Abstract: An aircraft emergency apparatus including a disposable air filtration mask for short term breathing in normally disabling breathing conditions, and the combination of such an air filtration mask with other aircraft emergency apparatus to enhance accessability and use thereof by aircraft occupants.

Abstract: Portable emergency breathing apparatus is disclosed which is comprised of a unitary, generally flat manifold having opposite ends and top and bottom sides and a manifold passageway between the opposite ends. Three parallel, laterally juxtaposed compressed gas containers are mounted on the bottom side of the manifold by means of coupling components extending through the manifold from the top side and into internally threaded necks of the containers. Each of the coupling components provides flow communication between the interior of the corresponding container and the manifold passageway, and a shut-off and pressure reducing valve assembly is mounted on the manifold between two of the containers. The valve assembly has upper and lower portions respectively, adjacent the top and bottom sides of the manifold with the lower portion disposed in the space between the necks of the two adjacent containers.

Abstract: A sight-corrective lens is attached between an eyepiece of a respirator and the eye of the wearer by a monocular mount into which the lens fits as if into a standard spectacle frame. Attachment devices for the mount are apertured lugs on a surround of the eyepiece and tabs on the mount. By making the tab and mount in one position of different tangential width from the tab and mount in the other, a desired unique positioning of the lens is assured. The mount may have a seal ring of which the deformable ridge is pretensioned against the eyepiece by the fitting of the tabs in the lugs to prevent ingress of moisture or particles between them.

Abstract: A self-contained jet pump type breathing apparatus is provided for introducing gases into the lungs of a patient having an inspiratory jet pump for sweeping gases toward the patient, an expiratory jet pump for sweeping exhaled gases away from the patient and an absorber for absorbing carbon dioxide from the exhaled gases which are again supplied to the respiratory jet pump. An anesthetic introduction conduit permits the flow of anesthetic gases into the breathing apparatus. In addition, a jet producer device, is also provided, which obtains fresh compressed gases from the absorber and compressor and supplies pulsating pressurized gases to the respiratory jet pumps.

Abstract: This invention relates to a gas mask used for refuge in a fire, for example. The gas mask comprises a cylindrical mask body of fire-proof soft rubber material detachably connected to goggles of transparent or semitransparent fire-proof material. A cartridge is detachably inserted into and secured to the cylindrical mask body and comprises filter layers and a pack of catalyst which is a composite of copper oxide and manganic oxide and a drying agent laminated on the catalyst.

Abstract: For use in a safety mask comprising a body adapted to be placed over the nose and mouth wherein the body has an inlet valve, a filter associated with the inlet valve and an outlet valve, the arrangement comprising a cap adapted to be positioned over the filter, and having an opening in a wall thereof, a tube connected to the opening, and to a valve adapted to be attached to the body of the wearer. The valve includes an inlet for connection to a source of clean air, a first outlet to the tube connected to the opening in the mask and a second outlet for attachment to a paint spray gun.

Abstract: A connector swivel for connecting between a supply tube and an endotracheal tube accommodates movement of the patient. The swivel connector has an angled central member, with the axes of its ends intersecting each other at an obtuse angle. The central member has end pieces rotatably connected to each end. One of the end pieces is also angled, with its axes intersecting at an obtuse angle. The other end piece is straight and cylindrical.

Abstract: A portable oxygen inhaler comprises a chlorate candle, a mask, a tube connecting the chlorate candle and the mask, and a handily-sized case housing these and other component parts as an integral unit. When an actuation pin provided on the chlorate candle is pulled out of the case, oxygen is immediately generated and supplied to the mask.

Abstract: A device for securing a respiratory appliance during respiratory therapy having a head covering made of a material which conforms to the shape of the patient's head, and two elongated thread-like members positioned on opposite sides of the head covering at points which approximately correspond to the temporal areas of the patient's head, the thread-like members being adjustable to vary the distance between the respiratory appliance and the head covering so that the respiratory appliance is securely positioned within the patient's nares.

Abstract: An aerosol inhalation device in pocket-size which has one dosage dispensing position and one storage position, and which comprises a two-part telescoping deceleration chamber (2, 3) with rectangular cross-section and a socket (1) for an exchangeable aerosol container. The socket is connected with the inner chamber part (2) so that it can be telescopically inserted therein to form a storage position. In dosage dispensing position the socket is extended from the deceleration chamber, pivoted at an angle relative to the longitudinal axis of the chamber and locked in the angle.

Abstract: Breathing apparatus comprising a mask shaped to contact a user's face and define a breathing chamber in communication with the nose of the user, a gas supply container carried by the mask having a movable valve control element, and an operator manipulated by the mouth of the user for moving the control to open the valve to introduce gas to the breathing chamber. The gas supply is controlled by the mouth of the user and inhaling from and exhaling to the chamber is through the nose of the user. The operator is carried by the body for association with the mouth of the user for moving the valve control element between open and closed positions in response to manipulation by the mouth of the user, and an exhalation valve is in the mask in communication with the breathing chamber.

Abstract: This invention relates to a face mask fabricated from air impervious material, having a single forward protrusion forming a pivoted ambient air intake and exhaust orifice, which contains a heating element to elevate the temperature of the incoming ambient air, and which is designed to direct all of the exhausted air over the heating element to thereby increase its efficiency.

