The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 1991
Filed:
May. 02, 1990
Harlon W Breezer, Portage, WI (US);
William F Price, Portage, WI (US);
Penda Corporation, Portage, WI (US);
Abstract
A twin-sheet thermoformed thermoplastic aquatic biomass containment barrier with reinforced hinges is disclosed having a formed first extended linear thermoplastic sheet member which is fused to a formed second linear extended thermoplastic sheet member of substantially the same dimensions as the first member to form a composite unit member having two ends and air pockets formed between the two sheets to give buoyancy to the segment. Reinforcing thermoplastic inserts are located between the first and second members at each end of the composite member. Each insert has portions defining a central pinhole and is fused to the first and second members to form reinforced hinged sections. The hinged segments may be connected by pins to form a floating aquatic biomass containment barrier cell or a network of cells. Such a network is effective for the growth and harvesting of small aquatic plants such as the duckweed plant.