16results about "Oxygen respirators" patented technology

A protective hood in a vacuum bag including a flexible shell that is folded when stored and when unfolded is pulled through an open base of the flexible shell and over the head of a user. The hood includes a visor and an articulated device rigidly attached to the open base to be placed around the neck of the user when the flexible shell is pulled over the head of the user. The articulated device includes at least two rigid portions connected by a joint that allows these two rigid portions to transition from folded, which inhibits the head of the user from entering the hood, to unfolded, which allows the head of the user to enter the hood. The hood includes a handle rigidly attached to the top of the flexible shell to be accessible to the user when the flexible shell is folded.

The present invention relates to an industrial dust mask including an oxygen generating element, and more particularly, to an industrial dust mask including a mask body, a fixing band for fixing the mask body to a face of a wearer, an exhaust unit formed in an outer surface area of the mask body and provided with an exhaust port for discharging exhaled air of the wearer to the outside, and an oxygen generating element inserted into an area of the exhaust unit, which receives water vapor and carbon dioxide generated by breathing of the wearer and generates oxygen by a chemical reaction. A through hole is formed in the mask body and the exhaust unit so that a part of the exhaled air of the wearer discharged to the outside through the exhaust port of the exhaust unit is transferred to the oxygen generating element inserted in the exhaust unit through the through hole to generate oxygen. The oxygen generated by the oxygen generating element is supplied to the wearer through the through hole when the mouth and nose of the wearer inhale.

The invention relates to a protective hood (1) for use in a bag, in particular a vacuum bag, the hood comprising: a flexible housing (2) configured to be stored in a folded state and to be placed on the head of a user in an expanded state through an open base (3) of the flexible housing; goggles (7); a hinge device rigidly attached to the open base and configured to be positioned around the neck of the user when the flexible housing is worn on the head of the user, the hinge device comprising at least two rigid components connected by a joint, the two rigid components are allowed to change from a folded position for preventing the head of the user from entering the hood (1) to an unfolded position for allowing the head of the user to enter the hood (1); a handle (10) attached to the flexible housing, the handle being positioned on top of the flexible housing (2) so as to be accessible by a user when the flexible housing is in the folded state.

A portable oxygen generation system is provided that includes a reaction chamber, a supply system for supplying and controlling a hydrogen peroxide solution to the reaction chamber, and a cooling / condensing system for cooling the hot oxygen and water vapor leaving the reactor and condensing away the water. The portable chemical oxygen generation system produces breathable, humidified oxygen that is substantially free of hydrogen peroxide and other contaminants at a controlled flow rate and temperature for extended periods of time.

The utility model belongs to the technical field of respirators, and particularly relates to an oxygen production tank which comprises a tank body for air circulation, a plurality of partition plates are arranged in the tank body in the air flowing direction, and the partition plates are arranged in parallel in the direction perpendicular to the air flowing direction. A reaction flow channel is formed in a gap between every two adjacent partition plates, the side wall of each reaction flow channel is provided with groove positions for positioning a medicament, the groove positions are in a long strip shape in the gas circulation direction, and the multiple groove positions are sequentially arranged side by side in the direction perpendicular to the gas circulation direction; the plurality of slots on the two adjacent clapboards are arranged in a staggered manner; according to the utility model, the medicament can be ensured to be firmly fixed and stable in the reaction flow channel without moving, so that the influence of dust generated by the movement of the medicament on the breath of a user can be greatly reduced; and the reaction can be performed in sequence along the flowing direction of the gas, so that the overall reaction balance of the medicament is ensured, the use efficiency of the medicament is improved, and waste is avoided.

To improve a portable system for production of oxygen.SOLUTION: A portable oxygen generating system is provided which comprises a reaction chamber, a feed system for providing and controlling hydrogen peroxide solution to the reaction chamber, and a cooling / condensing system for cooling the hot oxygen and water vapor leaving the reactor and condensing and removing water. The portable chemical oxygen generation system produces humidified, breathable oxygen, which is substantially free of hydrogen peroxide and other contaminants, at a controlled flow and temperature over an extended period of time.SELECTED DRAWING: Figure 8

The invention relates to a protective hood (1) in a bag, in particular a vacuum bag, the hood comprising: - a flexible shell (2) configured to be stored in a folded state and to be pulled, in an unfolded state, through an open base (3) of the flexible shell and over the head of the user; - a visor (7); - an articulated device rigidly attached to the open base and configured to be placed around the neck of the user when the flexible shell is pulled over the head of the user, the articulated device comprising at least two rigid portions connected by a joint that allows these two rigid portions to transition from a folded position, which prevents the head of the user from entering the hood (1), to an unfolded position, which allows the head of the user to enter the hood; - a handle (10) rigidly attached to the flexible shell, this handle being placed on top of the flexible shell (2) in such a way as to be accessible to the user when the flexible shell is in the folded state.

The present invention relates to a wet smoke-proof mask capable of generating oxygen and, specifically, comprises: a mask body formed in a half-folded shape and, when unfolded, formed in a shape that simultaneously shields the mouth and nose of a wearer; an exhaust valve which is provided in one area of the outer surface of the mask body, and which has an exhaust port so that the exhaled air of the wearer can be discharged to the outside; a filter unit formed at the inner side of the mask body; and an oxygen generation unit, which is provided on the outer surface, of the filter unit, positioned to be adjacent to the face of the wearer, so as to supply, to the wearer, oxygen generated when the mask body is unfolded, wherein the oxygen generation unit includes: a Tyvek filter made of a Tyvek material and formed in a size corresponding to the size of the filter unit; a reaction solution supply unit which is positioned within the Tyvek filter, and which includes a plastic pack containing a reaction solution and porous fibers covering the plastic pack; and an oxygen generation member formed of an oxygen-generating compound that receives the reaction solution supplied from the reaction solution supply unit and causes a chemical reaction to generate oxygen, wherein one region of the plastic pack of the reaction solution supply unit is torn when the mask body is unfolded, so that the reaction solution is supplied to the oxygen-generating member so as to generate oxygen.

