×

Detachable push-in connector for semirigid pipes

  • US 5,292,157 A
  • Filed: 11/03/1992
  • Issued: 03/08/1994
  • Est. Priority Date: 11/14/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. A detachable push-in connector for semi-rigid pipes comprising a housing having an axis and an axially oriented through hole for the passage of a fluid, a plurality of cavities therein increasing in size for receiving connecting parts and an entrance end through which a piece of pipe to be connected is pushed into the connector, a shoulder of a first and smallest cavity located the farthest from the entrance end serving as a stop for the pipe, a shoulder of a second larger cavity between the first cavity and said entrance end serving as a stop for an elastic sealing ring, the sealing ring having an inside diameter less than the outer diameter of the pipe and being preceded in the push-in direction of the pipe by a retaining ring having inwardly projecting spring tongues, said tongues forming a flat truncated cone, the apex of which points inwardly and in said push-in direction, the internal diameter of the tips of the tongues being less than the outer diameter of the pipe and adapted to grip said pipe and hold it in said connector, said tips being capable of opening out elastically, a stop ring between said sealing ring and said retaining ring, said retaining ring resting on and end of said stop ring opposite from said sealing ring, said end of the stop ring having a bevelled portion adjacent said spring tongues to permit and limit outward movement of said tongues, a supporting ring located in a third larger cavity preceding the retaining ring in the push-in direction, means for holding said supporting ring against axial movement in said third cavity and a disconnecting ring axially slidable relative to and internally of said supporting ring and preceding said retaining ring in the push-in direction, said disconnecting ring having a forward facing conical edge for pushing outward said spring tongues when it is pushed forward relative to the supporting ring in the push-in direction and a rearmost rear end face that extends substantially perpendicular to the axis of the connector and that is located axially inwardly of the rearmost portion of said connector at the entrance end of said housing.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×