US4243616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air diffuser
Assignee: Parkson Corp
•
Filing: 1979-02-15
•
Granted: 1981-01-06
•
Expires: 1999-02-15
Abstract
Abstract Diffuser apparatus comprises a frame including end portions interconnected by and integrated with an elongate intermediate portion. The intermediate portion is formed to produce a longitudinally extended trough, preferably of generally hemi-cylindrical configuration. The diffuser sleeve which mounts about and the length of the frame is longer than the frame and its excess length is used to provide reversibly bent extremities which produce a double layer of the sleeve thickness in areas thereof which overlie the frame end portions. The latter have circumferentially and longitudinally spaced ribs to which the double layered sleeve end portions are clamped to produce a positive and insured seal as between the sleeve and the frame at their end portions. One end portion of the frame has a through bore outwardly extended by an integral adapter to which a line connected to a source of fluid under pressure may be directly coupled. The discharge end of the bore which is innermost of the frame is intersected by aerodynamically shaped partitions arranged to smoothly divide a pressured flow of fluid into small jets which exit from the end portion to the chamber bounded by the sleeve and the intermediate trough-shaped portion of the frame. The surface in which the discharge end of the bore lies is inclined to and away from the base of the trough portion of the frame and mounts a reed type valve element a tongue-like portion of which depends over the inclined surface and the edges of the partitions in the bore which are innermost of the frame. The arrangement is such to insure an automatic seal of the bore in absence of the flow through the bore of fluid under a predetermined pressure.
Inventors
- 👤 Ronald Wyss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:50
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; C02F3/201; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23124; B01F23/23126; B01F23/231265; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
185 words
Diffuser apparatus comprising a frame including end portions interconnected by and integrated with an elongate intermediate portion, said frame being adapted to mount a diffuser sleeve, said intermediate portion of said frame being reduced as to its cross sectional area as compared to that of said end portions so that in application of a sleeve to said frame it will define therewith a diffuser chamber, one of said end portions having an inlet passage for directing air under pressure to the diffuser chamber, the discharge end of which inlet passage is bridged by means forming a plurality of discharge openings which in the operative function of said apparatus are continuously open and arranged to produce a discharge therefrom of the air under pressure in a plurality of jet-like streams, the most adjacent ends of said end portions of said frame including facing surfaces one of which embodies the discharge extremities of said plurality of discharge openings and is oriented to incline to and outwardly from said intermediate portion of said frame and away from the facing surface of the remote end portion of said frame.
Claim 2
Dependent Claim
185 words
Diffuser apparatus comprising a frame including end portions interconnected by and integrated with an elongate intermediate portion, said frame being adapted to mount a diffuser sleeve, said intermediate portion of said frame being reduced as to its cross sectional area as compared to that of said end portions so that in application of a sleeve to said frame it will define therewith a diffuser chamber, one of said end portions having an inlet passage for directing air under pressure to the diffuser chamber, the discharge end of which inlet passage is bridged by means forming a plurality of discharge openings which in the operative function of said apparatus are continuously open and arranged to produce a discharge therefrom of the air under pressure in a plurality of jet-like streams, the most adjacent ends of said end portions of said frame including facing surfaces one of which embodies the discharge extremities of said plurality of discharge openings and is oriented to incline to and outwardly from said intermediate portion of said frame and away from the facing surface of the remote end portion of said frame.
Claim 3
Dependent Claim
26 words
Diffuser apparatus as in claim 1 wherein both said end surfaces are inclined and diverge away and facing in a sense outwardly from said intermediate portion.
Claim 4
Dependent Claim
63 words
Diffuser apparatus as in claim 1 including a reed type flapper serving as a valving element connected to said one of said facing surfaces to have one end anchored thereto and a free end portion arranged inherently to overlie and seal said plurality of discharge openings in absence of a flow of fluid through said inlet passage under a predetermined level of pressure.
Claim 5
Dependent Claim
28 words
Diffuser apparatus as in any one of claims 1 and 3 wherein said intermediate portion is arcuate in cross section and the arcuate extent thereof is approximately 180°.
Claim 6
Dependent Claim
83 words
Diffuser apparatus as in any one of claims 1 and 3 wherein said frame mounts a diffuser sleeve the end portions of which are fixed in sealing relation to and peripherally of said frame end portions, said frame end portions being formed with circumferentially extending rib means within the portions of said sleeve which are fixed and said sleeve is provided with a multitude of normally sealed microscopic ruptures limited, as to their location, to the area thereof intermediate said frame end portions.
Claim 7
Dependent Claim
119 words
Diffuser apparatus as in claim 1 wherein said frame mounts a diffuser sleeve, said sleeve is longer than said frame and the excess length thereof is divided to be at both ends of said frame and the portion of said excess at each end of the frame is in each case folded back on and over adjacent portions of said sleeve which overlap and peripherally encompass said end portions of the frame, which embody therein peripherally arranged relatively projected rib means, and clamps are applied over the folded extremities of the sleeve to seal them to said frame and about the rib means thereof to prevent leakage to or from the chamber defined between the sleeve and said frame.
Claim 8
Dependent Claim
36 words
Diffuser apparatus as in claim 6 wherein said intermediate portion of said frame has longitudinally spaced drain holes and said sleeve is imperforate at locations outward of said intermediate portion of said frame, which it bounds.
Claim 9
Dependent Claim
81 words
Diffuser apparatus as in claim 7 wherein in use of said apparatus said intermediate portion of said frame is lowermost and said inlet passage is a bore the discharge end of which is bridged by intersecting partitions to produce said discharge openings which produce in turn said jet-like streams and the entrance end of said bore is extended by an adapter integral with said frame serving as means to which a supply line for air under pressure can be directly coupled.
