A method of forming a vacuum insulated structure includes providing a structural envelope an insulating cavity defined within the structural envelope. An expanding device is attached to opposing outer walls of the structural envelope and the interior cavity is expanded by pulling the opposing outer walls away from one another to define an expanded state. An insulating material is disposed within the insulating cavity to occupy substantially all of the insulating cavity in the expanded state. Gas is expressed from the insulating cavity to collapse the structural envelope to a final state and a final interior volume that is less than the expanded interior volume. The final state of the structural envelope defines a densified state of the insulating material within the insulating cavity. The vacuum port is then closed to hermetically seal the insulating cavity.

A method of forming a vacuum insulated structure includes providing a structural envelope an insulating cavity defined within the structural envelope. An expanding device is attached to opposing outer walls of the structural envelope and the interior cavity is expanded by pulling the opposing outer walls away from one another to define an expanded state. An insulating material is disposed within the insulating cavity to occupy substantially all of the insulating cavity in the expanded state. Gas is expressed from the insulating cavity to collapse the structural envelope to a final state and a final interior volume that is less than the expanded interior volume. The final state of the structural envelope defines a densified state of the insulating material within the insulating cavity. The vacuum port is then closed to hermetically seal the insulating cavity.

A sole structure for an article of footwear having a first support element, the first support element including a first set of recesses; a second support element, the second support element including a second set of recesses, and wherein the second support element includes an opening extending therethrough; a coupling portion, the coupling portion including a third set of recesses, and wherein the coupling portion is disposed within the opening of the second support element; a cushioning element disposed between the first support element and the second support element, the cushioning element including a plurality of tubes, wherein the first set of recesses, the second set of recesses, and the third set of recesses form a continuous receiving area, and wherein the cushioning element is disposed within the continuous receiving area.

An article of footwear comprising an upper and a sole structure coupled to the upper. The sole structure includes a cushioning element, comprising a plurality of tubes, wherein adjacent tubes are connected to one another by a respective web area, disposed between a first support element and a second support element, wherein one or more of the respective web areas is exposed to the external environment.

An article of footwear having a heel region with a posterior end of the article of footwear, a mid-foot region, and a forefoot region with an anterior end of the article of footwear; a lateral side, and a medial side opposite the lateral side; an upper; a sole structure, the sole structure coupled to the upper, and wherein the sole structure has; a cushioning element disposed in the heel region, the cushioning element having a first tube and a second tube, wherein each of the first tube and the second tube extend from the lateral side of the article of footwear to the medial side of the article of footwear, wherein the first tube includes a contained fluid volume at a first pressure, and the second tube includes a contained fluid volume at a second pressure, wherein the first pressure and the second pressure are equal to one another.

An article of footwear having a heel region including a posterior end, a mid-foot region, and a forefoot region including an anterior end. The article of footwear having a lateral side, and a medial side opposite the lateral side; an upper; and a sole structure coupled to the upper. The sole structure has a first cushioning element, having a plurality of first tubes and a plurality of first web areas. Adjacent first tubes are connected to one another by a respective first web area of the plurality of first web areas. The sole structure also having a second cushioning element, having a plurality of second tubes and a plurality of second web areas. Adjacent second tubes are connected to one another by a respective web area of the second plurality of web areas.

An article of footwear having a heel region including a posterior end, a mid-foot region, and a forefoot region including an anterior end. The article of footwear having an upper extending from the heel region to the forefoot region and a sole structure coupled to the upper. The sole structure further has a first cushioning element having a first tube, a second tube, a third tube, and a fourth tube, and an outsole layer extending from the posterior end to the anterior end. The outsole layer is configured to directly receive a portion of the first cushioning element, and the outsole layer forms a ground-contacting surface of the article of footwear.

A method of forming a cushioning element. The method including placing a first sheet adjacent to an outer surface of a first mold portion, the first mold portion including a first mold cavity. The method including pressing a portion of the first sheet into the first mold portion and into the first mold cavity with a forming tool, wherein at least a portion of the forming tool is extended into the first mold cavity. The method including applying negative pressure to the first mold cavity to draw the portion of the first sheet into the first mold cavity, and joining a second sheet to the first sheet to form the cushioning element.

A method of forming a cushioning element. The method including placing a first sheet adjacent to an outer surface of a first mold portion, the first mold portion including a first mold cavity. The method including pressing a portion of the first sheet into the first mold portion and into the first mold cavity with a forming tool, wherein at least a portion of the forming tool is extended into the first mold cavity. The method including applying negative pressure to the first mold cavity to draw the portion of the first sheet into the first mold cavity, and joining a second sheet to the first sheet to form the cushioning element.

A deep-drawing arrangement is for deep-drawing a continuously supplied film strip. The deep-drawing arrangement includes a transporter which revolves continuously around a fixed machine frame and which has plate elements and mold cavities and a cyclically timed deep-drawing apparatus, wherein the mold cavities can be acted on with a pressure reduction. The plate elements are permanently connected to each other via connection lines. A plate element is in the form of a connection element having at least one pressure reduction connection. The pressure reduction connection is connected to a pressure reduction source. The plate elements are permanently acted on with the pressure reduction during operation via the connection lines and the pressure reduction connection. Each plate element has at least one switching valve for connecting the pressure reduction which is permanently applied in the plate element to the associated mold cavities as required.