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Class Information
Number: 441/30
Name: Buoys, rafts, and aquatic devices > Buoy > Inflatable
Description: Buoy wherein the body of the buoy is expanded from a collapsed position by a gaseous medium.










Sub-classes under this class:

Class Number Class Name Patents
441/31 Having chemical reactor to produce gas 12


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8430704 Flotation device Apr. 30, 2013
7862394 Apparatus having a buoyant structure that resists rotation Jan. 4, 2011
7303453 Collapsible inflatable dive buoy Dec. 4, 2007
7179145 Deployable and autonomous mooring system Feb. 20, 2007
7083484 Inflatable dive marker and collection bag Aug. 1, 2006
7083483 Inflatable sailboat racing mark that can be reduced in size for storage while inflated Aug. 1, 2006
7001235 Surface marker buoy apparatus Feb. 21, 2006
6860773 Inflatable dive marker and collection bag Mar. 1, 2005
6652339 Inflatable dive marker and collection bag Nov. 25, 2003
6592416 Target for naval gunfire Jul. 15, 2003
6457527 Apparatus and method for adding buoyancy to riser with inflatable floatation collar Oct. 1, 2002
6257337 Submerged riser tensioner Jul. 10, 2001
6254445 Inflatable chemical foam injected buoy Jul. 3, 2001
6162106 Inflatable flag buoy workable in both the daytime and the night Dec. 19, 2000
5839931 Safety stop anchor Nov. 24, 1998
5795203 Air-launched buoy Aug. 18, 1998
5735719 Combination inflatable dive flag and float Apr. 7, 1998
5520486 Diver safety apparatus and method May. 28, 1996
5516317 System to sink and float buoys May. 14, 1996
5406294 Floating antenna system Apr. 11, 1995
5299962 Buoy for storing line connected to underwater object Apr. 5, 1994
5141458 Marker buoy Aug. 25, 1992
5073136 Collapsible sonobuoy floatation device Dec. 17, 1991
4832288 Recovery system May. 23, 1989
4722498 Inflatable air foil Feb. 2, 1988
4717092 Torpedo recovery device Jan. 5, 1988
4702715 Automatic emergency rescue apparatus Oct. 27, 1987
4675686 Flotation bag assembly Jun. 23, 1987
4666338 Ocean bottom seismometer release mechanism May. 19, 1987
4662301 Floating platform for decorative articles May. 5, 1987
4586456 Inflatable balloon distress marker having small article containing compartment therein May. 6, 1986
4578041 Water actuated inflatable float device Mar. 25, 1986
4573933 Floating search and rescue inflatable pyramid Mar. 4, 1986
4507093 Buoy device for automatic raising of submerged objects Mar. 26, 1985
4497632 Inflatable buoy Feb. 5, 1985
4493664 Sonobuoy float inflation and depth selection initiators Jan. 15, 1985
4487151 Floating highway Dec. 11, 1984
4482333 Automatic inflation system Nov. 13, 1984
4406631 Flotation device Sep. 27, 1983
4405099 Apparatus for activating system in response to impact Sep. 20, 1983
4403888 Oil containment booms Sep. 13, 1983
4380440 Droppable airborne buoy Apr. 19, 1983
4379534 Cargo lift system Apr. 12, 1983
4340626 Diffusion pumping apparatus self-inflating device Jul. 20, 1982
4325653 Oil containment booms Apr. 20, 1982
4312484 Inflatable flow control Jan. 26, 1982
4309786 Buoy flotation system Jan. 12, 1982
4295438 Rescue locator signal package Oct. 20, 1981
4281427 Warning and signalling device, especially for maritime purposes Aug. 4, 1981
4271552 Torpedo floatation device Jun. 9, 1981

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