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
Process for preventing polymerization of cracked volatile products during pyrolysis and gasification
Photon density wave based determination of physiological blood parameters
Antisense modulation of C-reactive protein expression
Rechargeable battery
Tactile output device for computing device notifications
Push button
Light fixture
  Randomly Featured Patents
Combined dumbbell and container
Error preventing device for an electronic engine control apparatus
Method and apparatus for printing high resolution images using reflective LCD modulators
Hand operated device for controlling characteristics of an MRI image, and the like
Demulsifiers for mixtures of middle distillates with fuel oils of vegetable or animal origin and water
Pulp based clay and preparation of pulp based clay
Toner conveying apparatus for supplying toner to a developing apparatus
Horseshoe puzzle
Resist pattern forming method, supercritical processing solution for lithography process, and antireflection film forming method
Facsimile machine