×

Tap for compressed or liquefied gases

  • US 5,282,496 A
  • Filed: 04/02/1992
  • Issued: 02/01/1994
  • Est. Priority Date: 12/23/1991
  • Status: Expired due to Fees
First Claim
Patent Images

1. Tap for compressed or liquefied gases, comprising a tap chamber (10) designed in order to be fitted on a gas cylinder and enclosing a closure member (14) at the intersection of an inlet pipe (18) and of an outlet pipe (20), means for manoeuvering the closure member, and a safety valve (26), characterised in that the inlet pipe (18) communicates, on the side opposite the closure member (14), with a two-way valve (30) permitting both filling and draining of the gas cylinder, comprising a shell (32) with at least one lateral opening (34, 36) which can be sealed off by a sealing device (40) provided with a passage (48) for gas, a spring (44) for displacing the sealing device (40) to a position of obstruction of the openings (34, 36) and for permitting the sealing device (40) to move to a position of opening against the action of the spring (44) and through the effect of the pressure of the filling gas, a level-controlling valve (52) movable between open and closed positions and operable, when in said open position, to permit gas to flow between the gas cylinder and the passage (48), and means (62) for detecting the filling level in the gas cylinder and for actuating the level-controlling valve (52) in response to such level, said level-controlling valve, when not held in an open position by said detecting means (62), being openable by the pressure of the gas in the cylinder when the closure member (14) is open.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×