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Maneuvering impact boring head

Patent ·
OSTI ID:871781
 [1];  [1]
  1. Idaho Falls, ID
+ Show Author Affiliations
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.
Research Organization:
Idaho National Engineering and Environmental Laboratory, Idaho Falls, ID
DOE Contract Number:
AC07-94ID13223
Assignee:
Lockheed Idaho Technologies Company (Idaho Falls, ID)
Patent Number(s):
US 5794718
OSTI ID:
871781
Country of Publication:
United States
Language:
English

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Related Subjects

/175/173/
boring
boring head
cavity
compressible
compressible gas
comprise
contained
forward
front
gas
head
hydraulic
hydraulic pressure
impact
impact boring
internal
internal cavity
main
maneuvering
mounted
position
pressure
rear
reciprocated
removal
response
returns
slidably
slidably mounted
striker
tail