US3722544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic conveying system
Assignee: Individual
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Filing: 1971-04-07
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Granted: 1973-03-27
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Expires: 1991-04-07
Abstract
Abstract A pneumatic conveying system has a receptacle provided with at least two apertures having inclined axes. A first tubular element is seal-tightly mounted in one of the apertures and a portion which may be of one piece with or separate from the remainder of said first tubular element - surrounds the aperture in the interior of the receptacle. A second tubular element is also seal-tightly mounted in the other of these apertures. It includes one tubular member of a larger diameter and an inner end portion of which - of one piece with or separate from the remainder of the one tubular member - surrounds the aperture in the interior of the receptacle, whereas the outer end portion of this one tubular member has a transverse wall provided with an opening. Another tubular member of a smaller diameter has an inner end portion - again either of one piece with or separate from the remainder from the other tubular member - which interiorly surrounds the opening in the transverse wall.
Inventors
- 👤 M Westenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:48
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/52; B65G53/523
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
193 words
In a pneumatic conveying system for abrasive materials, in combination, a receptacle having an internal dimension and at least two apertures whose axes are inclined with reference to each other; a first tubular element extending seal-tightly into one of said apertures and having a first internal diameter smaller than said internal dimension, an outer end portion adapted to receive a particle-carrying gas stream, and an inner end portion extending through said one aperture into the interior of said receptacle; and a second tubular element, comprising one tubular member of a second internal diameter which is also smaller than said internal dimension, said one tubular member extending seal-tightly into the other of said apertures and having an interior End portion located in the interior of said receptacle and adapted to receive said particle-carrying gas stream, and an exterior end portion provided with a transverse wall having an opening, said second tubular element further comprising an other tubular member of a third diameter smaller than said second diameter and extending seal-tightly into said opening and having an upstream end portion located in the interior of said one tubular member, and a remote downstream end portion.
Claim 2
Dependent Claim
193 words
In a pneumatic conveying system for abrasive materials, in combination, a receptacle having an internal dimension and at least two apertures whose axes are inclined with reference to each other; a first tubular element extending seal-tightly into one of said apertures and having a first internal diameter smaller than said internal dimension, an outer end portion adapted to receive a particle-carrying gas stream, and an inner end portion extending through said one aperture into the interior of said receptacle; and a second tubular element, comprising one tubular member of a second internal diameter which is also smaller than said internal dimension, said one tubular member extending seal-tightly into the other of said apertures and having an interior End portion located in the interior of said receptacle and adapted to receive said particle-carrying gas stream, and an exterior end portion provided with a transverse wall having an opening, said second tubular element further comprising an other tubular member of a third diameter smaller than said second diameter and extending seal-tightly into said opening and having an upstream end portion located in the interior of said one tubular member, and a remote downstream end portion.
Claim 3
Dependent Claim
26 words
In a pneumatic conveying system as defined in claim 1, wherein said inner endportion is of one piece with the remainder of said first tubular member.
Claim 4
Dependent Claim
26 words
In a pneumatic conveying system as defied in claim 1, wherein said upstream endportion is of one piece with the remainder of said other tubular member.
Claim 5
Dependent Claim
17 words
In a pneumatic conveying system as defined in claim 1, wherein said receptacle is of cylindrical configuration.
Claim 6
Dependent Claim
35 words
In a pneumatic conveying system as defined in claim 1, said outer endportion and said downstream endportion each having a flange adapted to be connected to a supply conduit and to a removal conduit, respectively.
Claim 7
Dependent Claim
69 words
In a pneumatic conveying system as defined in claim 1, said receptacle having an additional aperture whose axis is inclined with reference to the axis of said one aperture; further comprising an additional tubular element similar to said second tubular element and seal-tightly connected with said additional aperture; and means for selectively blocking and unblocking the interior endportions of said second tubular element and said additional tubular element, respectively.
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |