US 10,982,902 B2
Stave cooler
Allan J. MacRae, Hayward, CA (US)
Assigned to MacRae Technologies, Inc., Hayward, CA (US)
Filed by MacRae Technologies, Inc., Hayward, CA (US)
Filed on Jul. 11, 2020, as Appl. No. 16/926,649.
Application 16/926,649 is a continuation in part of application No. 16/712,912, filed on Dec. 12, 2019, granted, now 10,684,078.
Application 16/712,912 is a continuation in part of application No. 16/290,922, filed on Mar. 3, 2019, granted, now 10,954,574.
Application 16/290,922 is a continuation in part of application No. 13/148,003, filed on Dec. 23, 2011, granted, now 10,247,477.
Application 13/148,003 is a continuation in part of application No. 16/101,418, filed on Aug. 11, 2018, granted, now 10,364,475.
Application 16/101,418 is a continuation in part of application No. 15/815,343, filed on Nov. 16, 2017, granted, now 9,963,754.
Application 16/290,922 is a continuation in part of application No. 13/147,996, abandoned, previously published as PCT/US2011/030591, filed on Mar. 30, 2011.
Claims priority of provisional application 61/318,977, filed on Mar. 30, 2010.
Prior Publication US 2020/0348080 A1, Nov. 5, 2020
Int. Cl. F27D 1/12 (2006.01); C21B 7/10 (2006.01); F27D 9/00 (2006.01)
CPC F27D 1/12 (2013.01) [C21B 7/10 (2013.01); F27D 9/00 (2013.01); F27D 2009/001 (2013.01); F27D 2009/0062 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A single-mounting stave cooler for use in a furnace, comprising:
a cast iron stave body in which are fixed but not bonded a liquid coolant steel piping;
wherein, such absence of bonding prevents cracks in the cast iron stave body from propagating through into the liquid coolant steel piping;
a single protrusion and jacketing steel-to-steel welding collar with a proximal end embedded, or otherwise anchored into a backside of the cast iron stave body, and configured and relatively positioned to enable the stave cooler to hang and be entirely supported by a distal end passed from only inside and through a single gas-sealable penetration of a steel containment shell;
wherein, all external piping connections of the liquid coolant steel piping within are collected together as a single group and routed through and passing between the proximal and distal ends of the single steel-to-steel welding collar.