Resources Contact Us Home
Browse by Category: Main > Transportation & Automotive
Class Information
Number: 441/9
Name: Buoys, rafts, and aquatic devices > Buoy > Marker buoy > Having means to release buoy upon submergence > Gas assisted
Description: Buoy wherein the release of the buoy is assisted by a gas and wherein the release or generation of the gas is initiated by sinking of the body or vessel.

Patents under this class:

Patent Number Title Of Patent Date Issued
8613635 Fluid activated retrieval device Dec. 24, 2013
6332819 Object retrieval device used in water Dec. 25, 2001
5911542 Unsinkable floating dock system Jun. 15, 1999
5857881 Automatically inflating bladder and line severing means for rod and reel Jan. 12, 1999
4932910 Emergency location marker system Jun. 12, 1990
4540370 Retriever for submerged objects Sep. 10, 1985
4295438 Rescue locator signal package Oct. 20, 1981
3997930 Retrieving device Dec. 21, 1976
3982294 Retriever Sep. 28, 1976

  Recently Added Patents
Fast and compact circuit for bus inversion
Backlight assembly, method for driving backlight assembly, and liquid crystal display having the same
Electric discharge machining hole drilling
Latch-up free ESD protection
Method and apparatus for internet on-line insurance policy service
Methods for increasing efficacy of FOLR1 cancer therapy
Assisting apparatus, method, and program for checking crosstalk noise between hierarchized modules in a semiconductor circuit
  Randomly Featured Patents
Multiplexed signal transmitter/receiver, communication system, and multiplexing transmission method
Swell latch
Photosensitive composition, compound for use in the photosensitive composition, and pattern-forming method using the photosensitive composition
Infusion package
Multicolor writing implement
Lubricating oil composition
Method of gasifying carbonaceous materials
Analog/digital converter with threshold test and conversion modes
Fishing apparatus
Tape printing apparatus with tape cassette identifying unit