US3734546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible pipe connection
Assignee: Lockheed Martin Corp
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Filing: 1972-03-30
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Granted: 1973-05-22
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Expires: 1992-03-30
Abstract
Abstract A flexible pipe connection configured to prevent the transmission of sounds produced in the pipeline. The joint has an annular housing and a nipple member partially submerged in the housing. The housing and nipple are connected by two elastomeric seal assemblies which provide flexibility and sound isolation between the housing and the nipple member.
Inventors
- 👤 J Herbert
- 👤 P Sullivan
- 👤 S Vitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:52
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/103; Y; Y10; Y10S; Y10S277/00; Y10S277/916
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
212 words
A flexible, sound isolation joint for pipelines comprising: an annular housing with a central cavity; a nipple partially submerged in said cavity; a flared end on the submerged portion of the nipple; a first annular, elastomeric seal assembly being disposed interiorly of said flared end and bridging said nipple and housing to provide a constant inside diameter for said joint; said first seal assembly having an inner ring in a slip fit with said housing, an outer ring in contact with the flared end of the nipple, and an elastomeric ring between said inner and outer rings, said inner ring having an opening to provide fluid passage between the joint interior and the central cavity; a second annular, elastomeric seal assembly being disposed exteriorly of said flared end and closing said central cavity; said second seal assembly having a collar in a slip fit with the flared end of the nipple, a flange member in contact with the housing, and a reinforced elastomeric member between the collar and the flange member; said seal assemblies having a common center of rotation in the longitudinal axis of said joint to provide omnidirectional flexure movement of said nipple with respect to said housing; and means for retaining said seal assemblies with respect to the housing.
Claim 2
Dependent Claim
212 words
A flexible, sound isolation joint for pipelines comprising: an annular housing with a central cavity; a nipple partially submerged in said cavity; a flared end on the submerged portion of the nipple; a first annular, elastomeric seal assembly being disposed interiorly of said flared end and bridging said nipple and housing to provide a constant inside diameter for said joint; said first seal assembly having an inner ring in a slip fit with said housing, an outer ring in contact with the flared end of the nipple, and an elastomeric ring between said inner and outer rings, said inner ring having an opening to provide fluid passage between the joint interior and the central cavity; a second annular, elastomeric seal assembly being disposed exteriorly of said flared end and closing said central cavity; said second seal assembly having a collar in a slip fit with the flared end of the nipple, a flange member in contact with the housing, and a reinforced elastomeric member between the collar and the flange member; said seal assemblies having a common center of rotation in the longitudinal axis of said joint to provide omnidirectional flexure movement of said nipple with respect to said housing; and means for retaining said seal assemblies with respect to the housing.
Claim 3
Dependent Claim
34 words
A joint according to claim 1, wherein an O-ring is provided between the inner ring and the housing and an O-ring is provided between the outer ring and the flared end of the nipple.
Claim 4
Dependent Claim
34 words
A joint according to claim 1, wherein said retaining means comprise an extension of said flange member abutting against the end of said housing and fastener means holding said extension and said housing end.
Claim 5
Dependent Claim
29 words
A joint according to claim 1, wherein said retaining means comprises a retaining ring cooperating with said flange member, said ring being adapted to be threaded onto said housing.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |