US 12,455,036 B2
CIPP liner feed roller
Jason M. Homrighaus, Canton, SD (US); Brandon G. Strom, Vergas, MN (US); and Gary H. Strom, Moorhead, MN (US)
Assigned to Subsurface, Inc., Fargo, ND (US)
Filed by Subsurface, Inc., Fargo, ND (US)
Filed on Feb. 18, 2022, as Appl. No. 17/675,745.
Application 17/675,745 is a continuation of application No. 17/101,666, filed on Nov. 23, 2020, granted, now 11,262,015.
Application 17/101,666 is a continuation of application No. 15/480,630, filed on Apr. 6, 2017, granted, now 10,851,933, issued on Dec. 1, 2020.
Prior Publication US 2022/0170582 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F16L 55/18 (2006.01); B29C 33/34 (2006.01); B65H 20/02 (2006.01); F16L 55/165 (2006.01)
CPC F16L 55/18 (2013.01) [B65H 20/02 (2013.01); B29C 33/34 (2013.01); B65H 2404/144 (2013.01); B65H 2511/224 (2013.01); B65H 2701/11214 (2013.01); B65H 2701/172 (2013.01); F16L 55/1651 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A CIPP liner feed roller apparatus, comprising:
a frame;
a main roller attached to the frame;
a clamping roller attached to the frame and oriented in parallel with the main roller;
a drive unit connected to the main roller, wherein the drive unit rotates the main roller;
a bridge beam attached to the frame, wherein the bridge beam is oriented parallel to a longitudinal axis of the main roller; and
a bridge connector centrally attached to the bridge beam;
wherein the CIPP liner feed roller apparatus is lifted using the bridge connector or an attachment thereto; and
wherein the CIPP liner feed roller apparatus pulls a CIPP liner between the main roller and the clamping roller from a liner source.