claim 4 wherein said body has a diameter of substantially 10 to 100 mm.
Claim 7
Dependent Claim
53 words
The packing element defined in claim 5 wherein said lamellae are spaced apart from each other by about 5 mm, the diameter of said body is about 30 mm, the specific surface area of the element is about 400 m 2 /m 3 and the specific weight is substantially 85 Kg/m 3 .
Claim 8
Dependent Claim
107 words
A packing element for biological film processes comprising a one-piece synthetic-resin generally spherical body consisting essentially of: a flat circular-disk base plate having a circular periphery and formed inward thereof with a throughgoing opening; a flat circular and imperforate disk reinforcing plate extending along the diameter of the base plate through the opening and lying in a plane perpendicular to the base plate; and a plurality of spaced-apart, imperforate, and mutually parallel circular lamellae perpendicular to both the plates, traversing the opening, and spaced apart in the direction of the diameter, the body having a specific surface area of at least 250 m 2 /m 3 .
Claim 9
Dependent Claim
107 words
A packing element for biological film processes comprising a one-piece synthetic-resin generally spherical body consisting essentially of: a flat circular-disk base plate having a circular periphery and formed inward thereof with a throughgoing opening; a flat circular and imperforate disk reinforcing plate extending along the diameter of the base plate through the opening and lying in a plane perpendicular to the base plate; and a plurality of spaced-apart, imperforate, and mutually parallel circular lamellae perpendicular to both the plates, traversing the opening, and spaced apart in the direction of the diameter, the body having a specific surface area of at least 250 m 2 /m 3 .
References Cited (Backward Citations)
US2212932A
Cited
FR1405374A
Cited
US3825119A
Cited
DE2914079A1
Cited
US4554114A
Cited
US4425285A
Cited
US4668442A
Cited
JPH10104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |