1
James N Matheson, Philip L Lowry: Respirator face mask. U S D, George F Bethel, Patience K Bethel, November 15, 1983: US04414973 (207 worldwide citation)

A respirator face mask formed from a silicone or other vulcanized rubber with a multi-compound curved face seal having a superior configuration for facial fit. The mask is held by four support buttons and two straps attached thereto having a reverse leverage pulldown effect to pull the mask into con ...


2
Christopher Nowacki, Alfred G Brisson: Inhalation valve. Trutek Research, Trexler Bushnell & Wolters, September 11, 1984: US04470412 (132 worldwide citation)

An inhalation valve is presented for use with a known antiasthmatic medication cartridge and mouthpiece to simplify patient inhalation and to improve mist formation. A cylindrical passageway receives the known mouthpiece and is provided with an elastomeric diaphragm having a slit therein. An upstrea ...


3
Roger L Atkins: Jet ventilator system. Bunnell Incorporated, Thorpe North & Western, August 31, 1993: US05239994 (80 worldwide citation)

A jet ventilator system for assisting a person's respiration includes a source of gas under pressure, a tracheal tube for insertion into the mouth and throat of the person, a jet nozzle disposed in the tracheal tube for directing gas pressure pulses toward the end of the tracheal tube inserted into ...


4
Nowacki Christopher, Brisson Alfred G: Inhalation valve.. Trutek Research, March 27, 1985: EP0134847-A1 (76 worldwide citation)

An inhalation valve including means defining a passageway (16) having an entering end (18) and an exit end (22), a mouthpiece (40) at said exit end for receipt in a patient's mouth, means (20) at said entering end for receiving structure for supplying inhalation medication, a diaphragm (58) adjacent ...


5
Christopher Nowacki, Alfred S Brisson: Inhalation valve. Trutek Research, Trexler Bushnell & Wolters, June 26, 1984: US04456016 (74 worldwide citation)

An inhalation valve is provided for testing the breathing capacity of a person. The valve is constructed of two plastic moldings which snap together and trap a flexible elastomeric valve diaphragm between them. The valve is provided with a mouthpipe. Exhalation through the mouthpipe deflects the dia ...


6
Mark Magidson, Otto L Huber: Disposable filter respirator with inner molded face flange. Moldex Metric Products, Charles H Schwartz, Ellsworth R Roston, October 17, 1989: US04873972 (72 worldwide citation)

A filter respirator forming a face mask to be worn upon the face of a user including a support layer of flexible material. The support layer is molded to conform to the contours of the face of the user and forms a flexible support layer for filter material. A separate layer of filter material filter ...


7
Christopher Nowacki, Alfred G Brisson: Collapsible inhalation valve. Trutek Research, Robert M Wolters, January 10, 1989: US04796614 (67 worldwide citation)

A collapsible inhalation valve is provided for administering asthmatic medication or the like. The valve comprises an upright cylindrical air chamber adapted to be held in the hand. A reciprocating member holds a pressurized cartridge of medication for reciprocation between storage position substant ...


8
David T Sladek: Portable chamber for metered dose inhaler dispensers. Thayer Medical Corporation, Cahill Sutton & Thomas, March 21, 2000: US06039042 (65 worldwide citation)

A medication inhalation apparatus for use with an MDI inhaler includes an elongated housing for receiving a plume of medication particles ejected by the MDI inhaler, a mouthpiece, and an inhalation valve disposed between the mouthpiece and the housing. An exhalation valve in the mouthpiece allows ex ...


9
Automatic valve for applying anaesthetics or artificial respiration. Chirana Praha, August 6, 1958: GB799225-A (54 worldwide citation)

799,225. Respiratory &c. appliances. CHIRANA PRAHA, NARODNI PODNIK. Jan. 17, 1955 [Jan. 16, 1954], No. 1384/55. Class 81 (2). A valve which enables an sthetic apparatus to be used for artificial respiration comprises sockets for attaching it to the apparatus and to a mask and an oblique exhalation p ...


10
Marcel Baum: Ventilation system having true valve control for controlling ventilation pressures. Dragerwerk, McGlew and Tuttle, January 20, 1987: US04637386 (49 worldwide citation)

A ventilation system with positive and negative ventilation pressures controllable through a control unit is to be improved with respect to its adaptability, in particular in the generation of high pulse repetition frequencies above the natural breathing frequency. A gas transport element is provide ...