US3878272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-liquid contact apparatus
Assignee: Mass Transfer Ltd
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Filing: 1973-04-16
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Granted: 1975-04-15
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Expires: 1993-04-16
Abstract
Abstract A packing sheet for use in apparatus in which a film of liquid is caused to flow in contact with a gas comprises a number of spaced parallel portions each of which is shaped as a sector of a hollow corrugated tube the peaks and valleys of which occur successively around the circumference of the tube, the said portions being connected by substantially planar portions of said sheet. The said sector preferably has the general shape of an arc of a circle extending about 60*, 90*, 120* or 180* and the corrugation preferably has a zig-zag wave form and is formed of plastics material and has a dimpled surface. The invention also concerns apparatus in which a film of liquid is caused to flow in contact with a gas in which the packing comprises an array of corrugated tubes formed from the above packing sheets. A modification of the invention relates to packing members for use in apparatus in which a film of liquid is caused to flow in contact with a gas. Each of the packing members comprises a hollow tubular member the periphery of which is divided into a number of arcuate regions, each of which regions has a portion shaped as a sector of a hollow corrugated tube in which the peaks and valleys occur successively around the circumference of the tube; and to apparatus packed with such packing members.
Inventors
- 👤 Ronald Priestley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:40
CPC Classifications
B; B01; B01J; B01J10/00; B01J10/02; B01D; B01D1/00; B01D1/14; B01D1/22; B01D3/00; B01D3/14; B01D3/26; B01D3/28; B01J19/00; B01J19/32; C; C02; C02F; C02F3/00; C02F3/02; C02F3/10; C02F3/101; C12; C12M; C12M23/00; C12M23/02; C12M23/06; C12M27/00; C12M27/18; C12M27/20; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32279; B01J2219/324; B01J2219/32408; B01J2219/32483; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24727
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
77 words
A packing sheet for use in apparatus in which a film of liquid is caused to flow in contact with a gas, the sheet comprising a number of discrete spaced parallel portions each of which is shaped as a sector of a hollow corrugated tube, of which the peaks and valleys of the corrugations occur successively around the circumference of the tube, and each of the said portions being connected by substantially planar portions of said sheet.
Claim 2
Dependent Claim
77 words
A packing sheet for use in apparatus in which a film of liquid is caused to flow in contact with a gas, the sheet comprising a number of discrete spaced parallel portions each of which is shaped as a sector of a hollow corrugated tube, of which the peaks and valleys of the corrugations occur successively around the circumference of the tube, and each of the said portions being connected by substantially planar portions of said sheet.
Claim 3
Dependent Claim
33 words
A packing sheet according to claim 1 in which the said sector has the general shape of an arc of a circle extending about an angle selected from 60*, 90*, 120* or 180*.
Claim 4
Dependent Claim
16 words
A packing sheet according to claim 1 in which the corrugation has a zig-zag wave form.
Claim 5
Dependent Claim
16 words
A packing sheet according to claim 1 formed of plastics material and having a dimpled surface.
Claim 6
Dependent Claim
82 words
Apparatus in which a film of liquid is caused to flow in contact with gas in which the packing comprises an array of corrugated tubes formed from packing sheets comprising a number of discrete spaced parallel portions each of which is shaped as a sector of a hollow corrugated tube, of which the peaks and valleys of the corrugations occur successively around the circumference of the tube, and each of the said portions being connected by substantially planar portions of said sheet.
Claim 7
Dependent Claim
82 words
Apparatus in which a film of liquid is caused to flow in contact with gas in which the packing comprises an array of corrugated tubes formed from packing sheets comprising a number of discrete spaced parallel portions each of which is shaped as a sector of a hollow corrugated tube, of which the peaks and valleys of the corrugations occur successively around the circumference of the tube, and each of the said portions being connected by substantially planar portions of said sheet.
Claim 8
Dependent Claim
90 words
Packing members for use in apparatus in which a film of liquid is caused to flow in contact with a gas which comprises a hollow tubular member the periphery of which is divided into a number of discrete arcuate regions, each of said regions having a portion shaped as a sector of a hollow corrugated tube, of which the peaks and valleys of the corrugations occur successively around the circumference of the tube, and wherein each of said portions are connected by generally planar non-corrugated portions of said tubular member.
Claim 9
Dependent Claim
90 words
Packing members for use in apparatus in which a film of liquid is caused to flow in contact with a gas which comprises a hollow tubular member the periphery of which is divided into a number of discrete arcuate regions, each of said regions having a portion shaped as a sector of a hollow corrugated tube, of which the peaks and valleys of the corrugations occur successively around the circumference of the tube, and wherein each of said portions are connected by generally planar non-corrugated portions of said tubular member.
Claim 10
Dependent Claim
31 words
A packing member according to claim 6 in which the sector takes the form of an arc of a circle extending about an angle selected from 60*, 90*, 120* or 180*.
Claim 11
Dependent Claim
16 words
A packing member according to claim 6 formed of plastics material and having a dimpled surface.
Claim 12
Dependent Claim
97 words
Apparatus in which a film of liquid is caused to flow in contact with a gas packed with an array of tubes formed by assembling packing members which each comprise a hollow tubular member the periphery of which is divided into a number of discrete arcuate regions, each of said regions having a portion shaped as a sector of a hollow corrugated tube of which the peaks and valleys of the corrugations occur successively around the circumference of the tube, and wherein each of said portions are connected by generally planar non-corrugated portions of said tubular member.
Claim 13
Dependent Claim
97 words
Apparatus in which a film of liquid is caused to flow in contact with a gas packed with an array of tubes formed by assembling packing members which each comprise a hollow tubular member the periphery of which is divided into a number of discrete arcuate regions, each of said regions having a portion shaped as a sector of a hollow corrugated tube of which the peaks and valleys of the corrugations occur successively around the circumference of the tube, and wherein each of said portions are connected by generally planar non-corrugated portions of said tubular member.
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |