公开(公告)号：US3853519A

公开(公告)日：1974-12-10

申请号：US29455272

申请日：1972-10-03

Applicant: AMERICAN AIR FILTER CO

Inventor： YORK J

IPC: B01D46/30 ,  B01D39/14 ,  B01D46/12 ,  G21F9/00 ,  G21F9/02 ,  B01D39/02

CPC classification number: B01D46/0036 ,  B01D46/0006 ,  B01D46/30 ,  Y10S55/31

Abstract: A gas filter of the type having a flow-through housing with a plurality of removable gas filter elements disposed therein, each filter element comprised of a frame perimetrically connecting opposed flow-through sidewalls of texturized expansiblecontractable sheet material, said filter elements containing activated granular carbon, the flow-through sidewalls exerting a positive compacting pressure on the contained granular carbon thereby preventing settling and channeling, and maintaining a gas flow-path of a minimum preselected length through the activated carbon.

Abstract translation: 一种具有流通壳体的气体过滤器，其中设置有多个可除去的气体过滤器元件，每个过滤元件由围绕组织化的可膨胀的可收缩片材的相对的流过侧壁的框架构成，所述过滤元件包含激活的 颗粒状碳，流通侧壁对所含的颗粒碳施加正的压实压力，从而防止沉降和引导，并且通过活性炭维持最小预选长度的气体流路。

公开(公告)号：US3759287A

公开(公告)日：1973-09-18

申请号：US3759287D

申请日：1972-03-06

Applicant: AMERICAN AIR FILTER CO

Inventor： YORK J

IPC: F16K17/18 ,  F16K17/00 ,  F16K45/00

CPC classification number: F16K17/006 ,  Y10T137/778

Abstract: A two-way pressure relief assembly for a plenum chamber including, at least two ported valve seats communicating with an outlet of the plenum chamber, and a plurality of relief valves adapted to respond to fluid pressure surges of a preselected magnitude, one valve cooperating with each ported valve seat, with at least one of the valves being responsive to fluid pressure surges of a preselected magnitude in a direction counter to the direction of fluid pressure surges to which the remainder are responsive.