Compositions – X-ray or neutron shield
Patent
1980-03-17
1981-11-17
Shine, W. J.
Compositions
X-ray or neutron shield
428582, 428592, 428597, 428603, 428604, B01J 3502
Patent
active
043010393
ABSTRACT:
The catalyst support is a spiral formed by winding a single strip of metal upon itself. Indentations in the strip maintain a uniform spacing between the layers in the spiral. The indentations are displayed along the strip in at least two different patterns. Different patterns are wound onto successive layers in the spiral so that the indentations in successive layers cannot coincide and nest together.
REFERENCES:
patent: 3135381 (1964-06-01), Holcombe
patent: 3376120 (1968-04-01), Hiegel
patent: 3770389 (1973-10-01), Kitzner et al.
patent: 3891575 (1976-06-01), Brautigam et al.
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