US4466778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector device
Assignee: Individual
•
Filing: 1981-11-20
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Granted: 1984-08-21
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Expires: 2001-11-20
Abstract
Abstract An ejector device which has at least two ejectors formed by a corresponding number of axially aligned nozzles of increasing cross section in the direction of flow. The device is formed as a series of modules, each module having a transverse wall and a section of housing. These housing sections abut each other to form chambers between these transverse walls. The transverse walls contain the aligned nozzles and also openings between the chambers with one way valves permitting fluid flow only in the direction of flow through the nozzles. Various arrangements are provided for connecting the housing sections together. A valve arrangement permits selectively eliminating the vacuum in the first chamber.
Inventors
- 👤 Jurgen Volkmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:30
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/14; F04F5/16; F04F5/20; F04F5/22
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
182 words
An ejector device having at least three ejectors formed by a corresponding number of axially aligned, successive nozzles of increasing cross-section in the direction of flow, said device comprising: an outer, elongated housing, a plurality of spaced apart transverse walls extending across the housing to sub-divide it into at least three chambers, each transverse wall containing at least one of said nozzles, a one way valve in each transverse wall other than the first transverse wall permitting fluid flow only in the same direction of flow as through the nozzles, at least one of said chambers including a connecting opening passing radially through said housing, said device being formed of modules, each module containing one of said transverse walls and an axially extending section of the housing which abuts and connects with adjacent housing sections to form the said housing, said housing sections all being of uniform exterior circumferential size and shape with each other to be interchangable, such that the ejector device is constructed by the assembly of any number of said interchangable modules having selected axial lengths and nozzle constructions.
Claim 2
Dependent Claim
182 words
An ejector device having at least three ejectors formed by a corresponding number of axially aligned, successive nozzles of increasing cross-section in the direction of flow, said device comprising: an outer, elongated housing, a plurality of spaced apart transverse walls extending across the housing to sub-divide it into at least three chambers, each transverse wall containing at least one of said nozzles, a one way valve in each transverse wall other than the first transverse wall permitting fluid flow only in the same direction of flow as through the nozzles, at least one of said chambers including a connecting opening passing radially through said housing, said device being formed of modules, each module containing one of said transverse walls and an axially extending section of the housing which abuts and connects with adjacent housing sections to form the said housing, said housing sections all being of uniform exterior circumferential size and shape with each other to be interchangable, such that the ejector device is constructed by the assembly of any number of said interchangable modules having selected axial lengths and nozzle constructions.
Claim 3
Dependent Claim
20 words
An ejector device according to claim 1, including a common connecting means for connecting together all of said housing sections.
Claim 4
Dependent Claim
29 words
An ejector device according to claim 1, wherein the adjacent housing sections are of circular cross-section and include screw threads for screw threading said adjacent housing sections directly together.
Claim 5
Dependent Claim
24 words
An ejector device according to claim 1, wherein within each module, the transverse wall and its respective housing section are separate elements connected together.
Claim 6
Dependent Claim
38 words
An ejector device according to any one of claims 1-4, wherein the housing sections are of different axial lengths, the length of each section corresponding to the desired spacing between its nozzle and the nozzles of adjacent modules.
Claim 7
Dependent Claim
29 words
An ejector device according to any one of claims 1-4, wherein at least some of said chambers include connecting openings passing through said housing sections in a radial direction.
Claim 8
Dependent Claim
22 words
An ejector device according to claim 6, wherein said connecting openings include means for connecting the same to suction devices attached thereto.
Claim 9
Dependent Claim
37 words
An ejector device according to any one of claims 1-4, including at the downstream end of the device, past the last nozzle, a pot-shaped member forming a pressure chamber and provided with at least one blow-out opening.
Claim 10
Dependent Claim
21 words
An ejector device according to claim 8, wherein said blow-out openings include connecting means for connecting nipples or sealing plugs thereto.
Claim 11
Dependent Claim
16 words
An ejector device according to claim 8, including a noise suppression means within the pot-shaped member.
Claim 12
Dependent Claim
78 words
An ejector device according to any one of claims 1-4, including a valve means operatively connected to the inlet side of the first nozzle and also separately to the first chamber, a pressure reservoir connected to said valve, and means for connecting a pressurized supply fluid to the first nozzle, said valve being operable, upon cutting off of pressurized supply fluid to the first nozzle, to connect the first chamber via the valve with the said pressure reservoir.
Claim 13
Dependent Claim
184 words
An ejector device having at least two ejectors formed by a corresponding number of axially aligned, successive nozzles of increasing cross-section in the direction of flow, said device comprising: an outer, elongated housing, a plurality of spaced apart transverse walls extending across the housing to sub-divide it into chambers, each transverse wall containing at least one of said nozzles, a one-way valve in each transverse wall permitting fluid flow only in the same direction of flow as through the nozzles said device being formed of modules, each module containing one of said transverse walls and an axially extending section of the housing which abuts and connects with adjacent housing sections to form the said housing, and including a valve means operatively connected to the inlet side of the first nozzle and also separately to the first chamber, a pressure reservoir connected to said valve, and means for connecting a pressurized supply fluid to the first nozzle, said valve being operable, upon cutting off of pressurized supply fluid to the first nozzle, to connect the first chamber via the valve with the said pressure reservoir.
Claim 14
Dependent Claim
184 words
An ejector device having at least two ejectors formed by a corresponding number of axially aligned, successive nozzles of increasing cross-section in the direction of flow, said device comprising: an outer, elongated housing, a plurality of spaced apart transverse walls extending across the housing to sub-divide it into chambers, each transverse wall containing at least one of said nozzles, a one-way valve in each transverse wall permitting fluid flow only in the same direction of flow as through the nozzles said device being formed of modules, each module containing one of said transverse walls and an axially extending section of the housing which abuts and connects with adjacent housing sections to form the said housing, and including a valve means operatively connected to the inlet side of the first nozzle and also separately to the first chamber, a pressure reservoir connected to said valve, and means for connecting a pressurized supply fluid to the first nozzle, said valve being operable, upon cutting off of pressurized supply fluid to the first nozzle, to connect the first chamber via the valve with the said pressure reservoir.
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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) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |