Avon Protection Systems, Inc.

James Wilcox

Greg Alan Tilley

Christopher G Estkowski

Greg A Tilley

Richard A Fiet

John Patrick Fick

Filter thread converter

A powered air purifying respirator (PAPR) assembly and kit therefore has an elongated hollow belt body having open first and second ends and multiple inlet openings along its length for mounting one or more filter canisters, one or more filter canisters for mounting in the inlet openings for supplying purified air to the interior of the belt body, a motor and driven fan assembly having a fan inlet in communication with each filter canister through the hollow belt body and a fan outlet; and a power source operably mounted to the belt body and connected to the motor. The PAPR assembly forms a portion of a belt or bandolier to be worn around the user's waist, back, or other location, and at least the belt body can be made of a flexible rubber material, such as a Butyl and Silicone blend, or any other suitable material to conform the PAPR belt to the user's body.

Integrated belt and plenum powered air purifying respirator

A filter assembly for use with a respirator may include a conformal filter having a body with at least one filter bed, an input end, and an output end recessed within the body and having an integral threaded connector having external threads adapted to thread onto a respirator inhalation connector, and a threaded connector piece removably mounted to the integral threaded connector of the conformal filter.

Filter asssembly for a respirator

A modular powered air purifying respirator (PAPR) which is comprised of a fan, motor, scroll, and power source mounted within one housing, and which accepts either traditional or conformal filters. Ambient air is drawn into the PAPR module through the attached filter by a fan, which is driven by direct connection to a motor. The pressurized air is then accelerated by an optimized scroll to the outlet in the PAPR housing. The PAPR module can be employed in multiple use configurations. The PAPR module further comprises a removable battery pack module that is easily retained to/removed from the PAPR module, enabling a user to be able to quickly remove a spent battery pack module and install a fresh battery pack module, thereby replacing the batteries within one breath cycle.

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Baltimore, MD, United States of America

James Wilcox