Patents by Inventor Alexandra G. Hammerberg

Alexandra G. Hammerberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Gradated composite material for impact protection
    Patent number: 11357422
    Abstract: A gradated composite material for impact protection is provided. The material includes an inner cushioning layer and an outer shell layer. The material includes a plurality of foam layers, each foam layer having a foam thickness, wherein at least some of the foam layers have differing foam thicknesses. The material includes a plurality of mesh layers, each mesh layer having a mesh porosity, wherein at least some of the mesh layers have differing mesh porosities. The foam layers and the mesh layers are positioned in an alternating arrangement between the inner cushioning layer and the outer shell layer such that each foam layer is adjacent to at least one mesh layer, and each mesh layer is adjacent to at least one foam layer.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: June 14, 2022
    Inventor: Alexandra G. Hammerberg
  • GRADATED COMPOSITE MATERIAL FOR IMPACT PROTECTION
    Publication number: 20190328280
    Abstract: A gradated composite material for impact protection is provided. The material includes an inner cushioning layer and an outer shell layer. The material includes a plurality of foam layers, each foam layer having a foam thickness, wherein at least some of the foam layers have differing foam thicknesses. The material includes a plurality of mesh layers, each mesh layer having a mesh porosity, wherein at least some of the mesh layers have differing mesh porosities. The foam layers and the mesh layers are positioned in an alternating arrangement between the inner cushioning layer and the outer shell layer such that each foam layer is adjacent to at least one mesh layer, and each mesh layer is adjacent to at least one foam layer.
    Type: Application
    Filed: May 21, 2019
    Publication date: October 31, 2019
    Inventor: Alexandra G. Hammerberg