3m Innovative Properties Company

Jonas N A Frejd

Björn Daniels

Marcus T R Wiederkehr

Oskar E Juhlin

Niklas Lilenthal

Arne O Linderstrand

Mats Ulrik Sernfält

Stefan G Strandberg

Mats U Sernfalt

Stefan Aberg

Mats U SERNFÄLT

A system which is composed of a blower unit for a powered air purifying respirator and an electrically powered accessory. The blower unit has a blower device and a battery for powering the blower device. And the accessory is equipped with a power connector. The blower unit provides a power outlet for connection with the power connector. The power connector has a plug. Furthermore the power connector has an unplug lever for retracting the plug for unplugging. The unplug lever and the plug are connected by a pivot joint that forms a pivot axis. The unplug lever forms a handle arm and a counter arm that extend away from the pivot joint in opposite directions.

Air respirator accessory having a battery connector plug with an unplug lever

Protective headgear including central, left lateral, and right lateral trunks, and which may include at least one external, remote handle for directing air flow.

Protective headgear with adjustable air supply

A protective headgear () comprising: a protective helmet () that defines an interior space (), that comprises an inward major surface, and that comprises a forward window with a windowpane (); a head suspension that is connected to the helmet; and an air supply module () mounted at least partially within the interior space defined by the helmet, wherein the air supply module comprises central, right lateral, and left lateral trunks () that are configured so that when the module is mounted within the interior space defined by the helmet, selected central, left and right areas of the inward major surface of the helmet combine with the central, left lateral and right lateral trunks of the air supply module to respectively define a central air supply passage and left and right lateral air supply passages for delivering air to a wearer of the protective headgear, and, wherein the air supply module comprises an external, remote handle () that is remotely connected to an air valve that is operative to control a rate at which air is directed into the central air supply passage in comparison to a rate at which air is directed into the left and right lateral air supply passages.

An elongated guide that is removably attachable to a hardhat and a visor that is removably mountable to the elongated guide.

Elongated guide, and visor removably mountable thereto

An appliance mounting devicethat is adapted for securement to head gear. The devicehas an elongated guidethat is adapted for removable attachment to the head gearsuch that a lengthwise dimension of the elongated guideis at least generally coincident with a sagittal plane. An appliance holdersupports an applianceand can engage the elongated guideto allow for adjustment of the position of the appliancealong the elongated guide

Growing community of inventors

St. Skedvi, Sweden

Jonas N A Frejd