Method for manufacturing and reinforcing a catalytic unit intend

Details Method for manufacturing and reinforcing a catalytic unit intend Method for manufacturing and reinforcing a catalytic unit intend

1987-04-24

1988-05-03

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

422180, B21D 5300

Patent

active

047410825

ABSTRACT:
The invention relates to a method for making and reinforcing a catalytic unit intended for purifying exhaust gases, in which method a helical catalytic unit is formed from a corrugated foil band (2) and a straight foil band (3), placed one on top of the other, by securing the foil bands, coated in advance with both a layer of support material and a layer of catalyst material, to a central shaft (4), around which the catalytic unit is formed. Thereafter, end supports (5) are secured to the ends of the shaft in such a way that they press somewhat to inside the unit and prevent movement of the foil bands in relation to each other.

REFERENCES:
patent: 4186172 (1980-01-01), Scholz
patent: 4220625 (1980-09-01), Toh et al.
patent: 4381590 (1983-05-01), Nonnenmann et al.
patent: 4521947 (1985-06-01), Nonnenmann et al.
patent: 4598063 (1986-01-01), Retallick

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