Abstract: In a system for controlling fluid flow from a reservoir to a patient, a first signal representative of reservoir weight and a second signal representative of desired weight are compared digitally to generate a signal representative of their dissimilarity. An analog strain gauge may be used together with an analog-to-digital converter for generating the reservoir weight signal.

Abstract: A pressure regulatory valve system for a breathing system in a deep diving apparatus comprises a pair of pressure relief valves, one adapted for connection to a gas supply line extending from a source of breathable gas provided by a diving bell to the diving helmet of a diver working out of the bell, and the other being adapted for connection to a gas return line extending from the diving helmet to the bell. The relief valves are adapted to be controlled by differences between the pressure in the helmet and the pressure in the bell so that when the diver moves to levels above that of the bell the relief valve connected to the supply line responds to reducing helmet pressure in an opening manner and vents gas from the supply line to the bell, while the relief valve connected to the return line responds in a closing manner.

Abstract: A system for applying a controlled atmosphere for breathing by a patient, in the treatment of croup or the like, includes a head piece which has a portion extending over the temple, a portion extending over the top of the head in the form of adjustable straps, and an elastic strap extending behind the head. A front support frame is connected to the head piece, and a U-shaped flexible gas delivery tube is supported on the frame. Nebulized oxygen enriched fog may be delivered from a nebulizer to the tube and emitted through orifices formed on an inside surface of the tube, at the ascending portions near the corners of the horizontal bottom portion, to form streams which are directed toward each other and which coalesce at a region in front of the face and mouth of the patient, for breathing by the patient. The support frame is pivotally mounted on the headgear so that it may be moved from its normal lowered position to a raised position to move the delivery tube out of the patient's way for eating and drinking.

Abstract: A method and apparatus for introducing oxygen or a saline solution directly into the trachea in order to facilitate respiration. The apparatus includes a sharp pointed magnetic stylet, a similarly shaped rounded end magnetic probe, and a radiopaque flexible bulbed end plastic catheter tube with three equally spaced axially embedded memory wires.The small diameter catheter tube and the incorporated magnetic stylet is inserted through the wall of the throat and thorugh the flesh and wall of the trachea between the second and third tracheal rings.The retraction and removal of the magnetic stylet causes the expansion of the catheter and locks the tube end inside the tracheal wall. The catheter tube is the vessel for the conveyance of oxygen or a saline solution into the trachea. Insertion of the magnetic probe into the catheter tube causes the contraction of the catheter tube end and allows same to be removed and reinserted as necessary.

Abstract: A head covering is disclosed having a face mask portion and a rear portion which substantially completely surrounds the head of the wearer and reaches to the neck, where it may be gathered by a length of elastic, and which is formed of a laminated material incorporating, as a layer, a mat of generally discontinuous thermoplastic microfibers and, as a second layer, a web of continuous thermoplastic filaments, the laminated material providing a combination of bacteria barrier and air permeability properties substantially throughout the head covering which is effective for containment of bacteria while retaining air permeability sufficient to allow the wearer to breathe through the material in the face mask portion where the nose and mouth are covered.

Abstract: A device for admixing liquid anesthetics into the respiratory gas to be supplied to a patient makes it possible to monitor the concentration, the flow of respiratory gas, the mixture ratio, and the flow of anesthetic. Errors may thus be indicated and safety is increased in medical practice. The device utilizes the phenomonen that during the evaporation of an anesthetic admixed with the respiratory gas, the temperature in the thermally insulated ambience of the mixing chamber drops by an amount depending on the ratio of the vaporized anesthetic to the respiratory gas, thus on the concentration. The temperatures are measured at the inlet of the mixing chamber by an inlet sensor and an intermediate sensor, and at the outlet of the mixing chamber by an outlet sensor.

Abstract: Breathing apparatus comprising a body in the form of a mask shaped to be worn over a portion of a user's face, a breathing passage formed in the body having an outlet in one end only in communication with one of either the nose or the mouth of the wearer and having an inlet at the other end thereof, a container holding a quantity of gas for breathing adapted for connection to the mask body with the container outlet in communication with the breathing passage and the container releasing a flow of gas to the breathing passage when connected to the body, an exhalation passage defined by the body in communication only with the other of the mouth or nose of the user and being open to the atmosphere, and a mouthpiece element associated with the passage leading to the mouth and adapted to be received between the teeth of the wearer in gripping engagement to facilitate holding the apparatus in place on the head of the user.

Abstract: A discharge valve is provided at the lower side of a smoke-proof, poison-proof respirator, and an opening part is provided at the front face thereof, a filter vessel being detachably fitted in this opening part. The filter vessel constitutes a cylinder having an outer end wall and an inner end wall, and intake openings are formed in both end walls. Within the filter vessel, in successive order from the outer end wall to the inner end wall, an electrostatic smoke-filtering material, an activated carbon fiber material, and a noble-metal catalyst are arranged. Outside gases are sucked in successively through these elements and, finally passing by an intake valve provided in the filter vessel inner end wall, enter the inner side of the respirator.