Patent US3884415A successfully refreshed from Google Patents.
US3884415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation for explosive deposition of inorganic coatings
Assignee: Individual
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Filing: 1974-07-03
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Granted: 1975-05-20
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Expires: 1994-07-03
Abstract
Abstract The installation comprises the tubular-shaped combustion chamber closed at one end and communicated with the proportioner for batchwise feeding a powdered coating material thereinto and with the mixing chamber which feeds through its outlet sleeve and the safety coiler an explosive mixture into the combustion chamber, said explosive, mix, when made to explode, sets up a detonation wave in the combustion chamber to eject the coating material through the open end of said chamber onto the surface of the workpiece under treatment. According to the invention, provided in between the safety coiler and the mixing chamber outlet sleeve is the backfire extinguishing device adapted to operate in case of blowbacks from the combustion chamber into the safety coiler. The device has a hollow housing wherein a porous refractory partition is provided. Such an installation features safety and reliability in operation.
Inventors
- 👤 Anatoly Ivanovich Zverev
- 👤 Mikhail Antonovich Pudzinsky
- 👤 Viktor Ivanovich Shesternenkov
- 👤 Mikhail Pvalovich Dudnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:06
CPC Classifications
F; F42; F42D; F42D3/00; B; B05; B05B; B05B7/00; B05B7/0006; C; C23; C23C; C23C4/00; C23C4/12; C23C4/126
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
201 words
An installation for explosive deposition of inorganic coatings, comprising: a tubular-shaped combustion chamber closed at one end; a proportioner for batchwise feeding a powdered coating material into said combustion chamber; a mixing chamber having inlet sleeves and an outlet sleeve; a safety coiler; said mixing chamber communicated through its inlet sleeves with the sources of the components of an explosive mix and of an inactive gas and through its outlet sleeve and said safety coiler, with said combustion chamber so as to feed said mix thereinto, where the latter is made to explode and thus set up a detonation wave which ejects the coating material through the open end of said chamber onto the surface of the workpiece under treatment; a device for extinguishing the backfire resulting from blowbacks from said combustion chamber into said safety coiler, said device being located between said coiler and the outlet sleeve of said mixing chamber; a hollow housing of said device; a partition made of a porous refractory material and adapted to divide the interior space of said housing of said device into two chambers one of which communicates with said safety coiler and the other, with the outlet sleeve of said mixing chamber.
Claim 2
Dependent Claim
201 words
An installation for explosive deposition of inorganic coatings, comprising: a tubular-shaped combustion chamber closed at one end; a proportioner for batchwise feeding a powdered coating material into said combustion chamber; a mixing chamber having inlet sleeves and an outlet sleeve; a safety coiler; said mixing chamber communicated through its inlet sleeves with the sources of the components of an explosive mix and of an inactive gas and through its outlet sleeve and said safety coiler, with said combustion chamber so as to feed said mix thereinto, where the latter is made to explode and thus set up a detonation wave which ejects the coating material through the open end of said chamber onto the surface of the workpiece under treatment; a device for extinguishing the backfire resulting from blowbacks from said combustion chamber into said safety coiler, said device being located between said coiler and the outlet sleeve of said mixing chamber; a hollow housing of said device; a partition made of a porous refractory material and adapted to divide the interior space of said housing of said device into two chambers one of which communicates with said safety coiler and the other, with the outlet sleeve of said mixing chamber.
Claim 3
Dependent Claim
117 words
An installation as claimed in claim 1, wherein interposed between the backfire extinguishing device and the mixing chamber outlet sleeve is a three-way connector having an open-end axial passage intercommunicating said device with said sleeve and two side passages adapted to alternatively communicate with the source of an inactive gas in the course of installation working process, so as to enable said gas to feed along one of said passages under a pressure high enough to scavenge the safety coiler after said explosive mix has been fed from said mixing chamber into said combustion chamber, and along the other passage to scavenge said coiler together with the combustion chamber after the coating material has been ejected therefrom.
Claim 4
Dependent Claim
30 words
An installation as claimed in claim 1, wherein a flame splitter grate is provided in the housing chamber communicating with the safety coiler, spaced somewhat apart from the partition therein.
Claim 5
Dependent Claim
45 words
An installation as claimed in claim 3, wherein the housing is cylinder-shaped, while the grate is made as a disk coaxial thereto and provided with open-end calibrated apertures spread over the entire surface thereof along its chords parallel to and spaced equidistantly from one another.
Claim 6
Dependent Claim
17 words
An installation as claimed in claim 1, wherein said partition is made of a porous cermet material.
References Cited (Backward Citations)
US3150828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |