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Class Information
Number: 128/201.11
Name: Surgery > Respiratory method or device > Draw-type snorkel
Description: Subject matter for use under water including means extending to the surface of the water to allow the user to draw air from the atmosphere with no means to supply respiratory gas under positive pressure.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8496000 Dry snorkel Jul. 30, 2013
8479726 Breathing assistance apparatus Jul. 9, 2013
8382542 Two fin swimming apparatus Feb. 26, 2013
8347882 Diving snorkel-mounted water stopper with multiple separated air valve openings independently controllable by float units arranged in one-to-one correspondence thereto Jan. 8, 2013
8297276 Dry snorkels and methods Oct. 30, 2012
8291899 Snorkel Oct. 23, 2012
8166968 Scupper valve snorkel May. 1, 2012
8011364 Exhalation valve for use in an underwater breathing device Sep. 6, 2011
8011363 Exhalation valve for use in a breathing device Sep. 6, 2011
7997275 Cough catcher with protection against germ transmission by hand contact Aug. 16, 2011
7954489 Waterproof structure of a respiratory tube Jun. 7, 2011
7946290 Underwater exhaust system and method May. 24, 2011
7909030 Elliptical purge valve for snorkels Mar. 22, 2011
7882833 Periphery view mask and remote breathing assembly Feb. 8, 2011
7823585 Snorkel clip Nov. 2, 2010
7793657 Facemask snorkel Sep. 14, 2010
7793656 Underwater breathing devices and methods Sep. 14, 2010
7782253 Navigation system and method for a snorkeler Aug. 24, 2010
7717108 Hinged headbrace for front-mounted swimming snorkel May. 18, 2010
7708012 Dry top snorkel having a locking device to prevent inadvertant closure May. 4, 2010
7634997 Snorkel with mask strap retaining device Dec. 22, 2009
7621268 Low physiological deadspace snorkel Nov. 24, 2009
7617825 Closure device of a second-stage regulator for scuba divers Nov. 17, 2009
7357134 Underwater exhaust system Apr. 15, 2008
7234463 Periphery view goggle and remote breathing assembly Jun. 26, 2007
7234461 Arching snorkel Jun. 26, 2007
7222621 Breathing tube fastening structure May. 29, 2007
7191779 Snorkel with whistler Mar. 20, 2007
7165545 Splash protection device for snorkel Jan. 23, 2007
7163012 Diving snorkel assembly including a casing Jan. 16, 2007
7134433 Snorkel clip Nov. 14, 2006
7089929 Snorkel mouthpiece set Aug. 15, 2006
7077127 Flip top valve for dry snorkels Jul. 18, 2006
7069927 Waterproof device for a snorkel Jul. 4, 2006
7047965 Fresh air swimming snorkel May. 23, 2006
7032591 Snorkel with improved purging system Apr. 25, 2006
6994085 Splash guard for a snorkel Feb. 7, 2006
6994084 Anti-surf head on dry-type snorkel Feb. 7, 2006
6983746 Underwater exhaust system Jan. 10, 2006
6981500 Respiratory tube without fastening assemblies Jan. 3, 2006
6915801 Combination oxygen supplement and swimming snorkel apparatus Jul. 12, 2005
6915800 Water intake prevention device for a snorkel Jul. 12, 2005
6904910 Flip top valve for dry snorkels Jun. 14, 2005
6843246 Snorkel splash protector Jan. 18, 2005
6827083 Snorkel Dec. 7, 2004
6820615 Mask tightening strap Nov. 23, 2004
6745762 Snorkel with luminous device Jun. 8, 2004
6736136 Snorkel fixture of swimming mask May. 18, 2004
6679253 Automatic water stopper for snorkel Jan. 20, 2004
6668822 Snorkel with improved purging system Dec. 30, 2003

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