Patent US5118331A successfully refreshed from Google Patents.
US5118331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas treatment or separation apparatus
Assignee: BOC Group Ltd
•
Filing: 1991-07-24
•
Granted: 1992-06-02
•
Expires: 2011-07-24
Abstract
Abstract A gas treatment or separation apparatus includes a vessel (2) containing a bed (18) of particulate material. Within the bed (18) there is located a plurality of distensible hollow members (30) each capable of being placed in communication with a source of fluid under pressure. The members (30) restrain movement of the particulate material.
Inventors
- 👤 Michael E. Garrett
- 👤 Piotr J. Sadkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:53
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/047; B01D53/0407; B01D53/0423; B01J; B01J8/00; B01J8/008; B01J8/02; B01J8/0285; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2253/116; B01D2253/25; B01D2256/00; B01D2256/10; B01D2256/12; B01D2257/00; B01D2257/10; B01D2257/102; B01D2257/104; B01D53/0446; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/0007; B01J2208/00106; B01J2208/00115; B01J2208/00132; B01J2208/00265; B01J2208/00274; B01J2208/00283; B01J2208/00796; B01J2208/00884; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00121; B01J2219/00123
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
63 words
Gas treatment or separation apparatus including at least one vessel which contains a bed of particulate material and which has at least one gas inlet and at least one gas outlet, wherein the bed receives a plurality of distensible hollow members extending generally longitudinally of the bed, said members being able to be placed in communication with a source of fluid under pressure.
Claim 2
Dependent Claim
63 words
Gas treatment or separation apparatus including at least one vessel which contains a bed of particulate material and which has at least one gas inlet and at least one gas outlet, wherein the bed receives a plurality of distensible hollow members extending generally longitudinally of the bed, said members being able to be placed in communication with a source of fluid under pressure.
Claim 3
Dependent Claim
37 words
Apparatus as claimed in claim 1 for separating a gaseous mixture by pressure swing adsorption, additionally including a compressor to compress the incoming gas mixture, wherein the distensible members communicate directly with the outlet of the compressor.
Claim 4
Dependent Claim
31 words
Apparatus as claimed in claim 1, in which the distensible members are connected to a pressurised source of a gas mixture of different composition from the gas mixture to be separated.
Claim 5
Dependent Claim
15 words
Apparatus as claimed in claim 1, additionally including hydraulic means for pressurising the distensible members.
Claim 6
Dependent Claim
17 words
Apparatus as claimed in claim 1, wherein the distensible members are pressurised by a heat transfer fluid.
Claim 7
Dependent Claim
18 words
Apparatus as claimed in any one of claims 1-5, wherein the distensible members are formed of plastics material.
Claim 8
Dependent Claim
16 words
Apparatus as claimed in any one of claims 1-5, in which the distensible members are elongate.
Claim 9
Dependent Claim
20 words
Apparatus as claimed in claim 7, in which some of the distensible members are of different length from the others.
Claim 10
Dependent Claim
26 words
Apparatus as claimed in any one of claim 1-5, wherein each distensible member comprises a plastics hose of a shape such that it has flat sides.
References Cited (Backward Citations)
US2389225A
Cited
US2988222A
Cited
US3598539A
Cited
US3708072A
Cited
US3838977A
Cited
US3990858A
Cited
JPS54125179A
Cited
JPS5542845A
Cited
US4250035A
Cited
DE2950983A1
Cited
US4194891A
Cited
GB2082082A
Cited
US4337153A
Cited
US4576614A
Cited
US4560393A
Cited
US4764346A
Cited
JPS6466461A
Cited
US4997465A
Cited
US5002596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-02 | 1995-12-02 | 1996-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-02 | 1999-12-02 | 2000-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-02 | 2003-12-02 | 2004-06-02 | $7700.00 | Window Closed / Lapsed |