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:
Oct. 11, 1983
Filed:
Apr. 02, 1981
Harry S Williams, West Jefferson, OH (US);
Jan B Yates, Reynoldsburg, OH (US);
John J Reidy, Orient, OH (US);
Ernest Faccini, Marbury, MD (US);
Terry E Hill, Thornville, OH (US);
William K Shafley, Columbus, OH (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An underwater excavator comprising a modular non-metallic cofferdam wherein ater under pressure exits from a plurality of nozzles along at least one side of the base of the cofferdam and a fluid driven eductor driven by pressurized fluid evacuates the suspended solids raised by the pressurized fluid that flows through the nozzles, with a plurality of small barrier nozzles located along one or more horizontal conduits used to sink the cofferdam.