Friction tube anchor and inflation adapter for the latter

Details Friction tube anchor and inflation adapter for the latter Friction tube anchor and inflation adapter for the latter

2011-02-22

2011-02-22

Bagnell, David J (Department: 3672)

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

C405S259100, C405S288000, C411S019000, C052S711000

Reexamination Certificate

active

07891911

ABSTRACT:
A friction tube anchor has a tube (1) which can be expanded under the action of a pressurized medium and which is attached to a casing (6). The casing (6) is screwed into a section (13) of a casing-like sleeve (7) which is provided with a thread and is sealed by ring packing (11) relative to the inside of the section (13). The casing-like sleeve (7) has another section (14) which is provided with a thread and in which selectively either another expandable tube (1), or an adapter for feeding the pressurized medium for expanding the tube (1), or a fastening bolt, for example an eye bolt, can be screwed.

REFERENCES:
patent: 4100748 (1978-07-01), Hansen
patent: 2004/099571 (2004-11-01), None
patent: WO 2005/073510 (2005-08-01), None
patent: WO 2005/119009 (2005-12-01), None
patent: WO 2006/066288 (2006-06-01), None
Search Report in corresponding Austrian Application GM 8067/2007 dated Jul. 2, 2007.

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