Claim 10
Dependent Claim
129 words
Diffuser apparatus as in claim 1 wherein said frame is a one piece structure which embodies means for direct coupling thereto of a line for furnishing fluid under pressure and mounts a diffuser sleeve the end portions of which are clamped to the frame end portions, said frame end portions have longitudinally spaced circumferential ribs to which the sleeve end portions are sealingly clamped, and the adjacent end surfaces of said end portions are inclined at a 45° angle to the bottom of said intermediate portion, which is trough shaped and provided at its interior surface with ribs which extend from one of said facing surfaces substantially one half the length of said intermediate portion, and said facing surfaces are inclined at an approximately 45° angle to said trough.
Claim 11
Dependent Claim
40 words
Apparatus as in claim 9 wherein in use thereof said intermediate portion is lowermost and a reed type valve overlies the discharge end of said inlet passage so arranged as to effect a seal of said discharge end by gravity.
Claim 12
Dependent Claim
53 words
Diffuser apparatus according to claim 1 including gravity responsive means controlling flow through said discharge openings, said gravity responsive means tending normally to close said discharge openings and responding to the pressure of air applied in said inlet passage to clear said gravity responsive means and provide that said discharge openings are unobstructed.
Claim 13
Dependent Claim
203 words
Diffuser apparatus comprising a unitary frame presenting longitudinally spaced apart end portions and an interconnecting trough-like portion, said frame being adapted to mount a diffuser sleeve forming with said end portions and said trough-like portion a diffuser chamber, means for admitting air under pressure to said diffuser chamber, the construction of said apparatus providing for a directed release of air from said chamber outwardly of said trough-like portion through said sleeve, said means for admitting air including an air inlet passage in at least one of said end portions, an inner face of at least said one end portion being inclined relative to said trough-like portion and to said inlet passage, said inlet passage opening through said inclined face into the area which provides said diffuser chamber, and a flapper type valve element mounted to lie on said inclined inner face of said one end portion to cover said inlet passage and to utilize gravitational force in achieving a sealing contact with said face, said apparatus having a normal use attitude placing said trough-like portion of said frame lowermost and said inner face of said one end portion inclining upwardly from said trough-like portion in a direction away from the other end portion.
Claim 14
Dependent Claim
203 words
Diffuser apparatus comprising a unitary frame presenting longitudinally spaced apart end portions and an interconnecting trough-like portion, said frame being adapted to mount a diffuser sleeve forming with said end portions and said trough-like portion a diffuser chamber, means for admitting air under pressure to said diffuser chamber, the construction of said apparatus providing for a directed release of air from said chamber outwardly of said trough-like portion through said sleeve, said means for admitting air including an air inlet passage in at least one of said end portions, an inner face of at least said one end portion being inclined relative to said trough-like portion and to said inlet passage, said inlet passage opening through said inclined face into the area which provides said diffuser chamber, and a flapper type valve element mounted to lie on said inclined inner face of said one end portion to cover said inlet passage and to utilize gravitational force in achieving a sealing contact with said face, said apparatus having a normal use attitude placing said trough-like portion of said frame lowermost and said inner face of said one end portion inclining upwardly from said trough-like portion in a direction away from the other end portion.
Claim 15
Dependent Claim
42 words
Diffuser apparatus as in claim 12, wherein said valve is anchored to said inclined inner face at a location above said inlet passage, a liftable part of said valve projecting toward said trough-like portion in a covering relation to said inlet passage.
Claim 16
Dependent Claim
48 words
Diffuser apparatus as in claim 13, wherein said inlet passage is formed with means approximately coincident with the plane of said inclined inner face providing for air discharge into said diffuser chamber in plural jets and providing support for said valve at the location of said inlet passage.
Claim 17
Dependent Claim
48 words
Diffuser apparatus as in claim 13, wherein a diffuser sleeve as mounted on said frame is made of a flexible, collapsible material, said sleeve in the absence of air pressure in said diffuser chamber collapsing on said inclined inner face in an overlying bearing relation to said valve.
Claim 18
Dependent Claim
80 words
Diffuser apparatus as in claim 15, wherein said end portions of said frame have cylindrical exteriors to which ends of said diffuser sleeve are clamped, said inclined inner face rising from said trough-like portion to merge with said cylindrical exterior of said one end portion, said cylindrical exteriors being formed with longitudinally spaced apart ribs of circumferential extent providing in the instance of each frame end portion plural longitudinally spaced apart locations having sealing contact with a respective sleeve end.
Claim 19
Dependent Claim
34 words
Diffuser apparatus as in claim 16, wherein ends of said sleeve are unapertured and turned over upon themselves whereby, where clamped to said frame, end portions of said sleeve ends have a double thickness.
Claim 20
Dependent Claim
63 words
Diffuser apparatus as in claim 15, wherein said frame end portions have the configuration of cylindrical bodies to exterior surfaces of which ends of said diffuser sleeve are clamped, each of said end portions having an inclined inner face and said faces inclining from said trough-like portion divergently of one another to provide support for a collapsing diffuser sleeve adjacent each end thereof.
Claim 21
Dependent Claim
42 words
Diffuser apparatus as in claim 18, wherein said frame is made in one piece as a plastic molding, cylindrical surfaces of said end portions and inclined inner faces thereof merging smoothly together in a manner to obviate undue stress on said sleeve.
References Cited (Backward Citations)
GB393551A
Cited
FR856225A
Cited
US2430749A
Cited
GB638185A
Cited
US2687287A
Cited
US3206178A
Cited
US3441216A
Cited
US3429125A
Cited
US3603509A
Cited
US4060486A
Cited
US3977606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |