US3877488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venturi scrubber expansion joint
Assignee: Dorr Oliver Inc
•
Filing: 1973-01-02
•
Granted: 1975-04-15
•
Expires: 1993-01-02
Abstract
Abstract A water-seal expansion joint is located proximate the throat of a venturi scrubber and a flow of sealant water is permitted into the venturi throat region.
Inventors
- 👤 Allen Baturay
- 👤 Harold W Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:10
CPC Classifications
F; F16; F16L; F16L51/00; Y; Y10; Y10S; Y10S261/00; Y10S261/54; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4643; Y10T137/4658; Y10T137/4666
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
170 words
A water-seal expansion joint in a vertically oriented venturi scrubber, said scrubber having an upper convergent inlet section and a lower divergent outlet section and a throat region therebetween, the said sections having cooperating cylindrical throat elements which overlap in said throat region but are not in contact, said inlet section having a weir sealed thereto and in spaced surrounding relation to said inlet throat element, said outlet throat element surrounding and spaced from said inlet throat element and positioned between said inlet throat element and said weir, an annular sealing channel located about the end of said outlet throat element and defined by an outer sealing wall, said outlet throat element and a bottom wall, said outer sealing wall being generally concentric with said weir, said weir extending into the channel short of said bottom wall to divide said annular channel into an inner compartment in communication with said venturi throat region and an outer compartment which is exposed to atmospheric pressure, the said compartments being in fluid communication.
Claim 2
Dependent Claim
170 words
A water-seal expansion joint in a vertically oriented venturi scrubber, said scrubber having an upper convergent inlet section and a lower divergent outlet section and a throat region therebetween, the said sections having cooperating cylindrical throat elements which overlap in said throat region but are not in contact, said inlet section having a weir sealed thereto and in spaced surrounding relation to said inlet throat element, said outlet throat element surrounding and spaced from said inlet throat element and positioned between said inlet throat element and said weir, an annular sealing channel located about the end of said outlet throat element and defined by an outer sealing wall, said outlet throat element and a bottom wall, said outer sealing wall being generally concentric with said weir, said weir extending into the channel short of said bottom wall to divide said annular channel into an inner compartment in communication with said venturi throat region and an outer compartment which is exposed to atmospheric pressure, the said compartments being in fluid communication.
Claim 3
Dependent Claim
27 words
The water-seal expansion joint of claim 1 having means for providing a continuous flow of water through said annular channel and discharging into said venturi throat region.
Claim 4
Dependent Claim
29 words
The water-seal expansion joint of claim 2 wherein said outer compartment can accommodate a higher water level than said inner compartment to balance pressure fluctuations in said throat region.
Claim 5
Dependent Claim
127 words
A water-seal expansion joint in a vertically oriented venturi scrubber, said venturi scrubber comprising a conical inlet section and a conical outlet section for conducting gases under treatment, said water-seal expansion joint comprising a venturi throat region between said inlet and outlet sections having an inlet throat conduit connected to the conical inlet section and an outlet throat conduit connected to the conical outlet section, said inlet throat conduit extending into without contacting said outlet throat conduit, a water-filled channel surrounding the end of said outlet throat conduit, a weir concentrically mounted with respect to said inlet conduit on said conical inlet section and extending into said channel to a level below the surface of the water in said channel but above the bottom of the channel.
Claim 6
Dependent Claim
127 words
A water-seal expansion joint in a vertically oriented venturi scrubber, said venturi scrubber comprising a conical inlet section and a conical outlet section for conducting gases under treatment, said water-seal expansion joint comprising a venturi throat region between said inlet and outlet sections having an inlet throat conduit connected to the conical inlet section and an outlet throat conduit connected to the conical outlet section, said inlet throat conduit extending into without contacting said outlet throat conduit, a water-filled channel surrounding the end of said outlet throat conduit, a weir concentrically mounted with respect to said inlet conduit on said conical inlet section and extending into said channel to a level below the surface of the water in said channel but above the bottom of the channel.
References Cited (Backward Citations)
US725937A
Cited
US1005751A
Cited
US1634982A
Cited
US3009716A
Cited
US3075753A
Cited
US3368578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |