Device for charging pressurized systems
First Claim
1. A dispensing device for charging a primary fluid system, such as an air-conditioning or cooling system, closed and at a first pressure (P1), with a secondary fluid, comprising:
- (a) a dispensing cylinder of the secondary fluid, said dispensing cylinder containing the secondary fluid and propellant fluid having a second pressure (P2) greater than said first pressure, said dispensing cylinder further comprising a filler valve suitable for being operated to allow or prevent the exit at least of the secondary fluid from the cylinder;
(b) a connection hood partially superposed over the dispensing cylinder, said connection hood being fitted with connection means suitable for fluidically connecting said filler valve directly to said primary fluid system or to a connection pipe to said primary fluid system,wherein said filler valve comprises a filler duct and an obturator element movable between a forward, closed position of said filler duct and a rearward, open position of said filler duct,the dispensing device being characterised in that the dispensing cylinder is of a substantially cylindrical shape and the connection hood comprises a hollow cylindrical body wherein said dispensing cylinder is partially housed, in such a way that said dispensing cylinder and said hood are coupled and axially movable in relation to each other like a syringe so as to move the obturator element of the filler valve between the forward position and the rearward position and wherein said connection hood is fitted, at its insertion aperture for the cylinder, with at least one pair of radial grip tabs.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for charging a primary fluid system, such as an air-conditioning or cooling system, closed and at a first pressure (P1), with a secondary fluid, comprises a dispensing cylinder of the secondary fluid, said cylinder containing the secondary fluid and a propellant fluid having a second pressure (P2) greater than said first pressure. Said cylinder further comprising a filler valve operable to allow/block the exit at least of the secondary fluid from the cylinder. A connection hood is partially superposed over the dispensing cylinder, fitted with connections means suitable for fluidically connecting said filler valve directly to said primary fluid system or to a connection pipe to said system.
12 Citations
19 Claims
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1. A dispensing device for charging a primary fluid system, such as an air-conditioning or cooling system, closed and at a first pressure (P1), with a secondary fluid, comprising:
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(a) a dispensing cylinder of the secondary fluid, said dispensing cylinder containing the secondary fluid and propellant fluid having a second pressure (P2) greater than said first pressure, said dispensing cylinder further comprising a filler valve suitable for being operated to allow or prevent the exit at least of the secondary fluid from the cylinder; (b) a connection hood partially superposed over the dispensing cylinder, said connection hood being fitted with connection means suitable for fluidically connecting said filler valve directly to said primary fluid system or to a connection pipe to said primary fluid system, wherein said filler valve comprises a filler duct and an obturator element movable between a forward, closed position of said filler duct and a rearward, open position of said filler duct, the dispensing device being characterised in that the dispensing cylinder is of a substantially cylindrical shape and the connection hood comprises a hollow cylindrical body wherein said dispensing cylinder is partially housed, in such a way that said dispensing cylinder and said hood are coupled and axially movable in relation to each other like a syringe so as to move the obturator element of the filler valve between the forward position and the rearward position and wherein said connection hood is fitted, at its insertion aperture for the cylinder, with at least one pair of radial grip tabs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A dispensing device for charging a primary fluid system, such as an air-conditioning or cooling system, closed and at a first pressure (P1), with a secondary fluid, comprising:
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(a) a dispensing cylinder of the secondary fluid, said dispensing cylinder containing the secondary fluid and propellant fluid having a second pressure (P2) greater than said first pressure, said dispensing cylinder further comprising a filler valve suitable for being operated to allow or prevent the exit at least of the secondary fluid from the cylinder; (b) a connection hood partially superposed over the dispensing cylinder, said connection hood being fitted with connection means suitable for fluidically connecting said filler valve directly to said primary fluid system or to a connection pipe to said primary fluid system, wherein said filler valve comprises a filler duct and an obturator element movable between a forward, closed position of said filler duct and a rearward, open position of said filler duct, the dispensing device being characterised in that the dispensing cylinder is of a substantially cylindrical shape and the connection hood comprises a hollow cylindrical body wherein said dispensing cylinder is partially housed, in such a way that said dispensing cylinder and said hood are coupled and axially movable in relation to each other like a syringe so as to move the obturator element of the filler valve between the forward position and the rearward position; wherein the filler duct of the filler valve is obtained in a filler stem having a distal end projecting from the cylinder, and wherein said connection hood forms an axial abutment for said distal end of the filler stem; wherein said connection hood has a dispensing nozzle defining said axial abutment for said distal end of the filler stem, the connection means being fluidically coupled to said dispensing nozzle; wherein the connection means are detachably attached to the dispensing nozzle; and wherein the connection means are sealingly screwed to the dispensing nozzle.
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19. A dispensing device for charging a primary fluid system, such as an air-conditioning or cooling system, closed and at a first pressure (P1), with a secondary fluid, comprising:
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(a) a dispensing cylinder of the secondary fluid, said dispensing cylinder containing the secondary fluid and propellant fluid having a second pressure (P2) greater than said first pressure, said dispensing cylinder further comprising a filler valve suitable for being operated to allow or prevent the exit at least of the secondary fluid from the cylinder; (b) a connection hood partially superposed over the dispensing cylinder, said connection hood being fitted with connection means suitable for fluidically connecting said filler valve directly to said primary fluid system or to a connection pipe to said primary fluid system, wherein said filler valve comprises a filler duct and an obturator element movable between a forward, closed position of said filler duct and a rearward, open position of said filler duct, the dispensing device being characterised in that the dispensing cylinder is of a substantially cylindrical shape and the connection hood comprises a hollow cylindrical body wherein said dispensing cylinder is partially housed, in such a way that said dispensing cylinder and said hood are coupled and axially movable in relation to each other like a syringe so as to move the obturator element of the filler valve between the forward position and the rearward position; wherein the cylinder and the connection hood are provided with snap coupling means; and wherein said snap coupling means comprise elastic tabs obtained in the side wall of the connection hood and corresponding radial recesses made in the side wall of the cylinder and suitable for being snap engaged by said flexible tabs.
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Specification