US2021129419A1PendingUtilityA1

Mechanized inverter for pipe liners

Assignee: SAK CONSTRUCTION LLCPriority: Aug 14, 2019Filed: Jan 11, 2021Published: May 6, 2021
Est. expiryAug 14, 2039(~13.1 yrs left)· nominal 20-yr term from priority
F16L 55/1651B29L 2023/006B29C 63/36
49
PatentIndex Score
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Claims

Abstract

A system and method for efficiently and safely installing a pipe liner is provided, as well as methods of using the same. The system and method for efficiently and safely installing, a pipe liner may provide an inverter configured to invert the pipe liner by introducing pressure into the pipe liner; provide a top roller; provide an assist system located between the inverter and the top roller, the assist system comprising: a main housing having a main housing top and a main housing bottom, and each of the main housing top and the main housing bottom having an opening; a first interior roller; a second interior roller; and a first motor; and feed the pipe liner onto the tarp roller, wherein the assist system feeds the pipe liner from the top roller to the inverter in an efficient and controller manner.

Claims

exact text as granted — not AI-modified
1 . A system for installing a pipe liner into a host pipe, the system comprising:
 an inverter configured to invert said pipe liner by introducing pressure into said pipe liner;   a top roller; and   an assist system located between said inverter and said top roller, said assist system comprising:
 a main housing having a main housing top and a main housing bottom, and each of said main housing top and said main housing bottom having an opening; 
 a first interior roller; 
 a second interior roller: and 
 a first motor. 
   
     
     
         2 . The system of  claim 1 , wherein said pipe liner is a cured-in-place pipe liner. 
     
     
         3 . The system of  claim 1 , wherein said first interior roller has a round profile. 
     
     
         4 . The system of  claim 1 , wherein said second interior roller has a cam-shaped profile. 
     
     
         5 . The system of  claim 1 , wherein said first interior roller has a round profile and said second interior roller has a cam-shaped profile. 
     
     
         6 . The system of  claim 5 , wherein said first interior roller further comprises a plurality of exterior roller wheel sections. 
     
     
         7 . The system of  claim 6 , wherein said plurality of exterior roller wheel sections comprise rubber. 
     
     
         8 . The system of  claim 5 , wherein said second interior roller further comprises a cam-shaped exterior roller wheel section. 
     
     
         9 . The system of  claim 8 , wherein said cam-shaped exterior roller wheel section comprises rubber. 
     
     
         10 . The system of  claim 1 , wherein said first motor drives said first interior roller, wherein a second motor drives said second interior roller, wherein said first motor is configured to be driven in a first direction, and said second motor is configured to be driven in a direction opposite to that of said first direction. 
     
     
         11 . A method for installing a pipe liner into a host pipe, the method comprising:
 providing an inverter configured to invert said pipe liner by introducing pressure into said pipe liner;   providing a top roller;   providing an assist system located between said inverter and said top roller, said assist system comprising:
 a main housing having a main housing top and a main housing bottom, and each of said main housing top and said main housing bottom having an opening; 
 a first interior roller; 
 a second interior roller; and 
 a first motor: and 
   feeding said pipe liner onto said top roller,   wherein said assist system feeds said pipe liner from said top roller to said inverter in an efficient and controller manner.   
     
     
         12 . The method of  claim 11 , w herein said pipe liner is a cured-in-place pipe liner. 
     
     
         13 . The method of  claim 11 , wherein said first motor drives said first interior roller, wherein a second motor drives said second interior roller, wherein said first motor is configured to be driven in a first direction, and said second motor is configured to be driven in a direction opposite to that of said first direction. 
     
     
         14 . The method of  claim 11 , wherein the feeding step is performed by a human operator. 
     
     
         15 . The method of  claim 14 , wherein said human operator lifts section of said pipe liner onto the top roller. 
     
     
         16 . The method of  claim 14 , wherein said human operator turns said top roller to feed additional portions of said pipe liner to said assist system. 
     
     
         17 . The method of  claim 11 , wherein said air pressure is controlled manually. 
     
     
         18 . The method of  claim 11 , further comprising providing a holding system and adjusting the holding system to alter the drag placed on said pipe liner. 
     
     
         19 . The method of  claims 11 , wherein said first interior roller has a round profile and said second interior roller has a cam-shaped profile. 
     
     
         20 . The method of  claim 19 , wherein said cam roller includes a flat section, and said method further comprises the steps of rotating said flat section to be parallel to said pipe liner and manually feeding said inverter with said pipe liner without the assistance of said assist system.

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