Intertechnique

Societe De Construction Des Avions Hurel-dubois

Robert Schegerin

Robert R Standish

Raymond H Beaussant

Bernard Laboure

Jacques Frison

The invention relates to a respirator mask with hygienic protection. More specifically, the invention relates to a respirator face mask () which provides physiological protection, comprising: an oronasal face piece (), a semi-flexible lip element () which is used to position the oronasal face piece () on the user's face (), and hygienic protection means () which are removably-positioned at least partially inside the mask (). The aforementioned removable protection means () comprise (i) a first part (a) which provides hygienic protection and (ii) a second part (b) which maintains the hygienic protection means () inside the mask (), said second part (b) co-operating elastically with the above-mentioned semi-flexible lip element () or the face piece ().

Respirator mask with hygienic protection

The invention relates to a respirator mask with hygienic protection. More specifically, the invention relates to a respirator face mask () which provides physiological protection, comprising: an oronasal face piece (), a semi-flexible lip element () which is used to position the oronasal face piece () on the user's face (), and hygienic protection means () which are removably-positioned at least partially inside the mask (). The aforementioned removable protection means () comprise (i) a first part () which provides hygienic protection and (ii) a second part () which maintains the hygienic protection means () inside the mask (), said second part () co-operating elastically with the above-mentioned semi-flexible lip element () or the face piece ().

Individual protective and breathing equipment for contaminated

The equipment, for use by a pilot, is intended to provide the wearer with breathing gas under a pressure greater than ambient pressure. It comprises a mask having a rigid shell provided with fastening straps for holding the mask on the head, with a coupling for feeding breathing gas under pressure, and with a face cover of elastomer material terminated by an internal sealing lip for pressing against the face. The lip is connected to a front portion of the face cover that is secured to the shell by at least one thin deformable fold. Resilient elements are provided along the fold to exert a force that varies little with the amount of deformation and press the lip against the face.

Face mask with lip, fold, and resilient spring means to improve seal

An individual protective equipment for use in a hostile environment comprises a closed suit including a flexible gas-tight garment and a helmet having a transparent visor and having a gas-tight connection with the garment. The equipment also includes a portable tank for storage of liquefied breathing gas and a heat exchanger having a primary circuit whose inlet is connected to an outlet of the storage tank and whose outlet feeds a breathing circuit. A gas motor is connected to receive a flow of breathing gas evaporated in the primary circuit and delivers the flow to the breathing circuit. A blower driven by the motor is inserted in a garment ventilation circuit including the secondary circuit of the exchanger.

Protective equipment including a closed suit

An Equipment for respiratory protection against pollutants, for use at low altitude comprises a face cover fitted with an atmospheric air supply comprising a filter, a rotary fan to compensate for the head loss due to the filter, and a flexible hose, as well as a self-contained electric power source for energizing the rotary fan, supplying a rated voltage V.sub.0. The fan supplies, under its rated voltage V.sub.0, an air flow rate higher than that necessary for the wearer when the latter is in rest condition, but far lower than the air flow rate required in case of abnormal activity. A pressure sensor causes a temporary increase in the voltage applied to the fan when the overpressure prevailing in the face cover with respect to the surrounding is lower than a predetermined value.

Equipment for respiratory protection against pollutants

Thrust reverser for a jet engine of the type with doors equipped with auxiliary flaps. The invention relates to thrust reversers with doors 13 having a front deflector 15. The door is equipped, on its inner face, with one or two auxiliary flaps 16 articulated about axles 17 and controlled by a lever 21 articulated on the door at 22 and stressed into a retracted flap position by means of a spring 24. At the end of closure of the door, the end 31 of the lever interacts with a stop 33 which ensures that the lever tilts and that the flap 16 moves away from the door 13.

Growing community of inventors

Jouy en Josas, France

Robert Schegerin