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Class Information
Number: 441/98
Name: Buoys, rafts, and aquatic devices > Water rescue or life protecting apparatus > Personal flotation device > With mechanical inflation means > By gas generation from chemical reaction
Description: Device wherein a gas is generated by the reaction of reagents to fill the expandable chamber.

Sub-classes under this class:

Class Number Class Name Patents
441/99 With manually operated valve 7
441/100 With soluble or deformable element 6

Patents under this class:

Patent Number Title Of Patent Date Issued
7264525 Flotation device Sep. 4, 2007
6974357 Flotation device and method of manufacturing the same Dec. 13, 2005
6767267 Apparatus to be worn as a necklace around the neck of a small child, which, when submerged in water, will inflate an float the child's head above water Jul. 27, 2004
6659825 Self-inflating child floatation device Dec. 9, 2003
6379207 Inflatable life buoy launcher gun Apr. 30, 2002
6066017 Inflatable, noncollapsible, personal flotation device May. 23, 2000
5988438 Apparatus for rapid inflation of inflatable object and related method Nov. 23, 1999
5954556 Emergency flotation device Sep. 21, 1999
5941752 Inflatable enclosure having discrete chambers therein Aug. 24, 1999
5823840 Emergency flotation device Oct. 20, 1998
5603648 Outdoor survival garment Feb. 18, 1997
4929214 Inflatable enclosure and means to inflate same May. 29, 1990
4734072 Anti-exposure suit Mar. 29, 1988
4705050 Moisture-activated floatation device Nov. 10, 1987
4482081 Water activated inflation mechanism Nov. 13, 1984
4246672 Automatic inflatable safety work vest Jan. 27, 1981
4097241 Pyrotechnic tire inflator Jun. 27, 1978
4012211 Filter for occupant restraint system fluid supply Mar. 15, 1977

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