Maneuvering impact boring head

Patent · Tue Aug 18 00:00:00 EDT 1998

OSTI ID:672665

Zollinger, W T; Reutzel, E W

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: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• 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
• Resource Relation: Other Information: PBD: 18 Aug 1998
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
HYDRAULIC EQUIPMENT
IMPACT SHOCK
COMPRESSED GASES
HYDRAULIC FLUIDS
DESIGN
OPERATION