PIPE JOINT CONNECTOR

• US 3,817,561 A
• Filed: 12/08/1971
• Issued: 06/18/1974
• Est. Priority Date: 12/31/1970
• Status: Expired due to Term

• Current Assignee: Francis Xavier Kay
• Original Assignee: Francis Xavier Kay
• Inventors: Kay, Francis Xavier
• Primary Examiner(s): Boler, James R.
• Assistant Examiner(s): Shedd, Wayne L.
• Application Number:
  US05/205,953
• Time in Patent Office: 923 Days
• Field of Search: 285/177,382,238,240,259,345,340,423 287/126
• US Class Current: 134/1
• CPC Class Codes: F16L 37/008 for branching pipes; for joining pipes to walls
• CPC Class Codes: F16L 37/084 combined with automatic locking
• CPC Class Codes: F16L 47/20 based principally on specific properties of plastics

Abstract

A pipe joint, especially for pipes of soft or resilient, e.g. plastics, material and in the sizes used in fluidics systems, comprises a connector body having an orifice sized to receive a pipe to be connected thereto and, internally, two or more sharpedged ribs one of which is interrupted to provide a ring of teeth, the entry face of each rib being ramped and extending from a diameter, at the rib edge, less than the nominal external diameter of the pipe to a diameter greater than the nominal external diameter of the pipe. The body may have two or more pairs or sets of ribs sized to suit pipes of respectively different nominal external diameter.

Claims

1. A pipe joint connector for connecting to a pipe made of a flexible resilient material, comprising:

a. a connector body having an orifice with an entry sized to receive a pipe to be connected thereby b. at least two axially-spaced sharp-edged circumferential ribs in said orifice each defining an aperture less than the nominal external diameter of said pipe, the ribs being hard relative to said pipe c. a ramped divergent surface on the side of each rib facing said orifice entry, said divergent surface extending to a diameter greater than said nominal external diameter of the pipe d. at least one of said ribs being interrupted circumferentially leaving projections which discontinuously deform the circumference of the flexible resilient pipe inserted into said orifice.

2. The pipe joint connector of claim 1, wherein said interrupted rib is the rib furthest from the entry to the said connector body orifice.

3. The pipe joint connector of claim 1, wherein said interrupted rib defines an aperture having a smaller diameter than the aperture defined by the other said rib.

4. The pipe joint connector of claim 1, wherein the said interrupted rib is divided into teeth each subtending an angle in the range 10-20* at the axis.

5. The pipe joint connector of claim 1, including a plurality of continuous circumferential ribs within said orifice in addition to said interrupted rib, the successive ribs spaced from the orifice entry Defining apertures of progressively decreasing diameter and the interrupted rib being furthest from said entry.

6. The pipe joint connector of claim 1, including two sets of said ribs within said orifice, each said set including an interrupted rib, said sets of ribs being respectively adapted for optimum securement and sealing engagement with pipes of two external diameters.

7. The pipe joint connector of claim 6, wherein a recess of diameter greater than the nominal external diameter of the larger of said pipes is formed in said orifice between said sets of ribs.