Abstract: A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

Abstract: A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

Abstract: A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

Abstract: A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

Abstract: A helmet is provided which includes a helmet shell defining a cavity. The helmet shell has left and right helmet mounting sections defined on left and right sides thereof, and the helmet includes a visor mounting system comprising a primary visor connector made of a single piece and adapted for connection with the left and right helmet mounting sections. The helmet further has a primary visor removably and pivotally connected to the primary visor connector and adapted to pivot about a primary pivot axis.

Abstract: A helmet having a helmet shell with an inner surface defining a cavity and a frontal opening is provided. The helmet includes a liner assembly for engagement with the helmet shell within the cavity, and which has a lateral liner portion including left and a right liner portions having an outer surface complementarily shaped relative to left and right inner surface portions of the inner surface, respectively. The left liner portion includes a left chin segment, and the right liner portion includes a right chin segment, with the chin segments being configured to engage one another proximate a front section of the helmet. The liner assembly also includes a central liner portion engageable between the left and right liner portions and having an outer surface complementarily shaped relative to a central portion of the inner surface portion for engagement therewith.

Abstract: A visor assembly of a helmet having a helmet shell is provided. The visor assembly includes a visor pivotally connectable to the helmet shell via left and right visor mounting sections. The visor has an inner surface facing a cavity of the helmet shell and an outer surface, and is provided with a heating system. The visor assembly further has a connection assembly including an electrical connector located on the outer surface of the visor proximate a front portion thereof. The electrical connector is operatively connected to the heating system and is adapted to be connected to a power cable for providing electrical power to the heating system. The visor assembly also includes a cable retaining element located on the outer surface of the visor proximate one of the visor mounting sections. The cable retaining element has a clip adapted to removably attach the power cable on the visor.

Abstract: A helmet including a visor assembly having a breath guard is provided. The visor assembly includes a visor pivotally connected to the helmet shell and having an inner surface facing the cavity when in the lowered position. The visor assembly further includes a breath guard interface provided below the visor and a breath guard which has a visor interface connected to the breath guard interface of the visor assembly. The breath guard includes a flexible member connected to and extending from the visor interface and a contact surface shaped and configured to engage the wearer's face around the nose and mouth for deflecting humid air away from the inner surface of the visor. The flexible member has a channel extending along the visor interface having a substantially V-shaped cross-section configured to allow the flexible member to be deformed when raising the visor.

Abstract: A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

Abstract: A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

Abstract: A helmet is provided. The helmet includes a helmet shell and a mounting system laterally positioned on the helmet shell. The helmet further includes a visor removably and pivotally connected to the mounting system, the visor being movable between lowered and raised positions. Finally, the helmet includes a peak removably connected to the mounting system, the mounting system being operable to disengage the visor and the peak upon manual operation thereof. A mounting system for customizing a helmet is also provided. Finally, a method of configuring the helmet is provided.

Abstract: A helmet including a visor assembly having a breath guard is provided. The visor assembly includes a visor pivotally connected to the helmet shell and having an inner surface facing the cavity when in the lowered position. The visor assembly further includes a breath guard interface provided below the visor and a breath guard which has a visor interface connected to the breath guard interface of the visor assembly. The breath guard includes a flexible member connected to and extending from the visor interface and a contact surface shaped and configured to engage the wearer's face around the nose and mouth for deflecting humid air away from the inner surface of the visor. The flexible member has a channel extending along the visor interface having a substantially V-shaped cross-section configured to allow the flexible member to be deformed when raising the visor.

Abstract: A helmet is provided. The helmet includes a helmet shell and a mounting system laterally positioned on the helmet shell. The helmet further includes a visor removably and pivotally connected to the mounting system, the visor being movable between lowered and raised positions. Finally, the helmet includes a peak removably connected to the mounting system, the mounting system being operable to disengage the visor and the peak upon manual operation thereof. A mounting system for customizing a helmet is also provided. Finally, a method of configuring the helmet is provided.

Abstract: A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

Abstract: An apparatus including a motor that has a rotatable output shaft extending outward from the motor and defining a rotational axis. The apparatus also includes a coupler that is coupled to the output shaft for rotation therewith, and a coil spring that is coupled to the coupler without external attachment means such that rotation of the coupler is transferred to the coil spring.

Abstract: An apparatus including a motor that has a rotatable output shaft extending outward from the motor and defining a rotational axis. The apparatus also includes a coupler that is coupled to the output shaft for rotation therewith, and a coil spring that is coupled to the coupler without external attachment means such that rotation of the coupler is transferred to the coil spring.

Abstract: A module has a housing and a tube-sheet. Hollow fiber membranes are potted in the tube-sheet with their ends open. Mechanical interference prevents excessive movement of the tube-sheet along the length of the housing. A gasket is placed in a groove between the tube-sheet and the housing, opening towards the outer face of the tube-sheet. A cap is secured and sealed to the end of the housing. To construct the module, membranes are placed inside of the housing with their ends protruding. A potting fixture is attached to the end of the housing over the ends of the membranes and protruding into the end of the housing so as to form the groove. Liquid potting material is injected into the potting fixture and solidified into a tube-sheet. The potting fixture is removed and the ends of the fibers are cut open. The module may be used, for example, to dehydrate a fermentation product vapour mixture fed through the lumens of the fibres by extracting water vapour permeated into the housing under partial vacuum.