Matches 151 - 191 out of 191 < 1 2 3 4
Match Document Document Title
4706663 Particle catcher for inhalation devices  
The present invention is a particle catcher for reducing the velocity of aerosol medications discharged from an inhalation device and the amount of large particle droplets entrained therein. A...
4614186 Air survival unit  
An emergency breathing device for use in a toxic environment including a clear plastic hood having sealing means about the neck or body to form a generally airtight enclosure about the wearer's...
RE32171 Method for the manufacture of an electret fibrous filter  
A method for the manufacture of an electrically charged fibrous filter from a highly molecular non-polar fiber material wherein a web film of the fiber material is continuously fed and...
4537748 Apparatus for treating compressed air for breathing purposes  
Apparatus for treating a supply of compressed air containing carbon monoxide but substantially devoid of free water and of relative humidity sufficient for comfortable breathing, to render it...
4523588 Protective pillow assembly  
A protective pillow assembly incorporates an air-impervious transparent plastic hood. In case of fire, the hood is placed over the user's head, the assembly being so arranged that the user breathes...
4463757 Covering device for tracheostomy stoma  
The tracheostomy stoma covering device is for filtering and conditioning the air inhaled through the stoma. The device includes an encasement member having generally flexible mesh front and back...
4402317 Smoke inhalation safety device  
A porous bag filled with relatively small, loose, oil coated wood chips permits sufficient air intake and adequately prevents smoke inhalation when placed over the nose and mouth while in most...
4386948 Filter drive  
A filter device used to filter medical anesthesia gases and other inhalable respiratory gases. The filter device has a ported housing, and a filter member within the housing. The filter member is a...
4382440 Smoke and pollutant filtering device  
A smoke and pollutant filtering device comprising a mask having a filter composed of a series of contiguous, serial layers of filtering material. The filter consists of front and rear gas permeable...
4360018 Anesthesia system and method of filtering respiratory gas  
An anesthesia system with a filter located between a Y-connector and a mask or endotracheal tube for connecting with a patient. The filter operates two ways in that it filters during both...
4215682 Melt-blown fibrous electrets  
A persistent electric charge is introduced into melt-blown fibers during the melt-blowing process. When these charged fibers are incorporated into fibrous webs, they provide unique properties,...
4212846 Breathing apparatus chemical canister with dust seal  
A breathing apparatus chemical canister includes a central vertical tube, around which there is a body of chemical granules covered by an upper sheet of filtering material provided with inner and...
4181512 Bacteria filters with transparent housings  
A bacteria filter for use in anesthesiology and respiratory care systems to filter fluid flow at a desired point in a system. The filter includes an enlarged non-conductive, transparent tubular...
4159954 Isolator filter  
An isolator filter device having a microporous film membrane strengthened by a support screen, the membrane and screen being bonded between front and rear housing members. Each of the housings is...
4099526 Filter-type gas mask and breathing device arranged in a carrying case  
A filter type gas mask enclosed within a carrying case and cover comprising shock absorbing means extending from a filter head within the enclosure towards inner sidewalls of said cover and said...
4077784 Electric filter  
An electric filter for separating impurities from air including a housing which contains separator plates disposed in spaced relationship and formed of conductive material and alternate ones of...
4071026 Intra-oral filtering device  
An intra-oral filtering device for filtering and removing noxious materials from the air during the breathing process includes a housing having a cavity portion therein which contains a filter...
4036224 Portable conditioned air breathing pipe  
A portable conditioned air breathing pipe is provided in which a heat conductive tube having a burner or other suitable heating means therein is mounted in the pipe bowl in sealed relationship with...
4032311 Tank filter  
A filter formed of minute fibers of borosilicate glass is mounted to the inlet-outlet valve of a rechargeable pressure vessel to remove entrained particles from fluid entering and exiting the vessel.
4011067 Filter medium layered between supporting layers  
A new filter medium, which can remove a high percentage of fine particles from a gas stream while causing a relatively low pressure drop in the gas stream, comprises a base porous web, one or more...
3932153 Nebulizer bacteria filter  
A bacteria filter includes a pair of generally conical housing sections having confronting marginal flanges adapted to be welded together to seal the sections into an integral filter housing. The...
3920009 Tracheostomatic bandage  
A bandage for laryngotomy patients comprises an air inlet portion having an outer fibrous layer consisting of a fibrous material designed and dimensioned to collect particles and bacteria without...
3893458 Heat sterilizable patient ventilator  
An improved heat-sterilizable patient ventilator characterized by a ported center-body, a shell formed of heat-sterilizable material mounted on the center-body and defining an hermetically sealed...
3853512 AIR PURIFIER  
To enhance the dust collecting efficiency and to make it possible to collect dust of relatively large particle sizes in a compact construction, an air purifier comprises dust collecting wall means...
3815754 BOX FILTER  
A disposable box filter is provided comprising a box housing in at least two portions and having a fluid chamber with two fluid ports, and a filter element in sheet form extending across the fluid...
3811436 STOMA FILTER GUARD  
Disclosed is a filter and guard assembly for a trachea neck stoma as used, for example, by a laryngectomee. The assembly comprises a frame and a foamed polyester urethane filter element or pad...
3782083 DISPOSABLE GAS FILTER  
A disposable filter is provided that is especially suited for filtering gases, and for manufacture in a small size, comprising a housing in at least two portions defining therewith a fluid chamber...
3773043 RESPIRATOR HAVING A MOUTHPIECE ARRANGED LATERALLY OF THE FILTER  
A respirator includes a housing with an annular interior wall in which is mounted a filter. An outer wall of the housing has an inlet at one side and a flow space from the inlet through a...
3745991 ENVIRONMENTAL CONTAMINATION CONTROL DEVICE  
An improved device for a medical treatment station which may include inducing and collecting sputum without contaminating the environment. A patient is positioned to inhale an aerosol from a...
3724172 FILTERED AIR BREATHING ZONE  
A highly portable, localized filtered air breathing zone for a patient suffering from those respiratory diseases or who require protection from air borne contamination. The filtered air in which...
3724174 ELECTRICALLY OPERATED DUST MASK  
A breathing filter for dust filtering masks in which electrodes in the form of insulated metal wires are employed. The polarity of the electrodes changes in periods which are of greater duration...
3672129 APPARATUS FOR DISPENSING STERILE GAS  
A portable unit for sterilizing gas to cleanse it of foreign bodies, especially living microorganisms, comprising a portable frame supporting a sub-micron filter through which the gas is passed...
3548823 RESPIRATORS  
3529595 PROSTHETIC ARTICLE OF APPAREL FOR TRACHEOTOMY PATIENTS  
3464410 RESPIRATORY PAD  
3457927 FILTER  
3330271 Stoma button and filter  
3316904 Filtering web for face masks and face masks made therefrom  
3220409 Face mask  
3116969 Chemical coating for filters  
0999451 Title is not available  
Matches 151 - 191 out of 191 < 1 2 3 4