Accession Number:

ADA265586

Title:

Construction Diver Lift Systems

Descriptive Note:

Final rept. Oct 83-Sep 88,

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s):

Report Date:

1993-03-01

Pagination or Media Count:

40.0

Abstract:

A diver-operated lift system has been developed for underwater construction divers. The system consists of three different open-bottom lift bags with the following lift ranges 200 to 550 pounds, 500 to 1,250 pounds, and 1,000 to 3,000 pounds. The system maintains a constant buoyancy during ascent by venting the expanding air volume out under the slider of a zipper, which is attached to the side of the bag along the vertical direction. A diver-operated air wand is used to compensate for compression of the air volume during descent. The system is easy to maintain, and most repairs can be performed by the users in the field. This report documents the development, test, and evaluation of the engineering model systems. Lift system, Open-bottom lift bags, Dump valve, Air- filled valve, Air-filled wand

Subject Categories:

  • Construction Equipment, Materials and Supplies
  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE