US2015258731A1PendingUtilityA1

Fusion Process for Conduit

61
Assignee: UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP INCPriority: Jun 13, 2003Filed: Apr 6, 2015Published: Sep 17, 2015
Est. expiryJun 13, 2023(expired)· nominal 20-yr term from priority
Inventors:Bryan St. OngeHenri St. OngeThomas Marti
B29K 2023/06B29C 2793/0081B29C 66/022B29C 66/91231B29C 66/929B32B 41/00B29C 66/71Y10T137/0318B29C 66/967B29K 2023/065B29C 66/9241B29C 65/2061B29C 65/2015B29C 66/02245B29C 66/961B29C 66/5221B29K 2027/06B29C 66/80B29C 66/91216B29C 66/91423B29C 65/7841B29C 37/04B29C 53/20B29C 65/2092B29C 66/02241Y10T156/108B29C 66/1142B29C 66/032B32B 38/0004B29C 66/91921B32B 37/04B29C 66/92B29L 2023/22B29C 66/91431B29C 66/92211B29C 65/02B29C 66/9261
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Claims

Abstract

Disclosed is a method and apparatus for use in a fusion process for conduit. The method includes: heating and melting at least a portion of the terminal edges of the first conduit portion and the second conduit portion; and butt fusing the melted terminal edge of the first conduit portion with the melted terminal edge of the second conduit portion, thereby creating a fused joint area. A fusion apparatus for employing this method is also disclosed.

Claims

exact text as granted — not AI-modified
1 : A method of fusing a first conduit portion to a second conduit portion, comprising:
 facing at least one of the first terminal edge of the first conduit portion and the first terminal edge of the second conduit portion;   aligning the first terminal edge of the first conduit portion with the first terminal edge of the second conduit portion;   heating and melting at least a portion a first terminal edge of the first conduit portion and at least a portion of a first terminal edge of the second conduit portion, wherein the first conduit portion and the second conduit portion comprise a polyvinyl chloride material, wherein the heating and melting includes contact of at least a portion of at least one of the first terminal edge of the first conduit portion and the first terminal edge of the second conduit portion with a heating plate at a temperature of about 415° F.;   butt fusing the at least one first conduit portion and the at least one second conduit portion together by engaging the heated and melted first terminal edge of the at least one first conduit portion with the heated and melted first terminal edge of the at least one second conduit portion at an engagement interfacial pressure of about 140 psi, thereby creating a butt fused joint area therebetween; and   optionally removing at least a portion of a resultant external bead extending around the butt fused joint area.   
     
     
         2 - 81 . (canceled)

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