Resources Contact Us Home
Marker buoy

Image Number 5 for United States Patent #7824238.

A self-setting marker buoy comprising a floatation unit (20), including a hollow upper member (22), a separable end cap closure lower member (36) with a line storage spool (38) having a uniquely shaped line-trapping element (52) on its lower flange (50), anchor line (44), and anchor (68). The upper member (22) can be tapered inwardly toward the top to allow multiple upper members (22) to nest together for storage. Lower members (36) can also stack together. The line-trapping element (52) is in the shape of a disk having alternating slots (54) and spokes (56) at the perimeter thereof. When tossed onto the water, the weight of the anchor (68) causes the floatation unit (20) to tilt sufficiently to allow the release of anchor line (44) as the anchor (68) descends to the bottom of the water body. When the anchor (68) reaches the bottom, ballast (62) in the lower member (36) rights the floatation unit (20), and the line-trapping element (52) comes into effect to prevent any further release of anchor line (44).

  Recently Added Patents
UV-curable low surface energy coatings
Methods and systems for reducing web page transmission bandwidth
Methods and apparatus to protect and audit communication line status
Framework for specifying access to protected content
Method for reducing power consumption of WAPI mobile terminal and WAPI mobile terminal
Process flow to reduce hole defects in P-active regions and to reduce across-wafer threshold voltage scatter
Watch module
  Randomly Featured Patents
Apparatus for processing material, such as a biomass or feed for cattle, having a rotating disc mounted to rotating column
JFET analog switch with gate current control
Fuel injection nozzle
Pre-emphasis circuit
Measurement of round trip latency in write and read paths
Organic light emitting display device having improved brightness
Contactor control system
Flame cutting machine
Boring tool with a double cutter head, in which the working load is prevented outside the elastic range of the cutting bit holder material in the vicinity of the outermost radial positioning
Internal combustion engine with supercharger of positive displacement design