US 11,849,803 B2
Article of footwear with an adaptive fluid system
Elizabeth Langvin, Sherwood, OR (US); James Molyneux, Portland, OR (US); Lee D. Peyton, Tigard, OR (US); Ty A. Ransom, Portland, OR (US); and Nicola J. Reynolds, Hillsboro, OR (US)
Assigned to NIKE, Inc., Beaverton, OR (US)
Filed by NIKE, Inc., Beaverton, OR (US)
Filed on Sep. 1, 2022, as Appl. No. 17/901,663.
Application 14/480,892 is a division of application No. 13/081,058, filed on Apr. 6, 2011, granted, now 8,857,076, issued on Oct. 14, 2014.
Application 17/901,663 is a continuation of application No. 17/090,380, filed on Nov. 5, 2020, granted, now 11,457,695.
Application 17/090,380 is a continuation of application No. 16/296,387, filed on Mar. 8, 2019, granted, now 10,842,226, issued on Nov. 24, 2020.
Application 16/296,387 is a continuation of application No. 15/399,194, filed on Jan. 5, 2017, granted, now 10,258,105, issued on Apr. 16, 2019.
Application 15/399,194 is a continuation of application No. 14/480,892, filed on Sep. 9, 2014, granted, now 9,560,894, issued on Feb. 7, 2017.
Prior Publication US 2023/0021566 A1, Jan. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A43B 13/20 (2006.01); A43B 21/28 (2006.01); A43B 23/02 (2006.01); A43B 13/18 (2006.01)
CPC A43B 13/203 (2013.01) [A43B 13/186 (2013.01); A43B 13/189 (2013.01); A43B 13/20 (2013.01); A43B 13/206 (2013.01); A43B 21/28 (2013.01); A43B 23/029 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An article of footwear comprising:
an upper;
a sole structure engaged with the upper; and
an adaptive fluid system, comprising:
a fluid chamber disposed in the sole structure;
a pump configured to deliver fluid to the fluid chamber, wherein the pump is an internal pump disposed in an insole of the article of footwear;
an adjustable pressure regulating valve disposed in the article of footwear and including a fluid inlet disposed downstream of the pump and a fluid outlet disposed upstream of the fluid chamber;
a first one way valve disposed between the fluid outlet of the pressure regulating valve and a fluid inlet of the fluid chamber;
a second one way valve disposed between the internal pump and the fluid inlet of the adjustable pressure regulating valve; and
wherein the first one way valve allows fluid to flow from the adjustable pressure regulating valve to the fluid chamber and wherein the first one way valve prevents fluid flow from the fluid chamber to the adjustable pressure regulating valve, and
wherein the second one way valve allows fluid flow from the internal pump to the adjustable pressure regulating valve and wherein the second one way valve prevents fluid from flowing from the adjustable pressure regulating valve to the internal pump.