Repair of double shell heat exchangers

Details Repair of double shell heat exchangers Repair of double shell heat exchangers

1981-02-23

1984-02-14

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Repairing

2940215, 2940209, 138 98, 137315, 52514, B23P 700, D06F 7900

Patent

active

044307888

ABSTRACT:
A method and apparatus for sealing a hole in the inner wall of a double wall heat exchanger in which cover means is positioned in biased relationship to the hole and a frame positioned in the opening through which the cover means is inserted against the hole.

REFERENCES:
patent: 1542351 (1925-06-01), Andrew et al.
patent: 2638774 (1953-05-01), Wieman
patent: 3690084 (1972-09-01), Leblanc
patent: 3834107 (1974-10-01), Standing
patent: 3936988 (1976-02-01), Miceli
patent: 4145800 (1979-03-01), Scholz
patent: 4354332 (1982-10-01), Lentz

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