US3736858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air vents
Assignee: Peugeot & Renault
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Filing: 1971-03-19
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Granted: 1973-06-05
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Expires: 1991-03-19
Abstract
Abstract This air vent intended for private or office rooms, or for the passenger compartments of vehicles, notably automobiles, comprises an air outlet and a diffuser movable fitted therein to permit a variable and orientable diffusion of the air stream flowing therefrom, said outlet comprising part-cylindrical lips receiving a drum-shaped diffuser comprising in turn two opposite cylindrical sectors rotatably fitted in said lips about their common axis, at least one of said sectors being adapted to act a shutter to close said outlet completely in one position, air circulation passage being formed between said sectors, said passages being wider at one end than at the opposite end, whereby a divergent diffusion or a convergent projection is obtained accordingly as the drum is disposed with the wider or narrower ends of its air circulation passages on the outlet side of the diffuser, the air stream thus obtained being adapted to be oriented at will also by rotating said drum.
Inventors
- 👤 J Mercier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/072; B; B60; B60H; B60H1/00; B60H1/34; B60H1/345; F24F13/065; B64; B64D; B64D13/00; B64D2013/003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
An air vent for producing a variable and orientatable diffusion of an air stream comprising: a. a transverse opening having semi-cylindrical lips; b. a drum shaped diffuser having two opposed cylindrical sectors with at least one of the sectors dimensioned to act as a shutter; the diffuser being rotatably mounted within the semicylindrical lips; c. a gap between the sectors with partitions to form a plurality of air circulation passages having a smaller cross-sectional area at one end than the other; c. means to rotate the drum about its axis to obtain a divergent diffusion, a convergent projection or a blockage of the flow through the vent.
Claim 2
Dependent Claim
107 words
An air vent for producing a variable and orientatable diffusion of an air stream comprising: a. a transverse opening having semi-cylindrical lips; b. a drum shaped diffuser having two opposed cylindrical sectors with at least one of the sectors dimensioned to act as a shutter; the diffuser being rotatably mounted within the semicylindrical lips; c. a gap between the sectors with partitions to form a plurality of air circulation passages having a smaller cross-sectional area at one end than the other; c. means to rotate the drum about its axis to obtain a divergent diffusion, a convergent projection or a blockage of the flow through the vent.
Claim 3
Dependent Claim
31 words
Air vent according to claim 1 in which the aforesaid air circulation passages are bounded by fixed blades having a smaller mutual spacing at one enD than at the other end.
Claim 4
Dependent Claim
24 words
Air vent according to claim 1 in which the aforesaid partitions are interconnected at mid-height by a blade extending diametrally throughout the drum length.
Claim 5
Dependent Claim
42 words
An air vent according to claim 1, in which the registering faces of said cylindrical sectors are spaced from each other so as to be coplanar with the inner walls of the air inlet in the fully open position of the drum.
Claim 6
Dependent Claim
42 words
An air vent according to claim 1 in which the means to rotate the drum is a wheel having detent-positioning means provided for resiliently retaining said wheel and therefore said drum in a desired angular position in relation to the air outlet.
Claim 7
Dependent Claim
122 words
An air vent for producing a variable and orientatable diffusion of an air stream comprising: a. a transverse opening having semi-cylindrical lips; b. a drum shaped diffuser having two opposed cylindrical sectors with at least one of the sectors dimensioned to act as a shutter; the diffuser being rotatably mounted within the semi-cylindrical lips; c. a gap between the sectors with partitions to form a plurality of air circulation passages, a central partition substantially perpendicular to the drum axis with the inclination of the other partitions increasing in the direction away from the central blade; d. means to rotate the drum about its axis to obtain a divergent diffusion, a convergent projection or a blockage of the air flow through the vent.
Claim 8
Dependent Claim
122 words
An air vent for producing a variable and orientatable diffusion of an air stream comprising: a. a transverse opening having semi-cylindrical lips; b. a drum shaped diffuser having two opposed cylindrical sectors with at least one of the sectors dimensioned to act as a shutter; the diffuser being rotatably mounted within the semi-cylindrical lips; c. a gap between the sectors with partitions to form a plurality of air circulation passages, a central partition substantially perpendicular to the drum axis with the inclination of the other partitions increasing in the direction away from the central blade; d. means to rotate the drum about its axis to obtain a divergent diffusion, a convergent projection or a blockage of the air flow through the vent.
Claim 9
Dependent Claim
25 words
The vent of claim 6 in which the radius of curvature of the other partitions also decreases in the direction away from the central partition.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |