Attachment element

Details Attachment element Attachment element

2005-10-18

2005-10-18

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

Reexamination Certificate

active

06955504

ABSTRACT:
An attachment element (1;51), includes a boring head (5), a hollow cylindrical receiving body (2; 53) having, at its end (4) facing in a setting direction (S) of the attachment element (1; 51), a recess for receiving the boring head (5) and at its opposite end (6), an engagement element (7), the attachment element further having at least one outlet opening (10.1; 10.2) through which a mortar mass located in the receiving body (2; 53) is squeezed out under a pressure applied by a piston (27), a channel section (29) extending between the mortar mass and the at least one outlet opening (10.1; 10.2), and an inner tube (21; 52) arranged in the receiving body (2; 53) at a predetermined distance from an inner wall of the receiving body (2; 53) for forming at least one suction channel (22; 42.1; 42.2) and in which the mortar mass and the channel section (29) are arranged.

REFERENCES:
patent: 4055051 (1977-10-01), Finney
patent: 4322183 (1982-03-01), Ciavatta
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: 10017763 (2001-11-01), None

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