公开(公告)号：US20050160911A1

公开(公告)日：2005-07-28

申请号：US10512540

申请日：2003-04-25

Applicant: David Friday ,  John Schlaechter ,  Wayne Ballantyne ,  John Mable ,  Robert Puhala ,  David Pike

Inventor： David Friday ,  John Schlaechter ,  Wayne Ballantyne ,  John Mable ,  Robert Puhala ,  David Pike

IPC: A62B18/08 ,  A62B23/02 ,  B01D46/00 ,  B01D53/02

CPC classification number: B01D39/2058 ,  A62B23/02 ,  B01D39/2062 ,  B01D2239/0464 ,  B01D2239/0492 ,  B01D2239/0618 ,  B01D2239/086 ,  Y10S55/33

Abstract: A filter for a gas mask has an elliptical or circular, convex shape to conform to the curvature of the wearer's face, or a planar shape. The filter comprises a double particulate filter element and a double adsorption filter element configured for axial airflow therethrough with a bifurcated flow pattern. The adsorption filter element comprises a granulated charcoal, a composite material having carbon particles combined with binder particles, or an immobilized bed of charcoal granules and EVA-coated fibers.

Abstract translation: 用于防毒面具的过滤器具有椭圆形或圆形凸起形状，以符合穿着者脸部的曲率或平面形状。 过滤器包括双重颗粒过滤元件和双吸附过滤器元件，其被配置为具有分叉流动图案的轴向气流。 吸附过滤元件包括颗粒状炭，具有与粘合剂颗粒结合的碳颗粒的复合材料，或固定的木炭颗粒和EVA涂覆的纤维。

公开(公告)号：US20070221062A1

公开(公告)日：2007-09-27

申请号：US11385564

申请日：2006-03-21

Applicant: Michael Withiam ,  Fitzgerald Sinclair ,  David Friday

Inventor： Michael Withiam ,  Fitzgerald Sinclair ,  David Friday

IPC: B01D53/02

CPC classification number: B01D53/02 ,  B01D2253/106 ,  B01D2253/108 ,  B01J20/02 ,  B01J20/103 ,  B01J20/18 ,  B01J20/3204 ,  B01J20/3236 ,  B01J2220/42 ,  Y02C20/10

Abstract: An environmental control for use in air handling systems that provides highly effective filtration of noxious gases is provided. Such a filtration system utilizes a novel combination of at least one metal-doped silica-based gel and zeolite materials to trap and/or modify, and remove such undesirable gases (such as ammonia, ethylene oxide, formaldehyde, and nitrous oxide, as examples) from an enclosed environment. The gel component exhibits specific porosity requirements and density measurements; the zeolite component is generally acidic and is preferably not reacted with any salts or like substances. The novel combination of such gels and zeolites permits highly effective noxious gas filtration such that excellent breakthrough results are attained, particularly in comparison with prior media filtration products. Methods of using and specific filter apparatuses are also encompassed within this invention.

公开(公告)号：US20070003762A1

公开(公告)日：2007-01-04

申请号：US11156941

申请日：2005-06-20

Applicant: Michael Withiam ,  Fitzgerald Sinclair ,  David Friday

Inventor： Michael Withiam ,  Fitzgerald Sinclair ,  David Friday

IPC: B32B5/16

CPC classification number: B01D53/02 ,  B01D2253/106 ,  B01D2257/406 ,  B01J20/02 ,  B01J20/103 ,  B01J20/2803 ,  B01J20/28061 ,  B01J20/28071 ,  B01J20/28073 ,  B01J20/28083 ,  B01J20/3204 ,  B01J20/3236 ,  Y10T428/2991

Abstract: The present invention relates generally to an environmental control unit for use in air handling systems that provides highly effective filtration of noxious gases (such as ammonia). Such a filtration system utilizes novel metal-doped silica-based gels to trap and remove such undesirable gases from an enclosed environment. Such gels exhibit specific porosity requirements and density measurements. Furthermore, in order for proper metal doping to take effect, such gels must be treated while in a wet state. The combination of these particular properties and metal dopant permits highly effective noxious gas filtration such that uptake and breakthrough results are attained, particularly in comparison with prior silica gel filtration products. Methods of using and specific filter apparatuses are also encompassed within this invention.

Abstract translation: 本发明一般涉及一种用于空气处理系统的环境控制单元，其提供对有害气体（例如氨）的高效过滤。 这种过滤系统利用新颖的金属掺杂的二氧化硅基凝胶来从封闭的环境中捕集和去除这些不期望的气体。 这种凝胶表现出特定的孔隙率要求和密度测量。 此外，为了适当的金属掺杂生效，这种凝胶必须在潮湿状态下进行处理。 这些特定性质和金属掺杂剂的组合允许高效有害的气体过滤，从而获得吸收和突破性结果，特别是与现有硅胶过滤产物相比。 使用方法和特定的过滤装置也包括在本发明中。