| PERFORMANCE FRICTION CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20110094834 | BRAKE CALIPER WITH BRAKE PAD TIMING AND RETRACTION CONTROLLER - A brake caliper is provided with a timing and retraction controller that that adjusts brake timing, eliminates parasitic brake losses and dampens out-of-plane vibration between the brake pad and rotor. The brake caliper includes a housing disposed over a brake rotor; first and second opposing brake pads extendably and retractably mounted on opposite sides of the caliper housing, brake pistons that extend and retract the brake pads into and out of frictional engagement with the rotor, and brake pad timing and retraction controllers disposed on opposite sides of the caliper housing. Each controller includes a Belleville spring or other resilient member with a short compression travel limited to between about 1.50 mm and 0.025 mm. The short stroke Belleville spring of each controller applies a hold-off force against the extension force of the brake pistons that slightly delays brake pad extension and slightly reduces brake pad clamping force against the rotor, thereby advantageously providing a front wheel braking bias when applied to the rear wheels of a vehicle. The restorative force applied by the short stroke Belleville forcefully and uniformly retracts the brake pad from the rotor, eliminating parasitic brake losses, and dampening out-of-plane vibration between the brake pad and rotor. | 04-28-2011 |
| 20100012443 | CALIPER MOUNTING ARRANGEMENT - A brake caliper assembly includes a caliper body connected to a torque plate via a mating protrusion and cavity that transfer torque through facing abutment surfaces to reduce twisting of the caliper. The mating protrusion and cavity provide a stiff connection and also allow use of a smaller, lighter connecting bolt. This arrangement eases removal and reinstallation of the caliper. | 01-21-2010 |
| 20090218183 | BRAKE ROTOR AND ABS TONE RING ATTACHMENT ASSEMBLY THAT PROMOTES IN PLANE UNIFORM TORQUE TRANSFER DISTRIBUTION - A brake assembly for use on vehicles includes a rotor having connection tabs and a hub having bobbins, integrally formed or separate, with the rotor connection tabs being positioned between the hub bobbins and clamped together with a top plate. An ABS tone ring is fastened to the hub and is circumscribed by the rotor. Alternatively, an ABS tone ring can be formed as part of the top plate. A spring clip can be used with the top plate to accommodate thermal expansion of the rotor and eliminate rotor rattling. Torque is transferred from the brake rotor to the hub in a common plane to prevent twisting in the fastener connection. | 09-03-2009 |
