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Class Information
Number: 441/10
Name: Buoys, rafts, and aquatic devices > Buoy > Marker buoy > Having means to release buoy upon submergence > Responsive to hydrostatic pressure
Description: Buoy wherein the securing means is activated by a device which is sensitive to changes in liquid pressure.










Patents under this class:

Patent Number Title Of Patent Date Issued
8578569 Couplers Nov. 12, 2013
8002599 Systems and methods for underwater descent rate reduction Aug. 23, 2011
6878024 Hydrostatic release mechanism Apr. 12, 2005
6561863 Pressure actuated triggering system May. 13, 2003
6224442 Release unit May. 1, 2001
5573343 Hydrostatic release device Nov. 12, 1996
5518430 Triggering mechanism May. 21, 1996
5438949 Hydrostatic release with a composite plunger assembly Aug. 8, 1995
5419725 Triggering mechanism May. 30, 1995
5365873 Hydrostatic pressure sensors Nov. 22, 1994
5199374 Aerial location self-actuating emergency sea surface marker for capsized vessels Apr. 6, 1993
5197911 Automatic release mechanism Mar. 30, 1993
5080684 Floating device for releasing safety equipment Jan. 14, 1992
4981453 Emergency transmitter buoy and bracket assembly Jan. 1, 1991
4968277 Automatic flotation device Nov. 6, 1990
4961714 Mounting arrangement for a marine radio distress beacon Oct. 9, 1990
4848262 Pressure sensitive release device Jul. 18, 1989
4721486 Automatic marker buoy release mechanism Jan. 26, 1988
4668200 Life buoy with a radar responder May. 26, 1987
4571788 Double action pressure release Feb. 25, 1986
4563108 Pressure actuated release mechanism Jan. 7, 1986
4195380 Life saving apparatus for vessels Apr. 1, 1980
4067199 Method and apparatus of launching floats to lighten underwater conduits Jan. 10, 1978
4065823 Hydrostatically activated release mechanism Jan. 3, 1978
4040135 Emergency locator system for locating and retrieving sunken vessels Aug. 9, 1977
4020514 Bottom release mechanism for a sonobuoy May. 3, 1977











 
 
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