Provided are: a mask including an oxygen-generating composition usable in a disaster situation such as a fire or in alpine environments in which oxygen is in short supply; and a manufacturing method thereof. The mask including an oxygen-generating composition comprises: a filter sheet; an oxygen-generating container coupled to the filter sheet; an oxygen-generating material stored in a sealed state inside the oxygen-generating container; and wearing straps connected to both ends of the filter sheet, wherein the wearing straps include two or more first wearing straps and second wearing straps of different length.

The utility model relates to the technical field of respiratory protection equipment, in particular to a chemical oxygen generating respirator which comprises a mask, an oxygen generating box and an air bag. An air outlet pipe of the mask is communicated with an air inlet of the oxygen generation box; an air outlet of the oxygen generating box is communicated with an inlet of the air bag; an outlet of the airbag communicates with an air inlet pipe of the mask; a conical heat dissipation frame is arranged in the middle of the top end of the air bag and penetrates through the air bag in the thickness direction of the air bag. The inlet is formed in the bottom end of the airbag; an outlet of the air bag is formed in the top end of the air bag and located above the conical heat dissipation frame. By ingeniously arranging the mounting positions of the inlet and the conical heat dissipation frame on the air bag and the conical structure of the conical heat dissipation frame, the flowing path of air in the air bag is prolonged, efficient heat dissipation is conducted through the conical heat dissipation frame, and the cooling effect of the air bag on oxygen is improved.

The portable wearable oxygen generation suit comprises a coat, a power source, an oxygen generator, an adapter tube and a display screen, the display screen is fixedly arranged on a first front piece of the coat, and the adapter tube is fixedly arranged on a second front piece of the coat; the two adjacent side edges of the first front piece and the second front piece are buckled through a buckling assembly. The power supply is arranged on the first front piece and / or the second front piece; the oxygen generator is fixedly arranged on the rear piece; the power supply is electrically connected with the oxygen generator; the oxygen generator is connected with the display screen through a signal line, an oxygen generation outlet of the oxygen generator is communicated with one end of the adapter tube through the connecting tube, and the other end of the adapter tube is communicated with the oxygen inhalation mask. According to the portable wearable oxygen generation suit, the power supply, the oxygen generator and the adapter tube are fixedly arranged on the coat, so that the oxygen generator and the oxygen conveying hose connected with the adapter tube are stably fixed, and the portability and the application reliability of the oxygen generator are improved.

The utility model relates to the technical field of self-rescuers, and discloses a smooth-breathing reciprocating compressed oxygen self-rescuer which comprises a body, a compressed oxygen bottle and a medicine bin are arranged on the body, the medicine bin is provided with an inner cavity, medicine used for absorbing carbon dioxide is arranged in the inner cavity, and a first connector and a second connector which are communicated with the inner cavity are arranged on the medicine bin. An air bag is connected between the compressed oxygen bottle and the first connector, an oxygen outlet of the compressed oxygen bottle is communicated with the first connector through the air bag, the second connector is connected with a breathing apparatus, and the airflow directions of the first connector and the second connector are opposite when a human body breathes through the breathing apparatus. The reciprocating type compressed oxygen self-rescuer capable of breathing smoothly is simple in structure and low in production cost, and breathing is smooth when the reciprocating type compressed oxygen self-rescuer is used; when a human body breathes once, internal gas can flow through the medicament twice, so that the absorption efficiency of the medicament on carbon dioxide is improved, the absorption is more sufficient, the carbon dioxide concentration is prevented from rising too fast, and the safe use time of the self-rescuer is prolonged.

The present invention relates to a modular filter and a mask comprising the same, in which external air flows in through a terminal inflow part of the filter, and passes through the filter while moving in a wide side direction of the filter, thereby extending a movement path in the filter, therefore, the limitation on the selective removal of various pollutants and the filtering function caused by the thickness of the existing filter can be improved.

A method of generating oxygen includes introducing a hydrogen peroxide solution (at least 39.5%) into a reactor that has a passage, an oxygen outlet at one end of the passage, a water outlet at another end of the passage, and an inlet between the ends of the passage. Silver flakes are packed tightly within the passage forming interstices to accommodate fluid flow in a substantially restricted manner such that substantial fluid flow only occurs under influence of a pressure differential in the passage that exceeds a predetermined threshold value associated with the fluid. The silver flakes catalyze a decomposition reaction of the hydrogen peroxide into water and oxygen. The hydrogen peroxide and the decomposition reaction move in a stepwise, periodic manner through the interstices from the inlet toward the water outlet. The oxygen and water vapor flow toward the oxygen outlet.

Redundant electrochemical systems and methods for vehicles are described. The systems include a first electrochemical device located at a first position on the vehicle wherein the first electrochemical device is configured to generate at least one of inert gas, oxygen, and electrical power and a second electrochemical device located at a second position on the vehicle wherein the second electrochemical device is configured to generate at least one of inert gas, oxygen, and electrical power. The first electrochemical device is configured to operate in a first mode during normal operation of the vehicle and a second mode when the second electrochemical device fails, wherein in the second mode, the first electrochemical device provides the at least one of inert gas, oxygen, and electrical power for at least one vehicle critical system of the vehicle.