Patent US6458191B1 successfully refreshed from Google Patents.
US6458191B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator inlet
Assignee: Equinor Energy AS
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Filing: 1999-03-03
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Granted: 2002-10-01
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Expires: 2019-03-03
Abstract
Abstract A separator inlet includes a spiral channel in a channel housing and having an open top. Fluid flows in tangentially and out of a central outlet of the channel housing, or in a reverse direction.
Inventors
- 👤 Morten Lingelem
- 👤 Bård Strand
- 👤 Pål Jahre Nilsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:06
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
56 words
A separator inlet comprising: a channel housing; a spiral channel arranged in said channel housing; a first line communicating with said spiral channel and arranged so as to be tangential to said spiral channel; a centrally-located second line communicating with and extending from said spiral channel; and a funnel-shaped gas trap connected to said channel housing.
Claim 2
Dependent Claim
56 words
A separator inlet comprising: a channel housing; a spiral channel arranged in said channel housing; a first line communicating with said spiral channel and arranged so as to be tangential to said spiral channel; a centrally-located second line communicating with and extending from said spiral channel; and a funnel-shaped gas trap connected to said channel housing.
Claim 3
Dependent Claim
52 words
The separator inlet of claim 1 , wherein said second line comprises a fluid outlet line, said funnel-shaped gas trap is arranged on an exterior of said channel housing so as to extend below a lower end of said fluid outlet line and so as to communicate with said fluid outlet line.
Claim 4
Dependent Claim
59 words
The separator inlet of claim 2 , wherein said channel housing is adapted to be positioned in a separator tank at a surface level of a fluid to be separated, said funnel-shaped gas trap being arranged to extend from below said lower end of said fluid outlet line to above the surface level of the fluid to be separated.
Claim 5
Dependent Claim
29 words
The separator inlet of claim 1 , further comprising mounting parts connected to said channel housing and said funnel-shaped gas trap so as to support said funnel-shaped gas trap.
Claim 6
Dependent Claim
20 words
The separator inlet of claim 1 , wherein said first line communicates with said second line via said spiral channel.
Claim 7
Dependent Claim
59 words
A separator inlet comprising: a channel housing; a spiral channel arranged in said channel housing, said spiral channel having a closed bottom surface and an open top; a first line communicating with said spiral channel and arranged so as to be tangential to said spiral channel; and a centrally-located second line communicating with and extending from said spiral channel.
Claim 8
Dependent Claim
59 words
A separator inlet comprising: a channel housing; a spiral channel arranged in said channel housing, said spiral channel having a closed bottom surface and an open top; a first line communicating with said spiral channel and arranged so as to be tangential to said spiral channel; and a centrally-located second line communicating with and extending from said spiral channel.
Claim 9
Dependent Claim
38 words
The separator inlet of claim 6 , wherein said spiral channel comprises a disc-shaped plate forming said closed bottom surface, and comprises plates extending from said disc-shaped plate so as to form side walls of said spiral channel.
Claim 10
Dependent Claim
20 words
The separator inlet of claim 6 , wherein said first line communicates with said second line via said spiral channel.
Claim 11
Dependent Claim
97 words
A separator inlet comprising: a channel housing; a spiral channel arranged in said channel housing, said spiral channel being formed of a disc-shaped bottom plate and side plates sloping in an inward direction toward a central axis of said channel housing; a first line communicating with said spiral channel and arranged so as to be tangential to said spiral channel; and a centrally-located cylindrical-shaped second line communicating with and extending from said spiral channel, said cylindrical-shaped second line having openings for allowing communication between an interior of said spiral channel and an interior of said second line.
Claim 12
Dependent Claim
97 words
A separator inlet comprising: a channel housing; a spiral channel arranged in said channel housing, said spiral channel being formed of a disc-shaped bottom plate and side plates sloping in an inward direction toward a central axis of said channel housing; a first line communicating with said spiral channel and arranged so as to be tangential to said spiral channel; and a centrally-located cylindrical-shaped second line communicating with and extending from said spiral channel, said cylindrical-shaped second line having openings for allowing communication between an interior of said spiral channel and an interior of said second line.
Claim 13
Dependent Claim
20 words
The separator inlet of claim 9 , wherein said first line communicates with said second line via said spiral channel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-09-30 | 2006-04-01 | 2006-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-30 | 2010-04-01 | 2010-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-30 | 2014-04-01 | 2014-10-01 | $7700.00 | Window Closed / Lapsed |