US3907170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for application of powderlike material onto lining or surface of structure
Assignee: Individual
•
Filing: 1973-07-09
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Granted: 1975-09-23
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Expires: 1993-07-09
Abstract
Abstract A machine for the application of powderlike material onto lining or surface of a structure, wherein an outlet chamber of a screw feeder and a receiving chamber of a manipulator shaft are fashioned as jet pumps in which the powderlike material serves as the medium being pumped and compressed air - as the conveying medium.
Inventors
- 👤 Ivan Vasilievich Schedrin
- 👤 Vladimir Ilich Shakhlin
- 👤 Anatoly Samuilovic Freidenberg
- 👤 Gennady Elizarovic Ovchinnikov
- 👤 Alexei Grigorievich Trifonov
- 👤 Fedor Timofeevich Melnikov
- 👤 Andrei Dmitrievich Filatov
- 👤 Vladimir Fedorovich Gazhur
- 👤 Timofei Grigorievich Shunin
- 👤 Mikhail Moiseevich Privalov
- 👤 Anatoly Ivanovich Konovalov
- 👤 Andrei Lvovic Garyaev
- 👤 Administrator By Nina Garyaev
- 👤 Administrator By Mari Garyaeva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:05
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B7/1431
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
320 words
A machine for the application of powderlike material onto the lining or surfaces of a structure, comprising: a hopper for powderlike material; a screw feeder arranged below said hopper and having an outlet; an outlet chamber coaxially arranged at the outlet of said feeder and constituting a jet pump in which the medium being pumped is the powderlike material supplied from said screw feeder and the conveying medium is compressed air; means for feeding compressed air to said jet pump, nozzles in said outlet chamber, said nozzles being connected to the means which feeds compressed air, said outlet chamber having a longitudinal axis in the direction of which said powderlike material is supplied, said nozzles being arranged at an acute angle with respect to said longitudinal axis; a manipulator shaft; said manipulator shaft having a receiver chamber with a longitudinal axis, means connecting said receiver chamber to said outlet chamber, said receiver chamber of the manIpulator shaft being constituted as a jet pump in which the medium being pumped is the powderlike material supplied from said outlet chamber of the feeder and the conveying medium is compressed air; means for feeding compressed air to the receiver chamber of the manipulator shaft as said conveying medium and comprising a straight tubular conduit mounted within the receiver chamber of the manipulator shaft and extending along the axis of said receiver chamber to the rear end thereof, and an inlet for compressed air at the rear end of said tubular conduit, the powderlike material supplied from the outlet chamber of the feeder flowing around said straight conduit for the compressed air, a second tubular conduit coaxially mounted within the first tubular conduit and extending therealong to the rear end of the receiver chamber, and means at said rear end of the tubular conduit for feeding to said second conduit a fluid serving as a moistening and additional conveying medium for said powderlike material.
Claim 2
Dependent Claim
320 words
A machine for the application of powderlike material onto the lining or surfaces of a structure, comprising: a hopper for powderlike material; a screw feeder arranged below said hopper and having an outlet; an outlet chamber coaxially arranged at the outlet of said feeder and constituting a jet pump in which the medium being pumped is the powderlike material supplied from said screw feeder and the conveying medium is compressed air; means for feeding compressed air to said jet pump, nozzles in said outlet chamber, said nozzles being connected to the means which feeds compressed air, said outlet chamber having a longitudinal axis in the direction of which said powderlike material is supplied, said nozzles being arranged at an acute angle with respect to said longitudinal axis; a manipulator shaft; said manipulator shaft having a receiver chamber with a longitudinal axis, means connecting said receiver chamber to said outlet chamber, said receiver chamber of the manIpulator shaft being constituted as a jet pump in which the medium being pumped is the powderlike material supplied from said outlet chamber of the feeder and the conveying medium is compressed air; means for feeding compressed air to the receiver chamber of the manipulator shaft as said conveying medium and comprising a straight tubular conduit mounted within the receiver chamber of the manipulator shaft and extending along the axis of said receiver chamber to the rear end thereof, and an inlet for compressed air at the rear end of said tubular conduit, the powderlike material supplied from the outlet chamber of the feeder flowing around said straight conduit for the compressed air, a second tubular conduit coaxially mounted within the first tubular conduit and extending therealong to the rear end of the receiver chamber, and means at said rear end of the tubular conduit for feeding to said second conduit a fluid serving as a moistening and additional conveying medium for said powderlike material.
Claim 3
Dependent Claim
32 words
A machine as set forth in claim 1 comprising a common manifold for the compressed air feed means to said outlet chamber and the compressed air feed means to the receiver chamber.
Claim 4
Dependent Claim
37 words
A machine as set forth in claim 2 further comprising a vibration means coupled to said hopper for vibrating the same, said vibration means being coupled to said common manifold to be actuated by compressed air therefrom.
Claim 5
Dependent Claim
23 words
A machine as set forth in claim 1 wherein said means connecting said receiver chamber to said outlet chamber comprises a flexible hose.
Claim 6
Dependent Claim
42 words
A machine as set forth in claim 4 wherein said outlet chamber has an outlet end and includes a portion which conically tapers in narrowing fashion from said screw feeder to said outlet end, said hose being connected to said outlet end.
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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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |