Patent US4607565A successfully refreshed from Google Patents.
US4607565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow deflecting assembly
Assignee: Panasonic Holdings Corp
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Filing: 1985-05-07
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Granted: 1986-08-26
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Expires: 2005-05-07
Abstract
Abstract In the outlet part of a fluid passage generally rectangular in cross section defined by two parallel opposed broad walls spaced apart a short distance therebetween and two opposed narrower walls spaced apart a longer distance therebetween, the narrower walls curve outwards forming guide walls, and a row of deflecting blades of curved profile extend between the broad walls and are held in angle-adjustable manner between said curved faces of the guide walls to effectively deflect fluid flow without loss of flow rate by the attachment effect to the curved faces.
Inventors
- 👤 Norio Sugawara
- 👤 Motoyuki Nawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:20
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
212 words
A flow deflecting assembly comprising: a fluid passage generally rectangular in cross section defined by a pair of parallel opposed broad walls disposed with a short distance therebetween and a pair of opposed narrower walls disposed with a longer distance therebetween, and having an inlet and an outlet, said narrower walls have opposed faces that curve outward in the vicinity of said outlet to form guide walls, a pair of flow deflecting blades of curved profile extend between said broad walls and are mounted to rotatable center shafts, said blades being respectively disposed in the vicinities of but spaced from said curved faces of said guide walls, the gaps between said shafts and said curved faces of guide walls being smaller than the radius of curvature of said curved surfaces of said guide walls, the downstream edge of said blades being disposed upstream of said passage outlet and downstream of the starting point of said curved surfaces of said guide walls so that said blades can be adjusted to induce attachment of the flow to said curved faces, and a row of deflecting blades of curved profile, which extend between said broad walls and are held in an angle-adjustable manner, are disposed between said pair of deflecting blades with predetermined pitches therebetween.
Claim 2
Dependent Claim
212 words
A flow deflecting assembly comprising: a fluid passage generally rectangular in cross section defined by a pair of parallel opposed broad walls disposed with a short distance therebetween and a pair of opposed narrower walls disposed with a longer distance therebetween, and having an inlet and an outlet, said narrower walls have opposed faces that curve outward in the vicinity of said outlet to form guide walls, a pair of flow deflecting blades of curved profile extend between said broad walls and are mounted to rotatable center shafts, said blades being respectively disposed in the vicinities of but spaced from said curved faces of said guide walls, the gaps between said shafts and said curved faces of guide walls being smaller than the radius of curvature of said curved surfaces of said guide walls, the downstream edge of said blades being disposed upstream of said passage outlet and downstream of the starting point of said curved surfaces of said guide walls so that said blades can be adjusted to induce attachment of the flow to said curved faces, and a row of deflecting blades of curved profile, which extend between said broad walls and are held in an angle-adjustable manner, are disposed between said pair of deflecting blades with predetermined pitches therebetween.
Claim 3
Dependent Claim
33 words
A flow deflecting assembly in accordance with claim 1, wherein the gaps between the center parts of all the blades are substantially equal to the chord length of the blades in the row.
Claim 4
Dependent Claim
35 words
A flow deflecting assembly in accordance with claim 1, wherein the fluid passage, the curved faces and the blades are of symmetrical configuration with respect to a central plane extending perpendicular to the broad walls.
Claim 5
Dependent Claim
40 words
A flow deflecting assembly in accordance with claim 3 including means for remotely controlling the deflection angle of all the blades on one side of the plane simultaneously and all the blades on the other side of said plane simultaneously.
Claim 6
Dependent Claim
62 words
A flow deflecting assembly in accordance with claim 1 wherein the blades are of airfoil profile with their thicker edge disposed upstream, said blades have a concave surface on one side and a convex surface on the other side and said concave surfaces of the blades of the pair are disposed in opposition to their corresponding curved faces of the guide walls.
Claim 7
Dependent Claim
40 words
A flow deflecting assembly in accordance with claim 1 including a cross-flow fan extending between the narrower walls upstream of the guide walls and wherein the passage has outwardly offset parts in which the ends of said fan are disposed.
References Cited (Backward Citations)
US3063357A
Cited
US3257931A
Cited
US3314249A
Cited
US3358577A
Cited
US3391629A
Cited
US3468239A
Cited
US3949656A
Cited
JPS565955A
Cited
US4407186A
Cited
JPS585887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |