公开(公告)号：US09645064B1

公开(公告)日：2017-05-09

申请号：US14642713

申请日：2015-03-09

Applicant: Amazon Technologies, Inc.

Inventor： Mohammed Aftab Alam ,  Ramez Nachman ,  Shankar Ganapathysubramanian ,  Guruprasad Ramanathan

IPC: G01M7/00 ,  G01N3/30

CPC classification number: G01N3/30 ,  G01N3/303

Abstract: An example method includes positioning a mass at a height opposite a modulator characterized by a particular strain rate and support by a carrier moveably disposed opposite the mass. The method also includes releasing the mass such that the mass impacts the modulator, and an additional component connected to the carrier causes failure of a sample of material. The method further includes determining a displacement of the carrier corresponding to failure of the sample, determining a force applied to the modulator by the mass and resulting in failure of the sample, and determining at least one of a dynamic strength of the sample and a dynamic modulus of the sample. In such a method, the dynamic strength is based on the force applied to the modulator and the strain rate. Additionally, the dynamic modulus is based on the displacement of the carrier and the strain rate.

公开(公告)号：US09857664B1

公开(公告)日：2018-01-02

申请号：US15266661

申请日：2016-09-15

Applicant: Amazon Technologies, Inc.

Inventor： David Tang ,  John Larkin ,  Isabella Talley Lewis ,  Cameron Bo Logsdon ,  Michael Paul Nelson ,  Gregory James Nyssen ,  Guruprasad Ramanathan ,  Srivatsan Subbarayan ,  Robi Thomas ,  William Franklin Troutman, Jr. ,  Bradley David Urban

IPC: G03B15/02 ,  G03B15/06 ,  F21V29/70 ,  F21V29/508 ,  F21V23/04 ,  F21Y115/10

CPC classification number: G03B15/06 ,  F21V23/0414 ,  F21V29/508 ,  F21V29/70 ,  F21Y2115/10

Abstract: An example enclosure includes a base, a plurality of walls extending from the base, and a top disposed opposite the base and connected to at least one of the plurality of walls. The enclosure also includes a light assembly configured to illuminate an interior space of the enclosure. The light assembly includes a diffuser, a heat sink connected to the diffuser, a substrate connected to the heat sink, and a light source connected to the substrate. The diffuser may be connected to one of the top or the base such that the heat sink is spaced from the one of the top or the base. Additionally, the top is moveable toward the base to transition the enclosure from an expanded state to a collapsed state.