US4089122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise attenuation during steam blowing of coated tubes
Assignee: Vodafone GmbH
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Filing: 1975-09-16
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Granted: 1978-05-16
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Expires: 1995-09-16
Abstract
Abstract Zinc coated tubes are cleaned by means of steam, and the zinc residue -- steam mixture is blown into a nozzle which is heated, and discharged into a noise attenuation chamber; the latter discharges into an expansion chamber, which in turn discharges into a filter. The mixture is diluted in the attenuation chamber by air sucked in from the outside along a tortuous path.
Inventors
- 👤 Karl Gust
- 👤 Albert Hankel
- 👤 Horst Hasenclever
- 👤 Eberhard Titze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:52
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16; G10K11/161; C; C23; C23C; C23C2/00; C23C2/14; C23C2/16; C23C2/18; C23C2/185
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
95 words
In a device for blowing plated tubes by means of steam for purposes of cleaning the interior of such a tube from residue of th plating material, comprising: first means defining a noise attentuation chamber with entrance to be placed in engagement with one end of the tube through which the blown steam discharges; second means defining an expansion chamber disposed in relation to the noise attenuation chamber to receive therefrom the steam for collecting larger particles in the steam; and filter means connected to the means defining an expansion chamber to clean said steam.
Claim 2
Dependent Claim
95 words
In a device for blowing plated tubes by means of steam for purposes of cleaning the interior of such a tube from residue of th plating material, comprising: first means defining a noise attentuation chamber with entrance to be placed in engagement with one end of the tube through which the blown steam discharges; second means defining an expansion chamber disposed in relation to the noise attenuation chamber to receive therefrom the steam for collecting larger particles in the steam; and filter means connected to the means defining an expansion chamber to clean said steam.
Claim 3
Dependent Claim
19 words
In a device as in claim 1 and including fourth means for heating the steam in the attenuation chamber.
Claim 4
Dependent Claim
31 words
In a device as in claim 2, wherein the fourth means include a heater and means for conducting air as heated by the heater into the interior of the attenuation chamber.
Claim 5
Dependent Claim
19 words
In a device as in claim 1 and including means for diluting the steam in the noise attenuation chamber.
Claim 6
Dependent Claim
30 words
In a device as in claim 4, the means for diluting including air passage-ways into the attenuation chamber at a cross-section adapted to correspond to the cross-section of the tube.
Claim 7
Dependent Claim
28 words
In a device as in claim 1, the first means including a receiver nozzle with funnel-shaped entrance and a passage-way terminating in the interior of the attenuation chamber.
Claim 8
Dependent Claim
17 words
In a device as in claim 6, said passageway having the same inner diameter as the tube.
Claim 9
Dependent Claim
20 words
In a device as in claim 6, the passageway being surrounded by ducts for feeding air into the said interior.
Claim 10
Dependent Claim
15 words
In a device as in claim 8, said ducts being annularly arranged around said passage-way.
Claim 11
Dependent Claim
45 words
In a device as in claim 8 and including heating means in front of the duct to heat the air which in turn heats the passage-way to a temperature in excess of the solidifying temperature of the plating material entrained in the steam as blown.
Claim 12
Dependent Claim
22 words
In a device as in claim 1, said first means being movably disposed for moving towards and away from said tube end.
Claim 13
Dependent Claim
22 words
In a device as in claim 1, said first means including a sound absorbing wall circumscribing the interior of the attenuation chamber.
Claim 14
Dependent Claim
26 words
In a device as in claim 1, wherein said second means is constructed for baffle action to remove larger size residue as entrained from the steam.
Claim 15
Dependent Claim
29 words
In a device as in claim 1, said first means including a labyrinth structure for sucking air into its interior for diluting the steam as discharged from the tube.
Claim 16
Dependent Claim
26 words
In a device as in claim 14, the cross-section of said labyrinth structure as sucking air having the same area as the cross-section of the tube.
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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |