Patent ID: 11946696
Assignee: ILLINOIS TOOL WORKS INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 10:
11. An end barrier box for blocking ambient gases from entering a hearth of a reflow oven, comprising:
a box body, wherein the box body comprises a bottom, the bottom has a mounting bottom plate, the box body forms a top opening, the box body further comprises a pair of side walls, and the side walls are oppositely disposed; and
a plurality of deflectors, wherein each of the plurality of deflectors is mounted between the pair of side walls, each of the plurality of deflectors comprises at least three fins, and the at least three fins are mounted on the mounting bottom plate and extend upward from the mounting bottom plate;
the end barrier box is assembled below at least two guide rails of the reflow oven, and a first width is included between the adjacent guide rails of the at least two guide rails;
a second width is included between one guide rail of the at least two guide rails and the corresponding side wall;
a third width is included between the other guide rail of the at least two guide rails and the corresponding side wall; and
at least one fin of the at least three fins has a width smaller than at least one width of the first width, the second width and the third width such that at least one fin of the at least three fins is removable from the top opening.