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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. 8 figs.

Inventors:
;
Issue Date:
Research Org.:
Lockheed Martin Idaho Tech Co
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672665
Patent Number(s):
5,794,718
Application Number:
PAN: 8-613,301
Assignee:
Lockheed Idaho Technologies Co., Idaho Falls, ID (United States) PTO; SCA: 420200; PA: EDB-98:120602; SN: 98002026888
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 18 Aug 1998
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; HYDRAULIC EQUIPMENT; IMPACT SHOCK; COMPRESSED GASES; HYDRAULIC FLUIDS; DESIGN; OPERATION

Citation Formats

Zollinger, W.T., and Reutzel, E.W. Maneuvering impact boring head. United States: N. p., 1998. Web.
Zollinger, W.T., & Reutzel, E.W. Maneuvering impact boring head. United States.
Zollinger, W.T., and Reutzel, E.W. Tue . "Maneuvering impact boring head". United States.
@article{osti_672665,
title = {Maneuvering impact boring head},
author = {Zollinger, W.T. and Reutzel, E.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. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {8}
}