Non-threaded tubing connector

• US 3,997,195 A
• Filed: 06/05/1975
• Issued: 12/14/1976
• Est. Priority Date: 06/05/1975
• Status: Expired due to Term

• Current Assignee: Merit Plastics Incorporated
• Original Assignee: Merit Plastics Incorporated
• Inventors: Bartholomew, Donald D.
• Primary Examiner(s): Arola, Dave W.
• Application Number:
  US05/584,143
• Time in Patent Office: 558 Days
• Field of Search: 285/322, 285/81, 285/323, 285/175, 285/33, 285/255, 285/370, 285/382, 285/242, 285/DIG. 16, 285/243, 285/331, 285/347, 285/423
• US Class Current: 285/81
• CPC Class Codes: F16L 37/05 tightened by the pressure of a mechanical element
• CPC Class Codes: Y10S 285/915 Mastic

Abstract

A thin plastic tube or tube connector has at one end section a continuous or interrupted inclined plane means which collapses the plastic tube end section over a nipple or the end of another tube. The plastic tube end section is inserted over the nipple or other tube end to be sealed therewithin by the end wall engaging an O-ring within the end section and held in position by a locking ring drawn over the inclined plane means. The locking ring is drawn over the inclined plane surfaces to uniformly collapse the tube end section into engagement with the nipple or other tube end with a sealing force and with the locking sleeve in frictional locked engagement therewith.

Claims

1. In a releasable connector for a conduit, a body of flexible material having a central section containing an axial passageway about which a narrow axially extending annular slot is provided said slot being defined by a bottom wall and radially spaced inner and outer wall portions integrally formed in said body, said inner wall portion having a reduced portion forming a shouldered portion on the outer end, said annular slot and said reduced shouldered portion being disposed within and completely surrounded by an extended portion of said body, an O-ring on said shouldered portion, the conduit having a mating passageway and a thin annular end wall which is extendable into said annular slot for compressing said O-ring and providing an inner seal for the conduit, and threadless means for releasably securing the conduit within said connector.

2. In a releasable connector for a conduit as recited in claim 1, wherein said connector has a continuous annular thin inner wall which supports outer spaced inclined plane sections, and said threadless means includes a locking sleeve movable over said inclined plane sections thereby moving said thin inner wall into contact with the conduit to form an external seal with the outer surface of said conduit.

3. In a releasable connector for a conduit as recited in claim 1, wherein the opposite end of the connector has a cylindrical aperture, and a cylindrical tube having an end snugly fitting in said cylindrical aperture and a passageway aligned with the axial passageway in said connector.

4. In a releasable connector for a conduit as recited in claim 3, wherein said tube is retained in said cylindrical aperture by suitable securing means.

5. In a releasable connector for a conduit as recited in claim 2, wherein said locking sleeve has an inclined slope and said inclined plane means slopes in the same degree as the inclined slope of said locking sleeve which when moved thereover is retained against a reverse movement which would release said conduit.

6. In a releasable connector for a conduit as recited in claim 5, wherein said inclined plane sections have an annular bead at the inner edge which blocks the reverse movement of the locking sleeve from the inclined plane sections.

7. In a releasable connector for a conduit as recited in claim 2, wherein the outer end of the connector has inclined plane means on the thin wall thereof which are substantially of uniform thickness from the inner to the outer ends, and a locking sleeve having a slightly inclined plane on the outer end which compacts and compresses the material of the inclined plane sections and the thin inner wall to force the material into intimate engagement with the outer surface of the conduit to form an outer seal therewith.

8. In a releasable connector for a conduit member, as recited in claim 4, wherein said suitable securing means is heat.

9. In a releasable connector for a conduit member, as recited in claim 8, wherein said suitable securing means is an adhesive.