Quick coupling pipe connecting structure with body-tapered sleeve

• US 5,131,632 A
• Filed: 10/28/1991
• Issued: 07/21/1992
• Est. Priority Date: 10/28/1991
• Status: Expired due to Fees

• Current Assignee: Darwin B. Olson
• Original Assignee: Darwin B. Olson
• Inventors: Olson, Darwin B.
• Primary Examiner(s): Reese, Randolph A.
• Assistant Examiner(s): Aberle, Timothy
• Application Number:
  US07/783,199
• Time in Patent Office: 267 Days
• Field of Search: 285/382, 285/373, 285/419, 285/322, 285/421
• US Class Current: 285/382
• CPC Class Codes: F16L 37/02 in which the connection is maintained only by friction of the parts being joined F16L37/22 takes precedence
• CPC Class Codes: F16L 37/138 using an axially movable sleeve

Abstract

A quickly attachable longitudinally split coupling structure to connect a pair of pipe ends for a leak proof connection, the coupling structure requiring only a tapping tool for installation or removal.

Claims

1. A quick connecting leak proof pipe coupling structure, comprising

a cylindrical member longitudinally radially split forming separable sections,

each of said sections having a notch at one side edge thereof and a projecting tongue at the other side edge thereof,

said notches and projecting tongues of said sections respectively interfitting to mate the respective adjacent edges of said sections in being disposed about adjacent smooth, annular end portions of a pair of abutting pipe ends,

said separable sections in an assembled cylindrical condition having a full length tapered exterior diameter,

a sleeve member having an interior full length diametrical taper slid over said assembled sections and about said pipe ends compressing said sections into a leak proof coupling structure.

2. The structure of claim 1, including

an internal rib formed in each of said separable sections indicating the center point of the lengths of said sections.

3. A quick connecting leak proof pipe coupling member, comprising

a cylindrical member being longitudinally radially split forming separable sections,

said sections respectively having their adjacent edges interengage and mate in being disposed about abutting end portions of a pair of pipe lengths,

each of said sections having a central annular projection at one side edge thereof,

each of said sections having a notch at the other side edge thereof adapted to receive therein said projection of the adjacent edge of said section for interengagement,

spaced from said central projection of said sections at each side thereof in assembled cylindrical condition are internal annular grooves,

said pair of smooth annular pipe lengths having annular grooves spaced from their said abutting ends corresponding to said internal annular projections, said abutting pipe ends respectively being disposed into each end of said assembled sections, said annular grooves on said pipe ends respectively receiving said internal projections to be seated therein,

said sections assembled having a full length tapered exterior diameter, and

a cylindrical sleeve adapted to slide over said assembled sections and having an interior tapered diameter corresponding to said exterior tapered diameter of said assembled sections thereby embracing said assembled sections and compressing the same into a leak proof coupling structure.

4. The structure of claim 3, wherein

said internal projections of said sections and said annular grooves of said pipe end being v-shaped in cross section.

5. The structure of claim 3, wherein

said internal shoulder of said assembled sections and the respective annular grooves adjacent said pipe ends having the entry of said projections into said grooves cause the pipe ends to be pressed together endwise to increase the sealing effect of their abutting engagement.