×

Pressure-adjustable shoe bladder assembly

  • US 5,253,435 A
  • Filed: 08/19/1991
  • Issued: 10/19/1993
  • Est. Priority Date: 03/17/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A shoe bladder assembly, comprising:

  • pressure-adjustable first and second bladder chambers positionable in a shoe;

    pressure adjusting means for adjusting the pressure in said first and second bladder chambers to adjust the fit of a foot in the shoe with said chambers in position therein;

    a passageway assembly including a plurality of passageways in fluid communication with said first and second bladder chambers; and

    selector means for selecting whether said pressure adjusting means is in operative fluid communication, via said passageways, with alternative said first and second bladder chambers,wherein said selector means comprises a rotational member having a central bore and side openings into said central bore, said side openings providing fluid communication between said central bore and said passageways, and a resiliently-biased release valve in said rotational member and providing fluid communication with said central bore.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×