skip navigation


Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

NCJRS Abstract

The document referenced below is part of the NCJRS Virtual Library collection. To conduct further searches of the collection, visit the Virtual Library. See the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.


NCJ Number: 236960 Add to Shopping cart Find in a Library
Title: Dervish-Universal Power Tool System for EOD Robots, Phase II
Author(s): Paul Chambers
Corporate Author: Technical Products, Inc.
United States of America
Date Published: November 2011
Page Count: 73
Sponsoring Agency: National Institute of Justice (NIJ)
Washington, DC 20531
National Institute of Justice/NCJRS
Rockville, MD 20849
NCJRS Photocopy Services
Rockville, MD 20849-6000
Technical Products, Inc.
Sterling, MA 01564
Grant Number: 2009-SQ-B9-K017
Sale Source: National Institute of Justice/NCJRS
Box 6000
Rockville, MD 20849
United States of America

NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America
Document: PDF
Type: Program/Project Description
Format: Document; Document (Online)
Language: English
Country: United States of America
Annotation: Because improvised explosive devices (IEDs) are often anchored down or secured to frustrate simple access by explosive ordnance disposal (EOD) staff, EOD staff need to have the ability to cut through or into structures that secure IEDs, so as to support inspection, manipulation, and movement of an IED; the purpose of the current project was to develop universal tools that will interface with any of the existing common robots used in EOD work.
Abstract: This was Phase II of an earlier effort to develop the “Double Dervish,” a universal cutting tool that could easily be adapted to existing robots used in EOD work. This tool was originally envisioned as having two cutting blades, hence the name of “Double Dervish.” During the Phase I development, this configuration was refined into a single blade design that became known as the “Dervish.” Phase II of the project focused on the fielding of a universal cutting tool that would interface with any of the existing common EOD robots. The baseline cutter head is designed to cut through cloth, ballistic nylons, mixed textiles with zippers, buckles, zippers or chains, key shanks, and cables, all with a single tool. A shoe-guide prevents damage to the surface, which is particularly important in hostage or suicide cases. The blade is designed with a closed-loop feedback that monitors the current and voltage draw in order to prevent binding and also minimize power draw during idle. The Dervish as now configured offers the user great capability in manipulating down-range structures and items in an efficient, flexible manner. The device will not jam and can be tailored to multiple platforms and missions. 66 figures
Main Term(s): Technology transfer
Index Term(s): Bomb disposal equipment; Bomb disposal procedures; Bomb disposal units; Bombs; NIJ final report
To cite this abstract, use the following link:

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.