US3828930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter screen installation
Assignee: Taprogge L Cleaning Installations for Pipe Heating Exchanger
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Filing: 1973-05-25
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Granted: 1974-08-13
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Expires: 1993-05-25
Abstract
Abstract A filtering device is described for separating solid impurities from a liquid stream in a pipeline of the shell filter type used in cooling lines of power plants. An adjusting valve is pivotally arranged in the inlet connection to the device in such a manner that the liquid stream flows in a swirling stream around a cylindrical filter screen basket thereby removing deposited solids from the surface of the filter.
Inventors
- 👤 K Eimer
- 👤 H Thal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:46
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/114; B01D29/115; B01D21/00; B01D21/0012; B01D21/26; B01D21/267; B01D21/30; B01D21/34; B01D29/88; B01D29/90; B01D29/902; B01D29/908; B01D2201/00; B01D2201/28; B01D2201/287
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A filtering installation for separating solids from liquid streams in pipelines comprising a cylindrical separator housing means, a cylindrical filtering means disposed within said separator housing means, radial inlet pipe connection means disposed at a peripheral surface of said separator housing means for introducing a liquid stream carrying solids into said separator housing means, an outlet pipe connection means disposed axially adjacent an end of said cylindrical filtering means for discharging said liquid stream after passing through said cylindrical filtering means, a discharge means connected to said separator housing means for discharging solids separated from said liquid stream by said cylindrical filtering means, and valve means pivotally arranged in said inlet pipe connection means for adjusting the flow of said introduced liquid stream, said valve means having baffle elements secured at a spacing from both sides of a valve element with said baffle element and said valve element being pivotable together.
Claim 2
Dependent Claim
151 words
A filtering installation for separating solids from liquid streams in pipelines comprising a cylindrical separator housing means, a cylindrical filtering means disposed within said separator housing means, radial inlet pipe connection means disposed at a peripheral surface of said separator housing means for introducing a liquid stream carrying solids into said separator housing means, an outlet pipe connection means disposed axially adjacent an end of said cylindrical filtering means for discharging said liquid stream after passing through said cylindrical filtering means, a discharge means connected to said separator housing means for discharging solids separated from said liquid stream by said cylindrical filtering means, and valve means pivotally arranged in said inlet pipe connection means for adjusting the flow of said introduced liquid stream, said valve means having baffle elements secured at a spacing from both sides of a valve element with said baffle element and said valve element being pivotable together.
Claim 3
Dependent Claim
42 words
A filtering installation according to claim 1, wherein said cylindrical filtering means is a cylindrical mesh screen basket with one end secured to a housing lid of said separator housing means and on opposite end connected to said outlet pipe connection means.
Claim 4
Dependent Claim
21 words
A filtering installation according to claim 2, wherein said cylindrical filtering means is concentrically disposed within said cylindrical separator housing means.
Claim 5
Dependent Claim
21 words
A filtering installation according to claim 1, wherein said cylindrical filtering means is concentrically disposed within said cylindrical separator housing means.
Claim 6
Dependent Claim
20 words
A filtering installation according to claim 1, wherein said baffle elements and said valve element are approximately the same size.
Claim 7
Dependent Claim
33 words
A filtering installation according to claim 5, wherein said baffle elements are spaced from said valve element at a distance corresponding to approximately one-half the radius of said radial inlet pipe connection means.
Claim 8
Dependent Claim
33 words
A filtering installation according to claim 1, wherein said baffle elements are spaced from said valve element at a distance corresponding to approximately one-half the radius of said radial inlet pipe connection means.
Claim 9
Dependent Claim
25 words
A filtering installation according to claim 1, wherein said baffle elements converge in a direction toward separator housing means in the form of a nozzle.
Claim 10
Dependent Claim
31 words
A filtering installation according to claim 1, wherein said inlet pipe connection means flares at said peripheral surface of said separator housing means with a flaring angle of at least 15*.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |