One-piece removable tube lane blocking device for nuclear steam

Details One-piece removable tube lane blocking device for nuclear steam One-piece removable tube lane blocking device for nuclear steam

1985-10-30

1987-05-12

Davis, Jr., Albert W.

Heat exchange

Covered access opening

165160, 122382, F28D 106, F28F 922

Patent

active

046641785

ABSTRACT:
A one-piece removable tube lane block includes an L-shaped angle bar, having one end thereof fixed to the closed end of a cylindrical sleeve and extending axially outwardly therefrom. The outer end of the sleeve has a radially outwardly extending annular retaining flange for engagement with the vessel wall at the outer end of the handhole. The blocking portion is dimensioned to be insertable through the handhole and into the tube lane to a use position with the distal leg of the L-shaped bar disposed perpendicular to the tube sheet and with the mounting sleeve disposed in the handhole and held in place therein by set screws extending radially outwardly through the sleeve.

REFERENCES:
patent: 912067 (1909-02-01), Brown
patent: 3174463 (1965-03-01), Reagan
patent: 4047562 (1977-09-01), Weber
patent: 4105065 (1978-08-01), Chirico
patent: 4407236 (1983-10-01), Schukei et al.
patent: 4508063 (1985-04-01), Monne
patent: 4566406 (1986-01-01), Appleman

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