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US 4,214,607 AGranted
Unidirectional flow limiter
AssigneeSociete Anonyme: La Telemecanique Electrique
InventorDaniel Bouteille
Life of this patent
Estimating the term…
Abstract
Unidirectional flow limiter housed in a union between a pipe and a user apparatus, comprising a first channel, a second channel, a flow reduction member between the two channels, a third channel, a non-return valve in the third channel and constituted by a deformable annular member placed concentrically about one of the first or second channels.
Claims18
A connection element for connection between a fluid pipe and a user apparatus, comprising:
- first means for defining a substantially cylindrical first elongated cavity, said first means including means for connecting said first cavity to said pipe to define a flow path between said first cavity and said pipe;
- second means for defining an annular chamber around said first cavity, said annular chamber being separated from said first cavity by a substantially cylindrical wall having at least one opening therein to define at least one flow path between said first cavity and said annular chamber;
- third means mounted within said first means adjacent to said annular chamber and passing through said first cavity for defining a substantially cylindrical second cavity, the axis of said second cavity intersecting the axis of said first cavity at substantially right angles, said third means being exposed to said first cavity and providing at least one flow path between said first and second cavities, said third means additionally being exposed to said annular chamber and providing at least one flow path between said second cavity and said annular chamber, said third means additionally including means for connecting said second cavity to said user apparatus to define a flow path between said second cavity and said user apparatus;
- fourth means mounted within said second cavity for at least partially closing said at least one flow path between said first and second cavities, said fourth means comprising a substantially cylindrical member having substantially the same radius as said second cavity;
- and
- deformable annular means mounted on said substantially cylindrical wall and covering said at least one opening therein for permitting fluid flow in one direction only along said at least one flow path between said first cavity and said annular chamber.
3 more elements
A connection element for connection between a fluid pipe and a user apparatus, comprising:
- a first element having a first elongated cavity therein, said first cavity having an axis and being divided by a plane perpendicular to said axis into first and second portions, said first portion having larger internal dimensions than said second portion as measured parallel to said plane, said first element further having a bore extending through said first element and through said second portion of said first cavity, said bore having an axis substantially perpendicular to the axis of said first cavity, said first element further having a second cavity extending from said bore to said first portion of said first cavity;
- stopper means mounted in said first portion of said first cavity for dividing said first portion of said first cavity into a third elongated cavity having an axis, said third cavity being substantially coaxial with said first cavity and communicating with said second portion of said first cavity, and an annular chamber into which said second cavity opens, said annular chamber being disposed around said third cavity and being separated from said third cavity and from said second portion of said first cavity by a tubular wall having at least one opening therein to define at least one flow path between said third cavity and said annular chamber, said stopper means additionally including means for connecting said fluid pipe to said third cavity to define a flow path between said fluid pipe and said third cavity;
- means mounted within the bore of said first element for defining a fourth cavity communicating with said annular chamber through said second cavity, said means including a tubular hollow element housed within said bore and extending at least through said second portion of said first cavity, said tubular hollow element being exposed to said second portion of said first cavity and having at least one opening therein to define a flow path between said fourth cavity and said second portion of said first cavity, said means additionally including means for connecting said fourth cavity to said user apparatus to define a flow path between said fourth cavity and said user apparatus;
- means mounted in said tubular hollow element for at least partially obscuring said at least one opening therein to at least partially close said at least one flow path between said fourth cavity and said second portion of said first cavity;
- and
- deformable annular means mounted on said stopper means and covering said at least one opening in said tubular wall for permitting fluid flow in one direction only along said at least one flow path between said annular chamber and said third cavity.
3 more elements
A condition element for connection between a fluid pipe and a user apparatus, comprising:
- a first elongated element having an axis and a first cavity therein said first cavity having a first substantially cylindrical portion substantially coaxial with the axis of said first cavity, and a second substantially cylindrical portion substantially coaxial with the axis of said first cavity, the radius of said first portion being greater than the radius of said second portion, said first element additionally having a substantially cylindrical bore extending through said first element and through said second portion of said first cavity, said bore having an axis substantially perpendicualr to the axis of said first cavity and a radius smaller than the length of said second cylindrical portion of said first cavity, said first element additionally having a second elongated cavity extending from said first portion of said first cavity through said bore, the axis of said second cavity being substantially parallel to the axis of said first cavity;
- stopper means mounted in said first portion of said first cavity for defining a third substantially cylindrical cavity within said first portion of said first cavity and communicating with said second portion of said first cavity, said third cavity being substantially coaxial with said first cavity and having substantially the same radius as said second portion of said first cavity, and an annular chamber around said third cavity, said annular chamber being isolated from said third cavity and from said second portion of said first cavity by a substantially cylindrical wall having at least one opening therein to define at least one flow path between said third cavity and said annular chamber, said second cavity opening into said annular chamber, said stopper means additionally including means for connecting said fluid pipe to said third cavity for defining a flow path between said fluid pipe and said third cavity;
- means mounted within the bore of said first element for defining a fourth cavity communicating with said annular chamber through said second cavity, said means including first elongated member having a substantially cylindrical tunnel substantially coaxial with said bore, said first member being housed within said bore and extending at least through said second portion of said first cavity, said fourth cavity extending into the tunnel of said first elongated member, said first elongated member being exposed to said second portion of said first cavity and having at least one opening therein to define a flow path between said fourth cavity and said second portion of said first cavity, said means mounted within the bore of said first element additionally including means for connecting said fourth cavity to said user apparatus to define a flow path between said fourth cavity and said user apparatus;
- means adjustably mounted in said tunnel in said first elongated member for at least partially obscuring said at least one opening therein to at least partially close said at least one flow path between said fourth cavity and said second portion of said first cavity, said means comprising a substantially cylindrical member having substantially the same radius as said tunnel;
- and
- deformable annular means mounted on said stopper means and covering said at least one opening in said substantially cylindrical wall for permitting fluid flow in one direction only along said at least one flow path between said annular chamber and said third cavity.
3 more elements
Dependencies are inferred from the claim text.