Floating bag for pollution study
AssigneeCase Existological Laboratories, Ltd.
InventorJohn N. Case
Life of this patent
Estimating the term…
Abstract
A method of deploying a floating bag for observing marine life in a natural but controlled environment. The water level in the bag is slightly higher than the level of the water in the bag to maintain turgidity and stabilize the deployed bag. Also, the bag can easily be filled with water, substantially without the use of pumps.
Claims3
A method of filling a bag for deployment in a fluid environment comprising the steps of (1) providing the bag around its mouth with bouyant means, (2) placing te bag, in collapsed condition, at a distance below the surface of a body of fluid corresponding to the distance through which it is desired to take a sample, and (3) releasing the bag so that the mouth thereof floats to the surface, to capture a column of fluid in the bag.
A method of deploying a fluid filled bag in a marine or like environment, comprising providing a bag of a flexible material having a resistance to stretching, supporting the bag from the surface of the water by flotation means, and raising the level of the fluid within the bag to a level slightly above the level of the fluid in the bag at which the fluid within the bag and the water around the bag are in equilibrum for maintaining turgidity in the total structure so as to resist disturbance of the bag due to variations in the conditions in the environment in which the bag is deployed.
Dependencies are inferred from the claim text.