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Class Information
Number: 137/908
Name: Fluid handling > Respirator control
Description: Art collection drawn to respirator control.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8550077 Ventilator control system utilizing a mid-frequency ventilation pattern Oct. 8, 2013
8496005 Breathing mask and regulator for aircraft Jul. 30, 2013
8443826 Demand valve for gas mixing May. 21, 2013
8327849 Oscillating positive expiratory pressure device Dec. 11, 2012
8225785 Vibratory PEP therapy system with medicated aerosol nebulizer Jul. 24, 2012
8011380 Single component two-stage regulator Sep. 6, 2011
7938141 Single component two-stage regulator May. 10, 2011
7836886 Breathing mask and regulator for aircraft Nov. 23, 2010
7628152 Breathing regulator with nonlinear positive pressure spring Dec. 8, 2009
7373943 Self-contained breathing apparatus facepiece pressure control method May. 20, 2008
7171980 Springless regulator valve assembly Feb. 6, 2007
7100628 Electromechanically-assisted regulator control assembly Sep. 5, 2006
6997206 Pressure Compensating valve Feb. 14, 2006
6994086 Standby regulator for breathing system Feb. 7, 2006
6990995 Valve-leaf protective structure for pressure for regulator of air tank used in diving Jan. 31, 2006
6966316 Clean gas purge for breathing gas regulator Nov. 22, 2005
6957652 Regulator for diving Oct. 25, 2005
6901962 Surge prevention device Jun. 7, 2005
6792947 Flow control valve for manual resuscitator devices Sep. 21, 2004
6708691 Valve and oscillator for producing a pressure waveform Mar. 23, 2004
6634378 Pressure reducing valve Oct. 21, 2003
6622743 Surge prevention device Sep. 23, 2003
6527011 Flexible retainer ring for duck bill valve Mar. 4, 2003
6408845 Respiratory filter Jun. 25, 2002
6006748 Vent valve apparatus Dec. 28, 1999
5771884 Magnetic exhalation valve with compensation for temperature and patient airway pressure induced changes to the magnetic field Jun. 30, 1998
5632298 Resuscitation and inhalation device May. 27, 1997
5549107 Second stage scuba diving regulator Aug. 27, 1996
5497803 Pressure regulator for the first stage of two-stage aqualungs Mar. 12, 1996
5429124 Mouthpiece for semi-closed type of breathing apparatus Jul. 4, 1995
5398714 Resuscitation and inhalation device Mar. 21, 1995
5357950 Breath actuated positive pressure demand regulator with override Oct. 25, 1994
5265596 Device for feeding breathing gas Nov. 30, 1993
5259375 Second stage scuba regulator with balanced piston volume control Nov. 9, 1993
5259374 Diver adjustable control for underwater breathing apparatus Nov. 9, 1993
5233976 Second stage regulator hose with built-in cone adjusting tool Aug. 10, 1993
5231982 Molded nosecup valve assembly Aug. 3, 1993
5222490 Breathing regulator having air injector feature Jun. 29, 1993
5042525 Regulator hanger Aug. 27, 1991
5038774 Process and expander for supplying respiratory gas to an underwater diver Aug. 13, 1991
5035238 Regulator second stage for scuba Jul. 30, 1991
4971108 Inhalation responsive gas pressure regulator Nov. 20, 1990
4899740 Respirator system for use with a hood or face mask Feb. 13, 1990
4856507 Two main piloted valves demand regulator for aviators Aug. 15, 1989
4796618 Breathing regulator apparatus Jan. 10, 1989
4774941 Resuscitator bag Oct. 4, 1988
4712580 Exhalation valve assembly Dec. 15, 1987
RE32553 Exhalation valve assembly Dec. 8, 1987
4693242 Coupling connectors for respirator masks Sep. 15, 1987
4667670 Gas flow control valves May. 26, 1987

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