US3640499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Register construction for closing off circular-cylindrical flow ducts
Assignee: Hitachi Zosen Inova Steinmueller GmbH
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Filing: 1969-12-10
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Granted: 1972-02-08
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Expires: 1989-12-10
Abstract
Abstract A register construction for closing off circular-cylindrical flow ducts includes a flexible cylindrical insert of a relatively thin material such as sheet metal or plastic which is mounted at one end to an annular flange which is secured to the flow duct and which includes an inner dimension which is slightly smaller than the duct with which it is to be associated. A circular flat plate valve or register member is pivotally mounted within the insert and the flow duct in a manner which permits it to be moved to close off the full area of the insert. The inner circumference of the insert is made slightly smaller than the circumference of the rotary plate so that in a closed position a formtight closure between the plate and the insert is obtained to close off all fluid flow through the duct.
Inventors
- 👤 Richard Jung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:16
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; F16K1/2263; F16K1/2265; F16L; F16L55/00; F16L55/10; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/1406
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
183 words
A valve assembly including a flow duct of circularly cylindrical form, an insert of circularly cylindrical form within said flow duct being of a deformable material, means at each end of said insert for maintaining said insert in spaced relationship with the interior of said duct including a ring portion carried at one end of said insert and extending radially outwardly into fixed engagement with said flow duct adjacent one end of said insert and a bead formation at the opposite end of said insert extending radially outwardly therefrom into engagement with said duct wall adjacent the opposite end, a flat substantially cylindrical plate valve, a journal on said plate valve at diametrically opposite locations, bearing means defined on said duct rotatably supporting said journals, said plate valve being arranged within said insert intermediate its length and being of a circumference which is slightly greater than the interior circumference of said insert, whereby when said plate valve is rotated to a position transverse to the flow direction its circumferential portion deforms and tightly engages with said insert to finally close the flow duct.
Claim 2
Dependent Claim
183 words
A valve assembly including a flow duct of circularly cylindrical form, an insert of circularly cylindrical form within said flow duct being of a deformable material, means at each end of said insert for maintaining said insert in spaced relationship with the interior of said duct including a ring portion carried at one end of said insert and extending radially outwardly into fixed engagement with said flow duct adjacent one end of said insert and a bead formation at the opposite end of said insert extending radially outwardly therefrom into engagement with said duct wall adjacent the opposite end, a flat substantially cylindrical plate valve, a journal on said plate valve at diametrically opposite locations, bearing means defined on said duct rotatably supporting said journals, said plate valve being arranged within said insert intermediate its length and being of a circumference which is slightly greater than the interior circumference of said insert, whereby when said plate valve is rotated to a position transverse to the flow direction its circumferential portion deforms and tightly engages with said insert to finally close the flow duct.
Claim 3
Dependent Claim
30 words
An assembly according to claim 1, including means for sealing said ring to said duct at the upstream end of said insert, said bead being located at the downstream end.
Claim 4
Dependent Claim
28 words
An assembly according to claim 1, wherein said ring is connected around the periphery of said insert and extends through said duct and is welded to said duct.
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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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |