Metal microfilter
First Claim
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1. A filter comprisinga metal microfilter foil having micropores therein;
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Abstract
A metal microfilter foil is provided with a supporting structure made up of two layers which are deposited on a rear side of the foil. The first layer comprises a plurality of connecting elements of column or web shape which widen at the top to form enlarged portions which merge together to form the second layer leaving open macropores. The continuous supporting structure provides large pores as compared with the micropores of the foil and offer considerable stability.
29 Citations
20 Claims
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1. A filter comprising
a metal microfilter foil having micropores therein; - and
an electroplated open-pore supporting structure supporting said foil and having pores of larger size than said micropores, said supporting structure including a first porous layer of individual connecting elements connected to said foil and a second porous layer connected to said elements of said first layer and having a continuous structure with open macropores. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A filter comprising
a metal microfilter foil having micropores therein; - and
an electroplated open-pore supporting structure supporting said foil and having pores of larger size than said micropores, said supporting structure including a plurality of connecting elements connected to said foil and a plurality of enlarged end portions connected to respective ends of said connecting elements and defining macropores therebetween. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A filter comprising
a metal microfilter foil having micropores therein; -
a first layer of electroplated spaced apart connecting elements connected to said foil; and a second layer of metal connected to said first layer in spaced relation to said foil and having a pattern of macropores therein.
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Specification