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US 4,531,400 AGranted
Method and apparatus for ice impact testing
AssigneeMobil Oil Corporation
InventorDonald E. Nevel
Life of this patent
Estimating the term…
Abstract
A method and apparatus for impact testing ice in a laboratory environment simulates in-situ conditions wherein an ice sample is confined triaxially and maintained at a controlled temperature to approximate a semi infinite mass. An impact device impinges on the ice sample so confined.
Claims9
A device for testing ice samples comprising:
- impact device for imparting a force to the ice sample;
- structure means for releasably holding and generally guiding said impact device;
- frame means positioned within said structure means below said impact device for receiving the ice sample including a ring for providing biaxial support to the ice sample and a backing sheet coupled to said ring to provide a third axial support, and base means for providing support for said backing sheet, said frame means simulating a semi infinite mass.
A method for testing ice samples comprising the steps of:
- securing an ice sample within a triaxial support to simulate a semi infinite mass;
- releasably supporting an impact device at a predetermined height above said ice sample;
- and
- dropping said impact device on said ice sample to impart a impact force on said ice sample.
1 more element
In an ice sample impact testing system, an ice sample holder comprising:
- biaxial means for providing support along two directional axes of the ice sample;
- uniaxial means secured to said biaxial means for providing a third directional axes support for the ice sample;
- and
- support means for receiving said uniaxial means and securing said uniaxial means to the surface of the earth.
1 more element
Dependencies are inferred from the claim text.