Patents Assigned to Spira, Inc.
  • Spring cushioned shoe with encapsulated spring
    Patent number: 11497273
    Abstract: A sole assembly for an article of footwear comprises a midsole, a sole having a heel region, and a first wave spring disposed within a vacuity located within the heel region. The wave spring includes a top surface and a bottom surface. A plate, resting upon the top surface of the wave spring, is unsecured to the midsole and sized to permit movement within the vacuity along with the wave spring responsive to a rolling foot strike.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: November 15, 2022
    Assignee: Spira, Inc.
    Inventors: Kevin Adametz, Robert Azar
  • SPRING CUSHIONED SHOE WITH ENCAPSULATED SPRING
    Publication number: 20210037914
    Abstract: A sole assembly for an article of footwear comprises a midsole, a sole having a heel region, and a first wave spring disposed within a vacuity located within the heel region. The wave spring includes a top surface and a bottom surface. A plate, resting upon the top surface of the wave spring, is unsecured to the midsole and sized to permit movement within the vacuity along with the wave spring responsive to a rolling foot strike.
    Type: Application
    Filed: August 29, 2018
    Publication date: February 11, 2021
    Applicant: Spira, Inc.
    Inventors: Kevin Adametz, Robert Azar