Hub ring and supporting plate for a filter and methods for manuf

Details Hub ring and supporting plate for a filter and methods for manuf Hub ring and supporting plate for a filter and methods for manuf

1997-09-24

1998-11-03

Walker, W. L.

Metal working

Method of mechanical manufacture

Multiperforated metal article making

29897, 210346, 210486, 210487, 210488, B23P 1516

Patent

active

058291385

ABSTRACT:
Disclosed is a hub ring for a filter wherein a supporting member having a plurality of supporting portions is interposed between a pair of keep plates, a supporting plate for a filter wherein a plurality of wave portions extending substantially in the circumferential direction are arranged in the radial direction, and methods for manufacturing these members. The hub ring has a great opening ratio to achieve a low pressure loss property and causes substantially no residence of polymer, and the hub ring can be manufactured at a low cost. The supporting plate has high pressure resistance, low-pressure loss property, good directivity of polymer flow and excellent polymer mixing effect, and it is suitable for use as a retainer disposed inside of a filter.

REFERENCES:
patent: 2263853 (1941-11-01), Re Qua
patent: 4876007 (1989-10-01), Naruo et al.
patent: 5055192 (1991-10-01), Artinyan et al.

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