Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1991-07-16
1993-05-18
Robinson, Ellis P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428137, 428134, 428136, 428220, 428338, 428688, 165166, 165167, F28F 308, F28F 2104, B32B 310
Patent
active
052120040
ABSTRACT:
In the board of ceramic material for the construction of permeable structures, the board has three rows of holes which extend parallel to one another and are arranged symmetrically to the axis of symmetry. Three recesses of differing length are arranged between the rows of holes. The recesses intersect the board edge, the longest and one of the two shorter ones opening out at the same board edge and the shortest being opposite the second longest. The webs remaining between the recesses or the recess and the board edge have a length of 25%.+-.0 to 6% in relation to the length of the board determined by the direction of the rows of holes. The boards are stacked in succession to form various layers of the plate heat exchanger as the holes of the stacked boards form continuous channels and the recesses form shallow channels which extend substantially transversely to the continuous channels.
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patent: 2656159 (1953-10-01), Holm et al.
patent: 4526635 (1985-07-01), Heinrich et al.
patent: 4880055 (1989-11-01), Niggemann et al.
patent: 4934453 (1990-06-01), Ganz et al.
patent: 4936380 (1990-06-01), Niggemann
patent: 5016707 (1991-05-01), Nguyen
patent: 5099915 (1992-03-01), Van Dyke
Bottcher Jurgen
Ganz Rudolf
Heinz Otto
Honerlage Jorg
Hoechst Aktiengesellschaft
Robinson Ellis P.
Watkins III William P.
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