The present invention features a metamaterial including a plurality of unit cells, in which each unit cell includes two interacting members to dissipate energy. Also provided herein are assemblies including such metamaterials and methods of manufacture.

An orifice plate includes a wear-resistant inner diameter surface, an outer diameter surface, a first side surface extending between the wear-resistant inner diameter surface and the outer diameter surface, and a second side surface extending between the wear-resistant inner diameter surface and the outer diameter surface, the second side surface disposed opposite the orifice plate from the first side surface. The orifice plate may comprise a body portion comprising a first material. The wear-resistant inner diameter surface may comprise a second, wear-resistant material.

The present application provides a cushion having a core layer and a quilt support/comfort layer. The core layer may comprise innersprings, foams, air cells, or combinations thereof. The support/comfort layer comprises a sleep layer that simulates a conventional quilted fabric layer. The sleep layer includes a thick, comfort fabric and a backing fabric, which backing fabric may be the same as the thick, comfort fabric. The sleep layer is formed by coupling the thick, comfort fabric to the backing fabric to form a plurality of individual pockets in which micro spring coils are placed. The micro spring coils have less uncompressed height than conventional innerspring coils. The sleep layer coupling is formed by spot coupling without using a metal needle to stitch the layers together. In other words, the spot coupling may comprise an adhesive or weld.

The present application provides a cushion having a core layer and a quilt support/comfort layer. The core layer may comprise innersprings, foams, air cells, or combinations thereof. The support/comfort layer comprises a sleep layer that simulates a conventional quilted fabric layer. The sleep layer includes a thick, comfort fabric and a backing fabric, which backing fabric may be the same as the thick, comfort fabric. The sleep layer is formed by coupling the thick, comfort fabric to the backing fabric to form a plurality of individual pockets in which micro spring coils are placed. The micro spring coils have less uncompressed height than conventional innerspring coils. The sleep layer coupling is formed by spot coupling without using a metal needle to stitch the layers together. In other words, the spot coupling may comprise an adhesive or weld.

A wheel balance weight composition includes an elastomer in an amount of 100 parts by weight, metal oxide in an amount equal to or greater than 1 part by weight and equal to or smaller than 10.5 parts by weight, fatty acid in an amount equal to or greater than 0.5 parts by weight and equal to or smaller than 5.5 parts by weight, and stainless steel (SUS) powder in an amount equal to or greater than 380 parts by weight and equal to or smaller than 1,480 parts by weight.

An isolator includes a first section, a second section, and a third section is disclosed. The first section is configured to secure the isolator in a mount that is defined through a mounting section. The second section is disposed over the first section and is configured to be supported by a first surface of the mounting section. The third section is disposed on top of the second section such that the second section is sandwiched between the first section and the third section. The second section dampens forces exerted on the third section or the first section from being transmitted therebetween. A method for manufacturing a pallet that is configured to be frozen is also disclosed. The method includes friction stir welding along a first joining edge and second joining edge that are abutted together to joined together to form a first segment.

Viscoelastic damper assembly applicable both in air and submerged applications and with improved efficiency over prior art solutions for adding damping to an object or structure.