Patent US641926A successfully refreshed from Google Patents.
Patent US4637637A successfully refreshed from Google Patents.
US4637637A
Expired / Lapsed
US
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Pipeline system with encapsulated insulation
Assignee: ExxonMobil Upstream Research Co
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Filing: 1984-12-11
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Granted: 1987-01-20
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Expires: 2004-12-11
Abstract
Abstract A pipeline system which is capable of withstanding a range of extreme temperatures is disclosed. A pipe is surrounded by a vapor barrier which has a corrugated surface facing the pipe. The amplitude of the corrugations changes, absorbing the stress imposed by extreme temperatures, especially those at which liquefied natural gas is carried.
Inventors
- 👤 Alexander S. Adorjan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:51
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/12; F16L59/14; F16L59/143
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
A section of a pipeline system, comprising: a section of pipe; a first vapor barrier surrounding said pipe section having a first surface facing said pipe section and a second surface opposite said first surface, said first surface having a corrugated construction; insulation material having a first surface and a second surface, said insulation material concentrically spaced from said pipe section, the first surface of said insulation material encasing and adhering to the second surface of said vapor barrier; and a second vapor barrier concentrically spaced from said pipe section, said vapor barrier encasing and adhering to the second surface of said insulation material.
Claim 2
Dependent Claim
104 words
A section of a pipeline system, comprising: a section of pipe; a first vapor barrier surrounding said pipe section having a first surface facing said pipe section and a second surface opposite said first surface, said first surface having a corrugated construction; insulation material having a first surface and a second surface, said insulation material concentrically spaced from said pipe section, the first surface of said insulation material encasing and adhering to the second surface of said vapor barrier; and a second vapor barrier concentrically spaced from said pipe section, said vapor barrier encasing and adhering to the second surface of said insulation material.
Claim 3
Dependent Claim
24 words
The pipeline system section of claim 1 wherein the first vapor barrier and the second vapor barrier are made of glass reinforced epoxy resin.
Claim 4
Dependent Claim
14 words
The pipeline system section of claim 1 wherein the insulation material is polyurethane foam.
Claim 5
Dependent Claim
22 words
The pipeline system section of claim 1 wherein the first corrugated surface of the first vapor barrier has a generally bellows-shaped configuration.
Claim 6
Dependent Claim
20 words
The pipeline system section of claim 1 wherein the second surface of the first vapor barrier has a corrugated construction.
Claim 7
Dependent Claim
33 words
The pipeline system section of claim 1 wherein said first vapor barrier and said second vapor barrier are fabricated so as to encase insulation material having a hollow cylindrical shape prior to installation.
Claim 8
Dependent Claim
21 words
The pipeline system section to claim 6 wherein each pipe section is surronded by the encased insulation material prior to installation.
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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) | 1990-01-19 | 1990-07-21 | 1991-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-19 | 1994-07-21 | 1995-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-19 | 1998-07-21 | 1999-01-20 | $7700.00 | Window Closed / Lapsed |