Charles E Duncan

US Patent:

43996299, Aug 23, 1983

Filed:

Mar 5, 1981

Appl. No.:

6/240688

Inventors:

Charles P. Duncan - Walnut Creek CA

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

A01K 7300

US Classification:

43 4

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.