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Device for two-way transfer of a liquid between a bottle and a cartridge

  • US 6,746,438 B1
  • Filed: 08/15/2001
  • Issued: 06/08/2004
  • Est. Priority Date: 03/18/1999
  • Status: Expired due to Term
First Claim
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1. A device for two-way transfer of a liquid (38) between a bottle (14), provided with a perforable stopper (44), and a cartridge (12), comprising a cylindrical reservoir (26) in which a perforable piston (34) slides, characterized in that it includes:

  • a body (16) having means for fixing to the bottle (14), a member (24) for connecting the perforable piston (34) to the body (16), a shuttle (20) which is displaceable relative to the body (16) and to said connecting member (24), the shuttle (20) bearing a hollow needle (22) of which a first end (112) is adapted to perforate the piston (34) and of which the second end (114) is adapted to perforate the stopper (44), and in that the shuttle (20) is displaceable between an initial position, in which the needle ends (112, 14) are spaced apart from the perforable piston (34) and the perforable stopper (44), and a final transfer position, in which the needle ends (112, 114) are received in the cartridge (12) and the bottle (14).

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