Collecting apparatus
AssigneeThe United States of America as represented by the United States Department of Energy
InventorCharles P. Duncan
Life of this patent
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Abstract
An improved collecting apparatus for small aquatic or airborne organisms such as plankton, larval fish, insects, etc. The improvement constitutes an apertured removal container within which is retained a collecting bag, and which is secured at the apex of a conical collecting net. Such collectors are towed behind a vessel or vehicle with the open end of the conical net facing forward for trapping the aquatic or airborne organisms within the collecting bag, while allowing the water or air to pass through the apertures in the container. The container is readily removable from the collecting net whereby the collecting bag can be quickly removed and replaced for further sample collection. The collecting bag is provided with means for preventing the bag from being pulled into the container by the water or air flowing therethrough.
Claims7
In a towed type collecting apparatus for small aquatic or airborne organisms having a tapering collecting net and a collecting means removably secured to an apex of said tapering net, the improvement comprising:
- said collecting means consisting of:
- (a) a removable, apertured container, and
- (b) a porous collecting bag removably retained within said container, said collecting bag including an open end portion adapted to be folded over an outer section of said apertured container;
- said collecting bag being retained in said apertured container at least by compression of screw-threaded connecting means for removably connecting said container to said tapering net.
Dependencies are inferred from the claim text.