Filter for railroad car control valve pipe bracket and access pl

Details Filter for railroad car control valve pipe bracket and access pl Filter for railroad car control valve pipe bracket and access pl

1998-04-29

2000-10-17

Simmons, David A.

Gas separation

Combined or convertible

55463, 55506, 55521, 55529, 210445, 210446, B01D 4610

Patent

active

061324833

ABSTRACT:
An insert filter designed for press-fitting into airway port of hardware apparatus of a railway air brake system whereby the airway ports have at least two different diameters, the insert filter having a ring member defining an opening, a plurality of spaced support ribs extending from a first side of the ring member and intersecting at a location spaced from that first side of the ring member, and a screen mesh supported by the plurality of spaced rib supports defining a volume adjacent to the opening through the ring member. Each of said support ribs having a primary interface rib surface adjacent to an outer edge surface of the ring member adapted to engage inner edge surfaces of a larger, first airway port, and a secondary interface rib surface adjacent to the primary interface rib surface adapted to engage inner edge surfaces of a smaller second airway port.

REFERENCES:
patent: 1022277 (1912-04-01), Taack
patent: 1158989 (1915-11-01), Berry et al.
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patent: 2068837 (1937-01-01), Aronson
patent: 2068858 (1937-01-01), Jones
patent: 3592768 (1971-07-01), Parker
patent: 3762564 (1973-10-01), Weedon et al.
patent: 3794180 (1974-02-01), Blocker
patent: 4702754 (1987-10-01), Blocker
patent: 5269824 (1993-12-01), Takita
patent: 5807415 (1998-09-01), Leo

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