Patent ID: 8292044
Filing Date: 2012-10-23
Classification: F16D,Y10T

Abstract:
1. A pneumatic constricting drum brake comprising: (a) a rotor hub adapted for attachment to an input shaft; (b) a brake drum having an annular outer braking surface and an inwardly extending web removably attached to the hub from one side; (c) a plurality of radially movable brake elements disposed circumferentially about the braking surface; (d) a housing including a side plate removable from the one side disposed over the brake elements; (e) a first annular seal operatively disposed for sealing between the housing and the rotor hub, the seal being removable from said one side; (f) an inflatable disposed between the housing and the brake elements and operable upon inflation to move the brake elements inwardly into contact with the braking surface; (g) an annular spacer attached to the drum web; (h) a second annular seal disposed for sealing between the side plate and the spacer, wherein the side plate and drum are removable from the one side for permitting replacement of said first and second annular seal.