Protective clothing for an operator working in a hermetic enclosure

Claim 2

Protective clothing for an operator working in a hermetic enclosure at a positive pressure to the ambient atmosphere comprising a wall for the enclosure, a hermetic garment forming an integral part of the enclosure wall and having a transparent helmet to protect the head and interchangeable gloves, two walls for said garment including an inner wall in contact with the operator and an outer wall common to the enclosure wall, the two walls co-operating to bound an inflatable zone; permeable means disposed on the inner wall providing a permanent leak from the inflatable zone to the inside of the protective clothing, and means for adjusting the rate of leakage flow from inside the protective clothing to the ambient atmosphere are provided on the hermetic garment.

Claim 3

Protective clothing according to claim 1 said permeable means permitting permanent leakage from the inflatable zone to the inside of the protective clothing being a porous inner wall.

Claim 4

Protective clothing according to claim 1 wherein the means for permitting and adjusting the rate of leakage flow from inside the protective clothing to the ambient atmosphere is a calibrated valve disposed on the inner wall and through which the interior of the protective clothing communicate with the ambient atmosphere.

Claim 5

Protective clothing according to claim 1 wherein the means for permitting and adjusting the rate of leakage flow from inside the protective clothing to the ambient atmosphere includes an apron consisting of a downward extension of the inner wall from a point below the said inflatable zone and adapted to surround the base of the bust of the operator, and resilient clamping means adjacent the bottom of said apron for clamping the apron to the operator''s hips.

Claim 6

Protective clothing according to claim 1 wherein the means permitting permanent leakage from the inflatable zone to outside the protective clothing are apertures in the inner wall.

Claim 7

Protective clothing according to claim 5 wherein the apertures are distributed in regions disposed in the areas of the garment adjacent the armpits, the wrists, the neck, the thighs, and the ankles of the operator.

Claim 8

Protective clothing for an operator working in a hermetic enclosure at a negative pressure to the ambient atmosphere, comprising a wall for the enclosure, a hermetic garment forming an integral part of the enclosure wall and having a transparent helmet to protect the head and interchangeable gloves, two walls for said garment including an inner wall in contact with the operator and an outer wall common to the enclosure wall, the two walls cooperating to bound an inflatable zone; permeable means disposed on the inner wall providing a permanent leak from the inflatable zone to the inside of the protective clothing, and means for adjusting the rate of leakage flow from inside the protective clothing to inside the hermetic enclosure are provided on the hermetic garment.

Claim 9

Protective clothing for an operator working in a hermetic enclosure at a negative pressure to the ambient atmosphere, comprising a wall for the enclosure, a hermetic garment forming an integral part of the enclosure wall and having a transparent helmet to protect the head and interchangeable gloves, two walls for said garment including an inner wall in contact with the operator and an outer wall common to the enclosure wall, the two walls cooperating to bound an inflatable zone; permeable means disposed on the inner wall providing a permanent leak from the inflatable zone to the inside of the protective clothing, and means for adjusting the rate of leakage flow from inside the protective clothing to inside the hermetic enclosure are provided on the hermetic garment.

Claim 10

Protective clothing for an operator working in a hermetic enclosure at a positive pressure to the ambient atmosphere comprising a wall for the enclosure, a hermetic garment forming an integral part of the enclosure wall having a transparent helmet to protect the head and interchangeable gloves, two walls for said garment including an inner wall in contact with the operator and an outer wall common to the enclosure wall, the two wall co-operating to bound an inflatable zone, permeable means disposed on the inner wall providing a permanent leak from the inflatable zone to the inside of the protective cloThing, means for adjusting the rate of leakage flow from inside the protective clothing to the ambient atmosphere on the hermetic garment said permeable means being a porous inner wall, said porous inner wall being a closewoven cloth perveous over its entire superficial area to the respiratory gas responsible for inflation.

Claim 11

Protective clothing for an operator working in a hermetic enclosure at a positive pressure to the ambient atmosphere comprising a wall for the enclosure, a hermetic garment forming an integral part of the enclosure wall having a transparent helmet to protect the head and interchangeable gloves, two walls for said garment including an inner wall in contact with the operator and an outer wall common to the enclosure wall, the two wall co-operating to bound an inflatable zone, permeable means disposed on the inner wall providing a permanent leak from the inflatable zone to the inside of the protective cloThing, means for adjusting the rate of leakage flow from inside the protective clothing to the ambient atmosphere on the hermetic garment said permeable means being a porous inner wall, said porous inner wall being a closewoven cloth perveous over its entire superficial area to the respiratory gas responsible for inflation.

Claim 12

Protective clothing for an operator working in a hermetic enclosure at a positive pressure to the ambient atmosphere comprising a wall for the enclosure, a hermetic garment forming an integral part of the enclosure wall and having a transparent helment to protect the head and interchangeable gloves, two walls for said garment including an inner wall in contact with the operator and an outer wall common to the enclosure wall, the two walls co-operating to bound an inflatable zone, permeable means disposed on the inner wall providing a permanent leak from the inflatable zone to the inside of the protective clothing, and means for adjusting the rate of leakage flow from inside the protective clothing to the ambient atmosphere on the hermetic garment said permeable means being a porous inner wall, the inner wall being a hermetic material having in some regions cloth zones for the local passage of the respiratory gas responsible for inflation.

Claim 13

Protective clothing for an operator working in a hermetic enclosure at a positive pressure to the ambient atmosphere comprising a wall for the enclosure, a hermetic garment forming an integral part of the enclosure wall and having a transparent helment to protect the head and interchangeable gloves, two walls for said garment including an inner wall in contact with the operator and an outer wall common to the enclosure wall, the two walls co-operating to bound an inflatable zone, permeable means disposed on the inner wall providing a permanent leak from the inflatable zone to the inside of the protective clothing, and means for adjusting the rate of leakage flow from inside the protective clothing to the ambient atmosphere on the hermetic garment said permeable means being a porous inner wall, the inner wall being a hermetic material having in some regions cloth zones for the local passage of the respiratory gas responsible for inflation.

Claim 14

Protective clothing according to claim 9 wherein the cloth zones are disposed in the areas of the garment adjacent the armpits, the wrists, the neck, the thighs, and the ankles of the operator.