Invention Grant
- Patent Title: Layered or mixed sorbent bed protective filtration device
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Application No.: US14462748Application Date: 2014-08-19
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Publication No.: US09908076B2Publication Date: 2018-03-06
- Inventor: Britton G. Billingsley , Larry A. Brey , William Buechter , Pierre Legare , Derek M. Maanum , Gregory W. Peterson , Joseph A. Rossin
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US DC Washington
- Assignee: The United States of America as Represented by the Secretary of the Army
- Current Assignee: The United States of America as Represented by the Secretary of the Army
- Current Assignee Address: US DC Washington
- Agent Ulysses John Biffoni
- Main IPC: B01D53/04
- IPC: B01D53/04 ; B01J20/28 ; B01J20/32 ; B01D39/20 ; A62B9/02 ; A62B23/02 ; A62B7/10 ; B01J20/06 ; B01D53/82 ; B01D53/02 ; A62B18/02 ; A62B19/00
Abstract:
A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.
Public/Granted literature
- US20150283493A1 Layered Or Mixed Sorbent Bed Protective Filtration Device Public/Granted day:2015-10-08
Information query
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