Borehole tilt meter

Details Borehole tilt meter Borehole tilt meter

1999-09-24

2001-01-23

Noori, Max (Department: 2855)

Measuring and testing

Borehole or drilling

C033S310000

Reexamination Certificate

active

06176128

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a borehole tilt meter which is used in the ground and in a solid construction. Because the borehole tilt meter must come into closer contact using cement in the borehole, and a cylindrical closed receptacle has generally been used for the tilt meter, then it has been impossible to achieve a multiple instruction of tilt meters in the same borehole.
SUMMARY OF THE INVENTION
The present invention concerns a tilt meter for the borehole. The devised tilt meter utilizes a spring and a pendulum which are placed in a receptacle. The tilt meter is characterized by having a hollow part near the middle of the receptacle where wire lines for other tilt meter and/or other strain meter can be inserted.


REFERENCES:
patent: 2116120 (1938-04-01), Malmgren
patent: 2152671 (1939-04-01), Smith
patent: 2733519 (1956-02-01), Murata
patent: 4747317 (1988-05-01), Lara
patent: 4788498 (1988-11-01), Uemura
patent: 5201128 (1993-04-01), Olivier et al.

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