Accession Number:

ADD013435

Title:

Underwater Excavator.

Descriptive Note:

Patent, Filed 2 Apr 81, patented 11 Oct 83,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1983-10-11

Pagination or Media Count:

8.0

Abstract:

An underwater excavator comprising a modular non-metallic cofferdam wherein water 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.

Subject Categories:

  • Construction Equipment, Materials and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE