Pressing-out apparatus

Details Pressing-out apparatus Pressing-out apparatus

2007-10-23

2007-10-23

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

C405S269000

Reexamination Certificate

active

10898880

ABSTRACT:
A pressing-out apparatus (4) for pressing out a mass from a self-drilling, chemical composite anchor (2) for mining and tunnel construction has a pressing device arranged in a housing (21). The composite anchor (2) includes an anchor tube (5) having one end (6) with a drilling head (7) and one free end (8) and can be drilled into the receiving material by means of a motor (3). The pressing-out apparatus (4) is operatively coupled with the motor (3) and with the free end (8) of the anchor tube (5).

REFERENCES:
patent: 4055051 (1977-10-01), Finney
patent: 6457910 (2002-10-01), Ludwig et al.
patent: 6468010 (2002-10-01), Sager et al.
patent: 6491478 (2002-12-01), Sager et al.
patent: 3838186 (1989-05-01), None
patent: 0017763 (2001-10-01), None
patent: 0058385 (2002-06-01), None

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