US3563571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aseptic joints
Assignee: ATI Ladish Co Inc
•
Filing: 1969-07-09
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Granted: 1971-02-16
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Expires: 1989-07-09
Abstract
Abstract An aseptic joint has a sealing gasket interposed between the flanges of two pipe ends, there being a rubber ring around the gasket to form an annular steam chamber between the rubber ring and the OD of the gasket, and there being means including a steam inlet and outlet nipple with a dam between for continuously circulating steam throughout the length of the steam chamber. A clamping ring acts on the flanges of the two pipe ends to engage the gasket and rubber ring therebetween, the clamping ring having a slot through which the steam nipple projects.
Inventors
- 👤 Bruno H Werra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:33
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/16; F16L23/04; F16L23/08; F16L23/10; F16L2201/00; F16L2201/40; F16L2201/44
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
In a pipe line having adjacent end portions located at a joint, said end portions having outwardly projecting annular flanges, a ring-shaped gasket between and sealingly engaging said flanges, means at said joint forming an annular steam chamber between said flange and gasket, means for circulating steam through said chamber, said chamber being so positioned around the joint that bacteria entering the joint from the exterior are sterilized by steam before they can pass the gasket to enter the interior of the pipe line, and means for detachably maintaining the parts in assembled condition at said joint.
Claim 2
Dependent Claim
97 words
In a pipe line having adjacent end portions located at a joint, said end portions having outwardly projecting annular flanges, a ring-shaped gasket between and sealingly engaging said flanges, means at said joint forming an annular steam chamber between said flange and gasket, means for circulating steam through said chamber, said chamber being so positioned around the joint that bacteria entering the joint from the exterior are sterilized by steam before they can pass the gasket to enter the interior of the pipe line, and means for detachably maintaining the parts in assembled condition at said joint.
Claim 3
Dependent Claim
50 words
An assemblage as claimed in claim 1 in which the outside diameter of the gasket is less than the outside diameter of the flanges to leave an annular space between outer portions of the flanges, and wherein means which forms the annular steam chamber is located in said annular space.
Claim 4
Dependent Claim
68 words
An assemblage as claimed in claim 2 in which the means which forms the annular steam chamber is a flexible ring having spaced annular side faces, and in which said flexible ring is located in said annular space with the side faces of the flexible ring against the flanges of the pipe ends, the steam chamber being between the flexible ring and the outside diameter of the gasket.
Claim 5
Dependent Claim
46 words
An assemblage as claimed in claim 3 in which the outside diameter of the flexible ring is bonded to a wider metal ring having annular portions on each side of the flexible ring which seat against the outer peripheries of the flanges of the pipe ends.
Claim 6
Dependent Claim
25 words
An assemblage as claimed in claim 3 in which the flexible ring has an outwardly projecting nipple having inlet and outlet passageways for the steam.
Claim 7
Dependent Claim
39 words
An assemblage as claimed in claim 4 in which the flexible ring has an outwardly projecting nipple having inlet and outlet passageways for the steam, and in which said metal band has a slot through which the nipple projects.
Claim 8
Dependent Claim
59 words
An assemblage as claimed in claim 1 in which the opposed faces of the flanges of the pipe ends have circular grooves, and in which the gasket has circular ribs of such size and so positioned as to fit within the grooves while maintaining the internal diameter of the gasket flush with The internal diameter of the pipe line.
Claim 9
Dependent Claim
64 words
An assemblage as claimed in claim 3 in which the means for detachably maintaining the parts in assembled condition is a clamping ring which coacts with the flanges of the pipe ends, said ring having a slot, and in which the flexible ring has a nipple which projects through the slot of said clamping ring, said nipple having outlet and inlet passageways for steam.
Claim 10
Dependent Claim
58 words
An assemblage as claimed in claim 2 in which there is a dam across the annular steam chamber, and in which the means for circulating steam through said chamber includes an inlet communicating with the steam chamber on one side of the dam and an outlet communicating with the steam chamber on the other side of the dam.
Claim 11
Dependent Claim
40 words
An assembled as claimed in claim 2 in which the gasket is formed of a relatively hard, slightly flexible material, and in which the means which forms the annular steam chamber is formed of a relatively flexible, resilient rubberlike material.
References Cited (Backward Citations)
US1951677A
Cited
DE1000649B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |