Method and apparatus for joining plastic pipe
OwnerJan Nyquistinventor
Life of this patent
Estimating the term…
Abstract
A simpler method and apparatus for joining plastic pipe (2) is provided by creating a flange ring (4) on the end of a plastic pipe (2), the flange ring (4) being cut from a short length of a larger dimension plastic pipe selected or machined to fit closely over the outer diameter of the plastic pipe (2) to provide a flange (4) which may be bolted or fastened to a similar flange. A similar method may be used to provide a connection by means of a coupling.
Claims6
Apparatus for joining lengths of plastic pipe comprising a flange fastened to the end of said length of plastic pipe, said flange being comprised of a ring formed by cutting short length of a plastic pipe of larger diameter selected or machined such that the internal diameter of the ring fits snugly over the outer diameter of the length of pipe.
Apparatus for joining lengths of plastic pipe comprising a coupling formed by cutting a length of a larger diameter plastic pipe selected or machined such that the length of pipe to be joined may be inserted and heat welded into said coupling in one-half of the length thereof and a second pipe to be joined to said first pipe is inserted and heat welded into the other half of the length therof.
A method of joining lengths of plastic pipe comprising:
- selecting a piece of pipe having an internal diameter equal to or slightly less than the outer diameter of the pipe to be joined;
- cutting a short length of said larger pipe to form a ring;
- machining the internal diameter of said ring, if necessary, to enable said ring to fit snugly over the outer diameter of said length of pipe;
- heating the external surface of the end of said length of pipe and the internal surface of said ring to a melting temperature;
- fitting said ring over the end of said length of pipe to form a flange;
- joining said lengths of pipe together by fastening adjacent flanges of adjacent pipe lengths together.
A method of providing apparatus for joining lengths of plastic pipe comprising:
- selecting a piece of larger diameter plastic pipe with an internal diameter equal to or slightly smaller than the outer diameter of the lengths of pipe to be joined, to form a coupling;
- machining the internal diameter of said coupling, if necessary, to enable said coupling to fit over the outer diameter of the length of pipe;
- heating the outer end of one length of pipe and the inner diameter of one-half of the coupling and fitting one-half of the length of coupling over the end of one length of pipe to be joined;
- heating the second half of the internal diameter of said coupling and the outer surface of the end of a second piece of pipe and fitting said end into said coupling to be heat welded therein.
Dependencies are inferred from the claim text.