Back to results
US 4,061,019 AGranted
Apparatus for generating forces in a specimen
OwnerDavid H. Blasettiinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerDavid H. Blasettiinventor
Estimating the term…
Apparatus for creating vibratory forces in a specimen in which the specimen is positioned within a carrier which is rotated about a remote axis, preferably vertical, to generate centrifugal forces directed radially outward from the remote axis. The carrier is also rotated about an axis perpendicular to the direction of the radial centrifugal force so that the force on any particle is cyclically reversed at a frequency determined by the frequency of the rotation about the perpendicular axis. The rate of rotation about the remote axis may be varied to vary the amplitude of the centrifugal force and the rate of rotation about the perpendicular axis may be varied to vary the frequency of the vibratory force generated by this combination. The specification discloses an apparatus in which a solid specimen may be mounted for the generation of cyclically-varying vibration forces and also an apparatus for receiving a liquid which may be subjected to cyclically-varying vibrational forces.
Apparatus for generating cyclically-varying forces in a solid specimen comprising a carrier for the specimen, mounting means in said carrier to fix said specimen in said carrier, means to rotate the carrier about a remote first axis at a given angular speed, whereby a centrifugal force radial to said first axis is generated by each particle in the specimen, means for effecting rotation of said specimen about a second axis perpendicular to the direction of the radial centrifugal force to thereby cyclically reverse the orientation of the centrifugal force generated by each particle in the specimen.
A method of testing a solid-body specimen by subjecting the specimen to a vibratory force comprising the steps of rotating said specimen about a remote first axis at a given speed, whereby a centrifugal force radial to said first axis is generated by each particle in th specimen, and simultaneously effecting rotation of said specimen about a second axis perpendicular to the direction of the radial centrifugal force to thereby cyclically reverse the orientation of the centrifugal force generated by each particle in the specimen.
Dependencies are inferred from the claim text.