National Technology & Engineering Solutions of Sandia, LLC

Mayo Foundation for Medical Education and Research

Zachary Medaris Wilson

Eric A Shaner

Stephen Neidigk

Thomas John Rogers

Todd Andrew Barrick

Edward G Winrow

Lorenzo Jiron

Katherine Anne Barrick

Devyani Lal

Mark B Wehde

John M Angeli

Victor H Chavez

A reusable, protective face mask has two detachable filter trays that attach on each side of the mask, a soft elastomeric face seal, and straps to go around the user's head. Exhalations and inhalations can pass through the same filter material. The filter trays can accept arbitrary filter media. A forward-facing port can be used to increase speech intelligibility by transmitting sound through a diaphragm without a prohibitive amount of distortion. Manufacture of the mask is facilitated because the mask body and the other mask components can be produced by injection molding. Decontamination and sterilization are facilitated because the mask can be fully disassembled.

Reusable filtering face mask

A tamper-resistant threaded fastener including a circular head having a slot formed in the head transverse to the longitudinal axis, the slot having an enlarged region intermediate an apex and a base of the slot. A cap member includes a head having a drive feature formed therein, the head extending to a first shank portion, extending to an enlarged second shank portion, extending to a foot. The cap member is insertable in the slot only from a direction transverse to the longitudinal axis. During rotational installation of the fastener and cap member in a threaded counterbored opening for securing a barrier for protecting an asset, the foot shears inside the slot at a predetermined rotational drive force, the cap member being rotatable in the opening and protectively covering the fastener head.

Tamper-resistant fastener

Growing community of inventors

Albuquerque, NM, United States of America

Zachary Medaris Wilson