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Title: Maneuvering impact boring head

Abstract

An impact boring head may comprise a main body having an internal cavity with a front end and a rear end. A striker having a head end and a tail end is slidably mounted in the internal cavity of the main body so that the striker can be reciprocated between a forward position and an aft position in response to hydraulic pressure. A compressible gas contained in the internal cavity between the head end of the striker and the front end of the internal cavity returns the striker to the aft position upon removal of the hydraulic pressure.

Inventors:
 [1];  [1]
  1. Idaho Falls, ID
Issue Date:
Research Org.:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
OSTI Identifier:
871781
Patent Number(s):
5794718
Assignee:
Lockheed Idaho Technologies Company (Idaho Falls, ID)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
maneuvering; impact; boring; head; comprise; main; internal; cavity; front; rear; striker; tail; slidably; mounted; reciprocated; forward; position; response; hydraulic; pressure; compressible; gas; contained; returns; removal; slidably mounted; hydraulic pressure; internal cavity; boring head; compressible gas; impact boring; /175/173/

Citation Formats

Zollinger, W Thor, and Reutzel, Edward W. Maneuvering impact boring head. United States: N. p., 1998. Web.
Zollinger, W Thor, & Reutzel, Edward W. Maneuvering impact boring head. United States.
Zollinger, W Thor, and Reutzel, Edward W. Thu . "Maneuvering impact boring head". United States. https://www.osti.gov/servlets/purl/871781.
@article{osti_871781,
title = {Maneuvering impact boring head},
author = {Zollinger, W Thor and Reutzel, Edward W},
abstractNote = {An impact boring head may comprise a main body having an internal cavity with a front end and a rear end. A striker having a head end and a tail end is slidably mounted in the internal cavity of the main body so that the striker can be reciprocated between a forward position and an aft position in response to hydraulic pressure. A compressible gas contained in the internal cavity between the head end of the striker and the front end of the internal cavity returns the striker to the aft position upon removal of the hydraulic pressure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}