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Maneuvering impact boring head

Patent ·
OSTI ID:672665

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.

Research Organization:
Lockheed Martin Idaho Tech Co
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC07-94ID13223
Assignee:
Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
Patent Number(s):
US 5,794,718/A/
Application Number:
PAN: 8-613,301
OSTI ID:
672665
Country of Publication:
United States
Language:
English

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