Method and apparatus for determining stress underground

Measuring and testing – Ductility or brittleness

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01B 530

Patent

active

040916618

ABSTRACT:
Apparatus and process of determining stress underground, the apparatus having a central standard or shaft provided with a sensing head formed of equally circumferentially spaced, radially extending blades or vanes carried at the lower end portion of the shaft. Sensor elements or cells are carried within each blade, each sensor element having a pair of spaced, deformable, deflection diaphragms separated by a porous interior. The sensor head is inserted directly into the ground or lowered through a hollow auger to project into the ground, therefrom. In other embodiments, the sensor head is carried by a flexible actuator riding in a curved track of a housing. The head, which may be a single blade or a plurality of blades with embedded sensor cells, is recessed in the housing and is projected sidewise from the housing by manipulation of the actuator.
The process includes embedding these blades or vanes in the ground in prescribed directions, and thus by using fluid pressure, deflect the diaphragms so as to detect the pressure drop due to deflection on remote instruments located at the surface of the ground.

REFERENCES:
patent: 2258001 (1941-10-01), Chamberlain
patent: 3286514 (1966-11-01), Anderson
patent: 3372577 (1968-03-01), Bates et al.
patent: 3427876 (1969-02-01), Steele et al.
patent: 3442123 (1969-05-01), Broise
patent: 3503254 (1970-03-01), Menard

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for determining stress underground does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for determining stress underground, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining stress underground will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-463932

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.