US 12,331,523 B1
Cryogenic trench/trough apparatus and method
Stephen G. Benton, Jr., Metairie, LA (US); Benjamin Owens, Baton Rouge, LA (US); Charlie Belsom, Covington, LA (US); Kevin Babin, Baton Rouge, LA (US); and Jon Gary, Baton Rouge, LA (US)
Assigned to WASKEY BRIDGES, INC., Baton Rouge, LA (US)
Filed by WASKEY BRIDGES, INC., Baton Rouge, LA (US)
Filed on Dec. 5, 2023, as Appl. No. 18/529,126.
Application 18/529,126 is a continuation of application No. 17/955,929, filed on Sep. 29, 2022, granted, now 11,866,942.
Application 17/955,929 is a continuation of application No. 17/352,594, filed on Jun. 21, 2021, granted, now 11,473,308, issued on Oct. 18, 2022.
Application 17/352,594 is a continuation of application No. 16/596,081, filed on Oct. 8, 2019, granted, now 11,041,299, issued on Jun. 22, 2021.
Application 16/596,081 is a continuation of application No. 16/223,581, filed on Dec. 18, 2018, granted, now 10,487,510, issued on Nov. 26, 2019.
Application 16/223,581 is a continuation in part of application No. 16/156,844, filed on Oct. 10, 2018, granted, now 10,495,235, issued on Dec. 3, 2019.
Claims priority of provisional application 62/760,257, filed on Nov. 13, 2018.
Claims priority of provisional application 62/599,905, filed on Dec. 18, 2017.
Claims priority of provisional application 62/580,943, filed on Nov. 2, 2017.
Claims priority of provisional application 62/570,369, filed on Oct. 10, 2017.
This patent is subject to a terminal disclaimer.
Int. Cl. E03F 5/04 (2006.01); E04D 13/064 (2006.01); F16L 1/06 (2006.01); F17D 1/08 (2006.01)
CPC E04D 13/0646 (2013.01) [E03F 5/04 (2013.01); F16L 1/06 (2013.01); F17C 2260/037 (2013.01); F17D 1/082 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method of installing a trench for containing a cryogenic spill, comprising the steps of:
a) constructing multiple precast concrete sections to form a trough, each section having a bottom wall and spaced apart side walls connected to and extending up from said bottom wall;
b) wherein in step “a” each section has end portions that enable connection to another said concrete section;
c) providing multiple panels of cryogenic insulative material;
d) adhering one or more of said multiple panels of step “c” to the bottom wall and side walls of each said concrete section;
e) connecting the concrete sections together using connections of one end portion to another end portion;
f) applying an epoxy grout to the connections of step “e”;
g) wherein in step “f” the connection includes and filling a gap in between the end portions with a seal;
h) placing the trough next to pipe racks holding elevated cryogenic containing flow lines;
i) connecting the trough to an area under the pipe rack with a slab; and
i) placing a riser on the slab opposite the trough.