Вот чего случайно нашел.... даже патент есть, американский.
Плот для подводной охоты... Весь патент довольно объемный, поэтому только описание, правда на ненашенском
BEST MODE FOR CARRYING OUT THE INVENTION
[0042]
In FIGS. 1-4, a floatable fish box 20 for spear fishing comprises a floatable craft having an external shell 21 with a hollow interior 14 adapted for floating and storing speared fish. The external shell 21 is sufficiently insulated so that the hollow interior 14 is adapted to hold ice and water for preserving any speared fish and food and beverages stored therein. The hollow interior 14 is sufficiently large to store spear fishing equipment in addition to any speared fish. The external shell 21 is preferably formed of blow molded plastic.
[0043]
In FIGS. 1 and 2, the floatable fish box 20 also comprises an elevated hatchway 27 with a top opening 10, a removable cover 12 over the opening, a seal 11 between the cover 12 and the opening 10 and a secure latch 9 to maintain the cover 12 in place over the hatch opening 10 to prevent losing any speared fish and avoid attracting sharks and a handle 13 for pivoting the cover open on a hinge 8 preferably at the front of the cover. The elevated hatch 27 has an external display area on two or more sides for displaying a dive flag 28, as seen in FIGS. 1 and 4.
[0044]
The floatable fish box 20 further comprises a means for storing one or more spear guns comprising paired U-shaped racks 19 attached to the exterior of the shell 21. The device 20 also has a recessed spool 18, rotatable with a handle 26 around a central axle 17, within a recess 25 in the external shell 21 at a front end of the floatable fish box 20, as shown in FIGS. 1 and 2. The recessed spool 18 is adapted for holding line for multiple uses including a spear line, an anchor line, and a towline. The floatable fish box 20 also comprises a handle 24A, 24B, 24C, and 24D on each side of the floatable fish box 20, for grasping while loading in speared fish into the top opening 10 in the hatchway 27. The line may extend out a front opening 23 in the shell 21 communicating with the spool 18.
[0045]
The floatable fish box 20 has a front handle 24A and a pair of rear wheels 29, attached to the rear of the floatable fish box 20 by an axle 16 and brackets 15 as shown in FIG. 4, adapted for transporting the floatable fish box 20 on land and for launching and beaching the floatable fish box 20. The floatable fish box 20 also provides a line securing element, such as a curved bracket 22 attached to the front of the floatable fish box 20, shown in FIGS. 1 and 3, which is adapted to receive a tow line (not shown) for towing the floatable fish box 20 behind a boat.
[0046]
In use the hollow interior 14 of the floatable fish box 20 may be filled with ice, water, beverages and spear fishing equipment. To launch the device 20, the front handle 24A may be lifted, thereby allowing the floatable fish box 20 to rest on a pair of rear wheels 29, and be pulled into the water.
[0047]
After fish have been speared the user may grasp a handle 24A, 24B, 24C, or 2D on a side of the floatable fish box 20, for stability while loading speared fish into the top opening 10 in the hatchway 27. Once the fish are inside the hollow interior 14, the removable cover 12 is placed over the opening in the hatchway 27 and a latch 13 secured to maintain the cover 12 in place over the hatch 27 opening to prevent losing any speared fish and avoid attracting sharks.
[0048]
To beach the floatable fish box 20, the front handle 24A may be lifted, thereby allowing the device 20 to rest on a pair of rear wheels 29, and be pulled to transport the floatable craft 20 on land.
[0049]
It is understood that the preceding description is given merely by way of illustration and not in limitation of the invention and that various modifications may be made thereto without departing from the spirit of the invention as claimed.