US 12,385,539 B2
Nut trapping two-piece piston
Philip Nathanael Jedele, Ypsilanti, MI (US)
Assigned to AKEBONO BRAKE INDUSTRY CO., LTD., Tokyo (JP)
Filed by Akebono Brake Industry Co., Ltd., Tokyo (JP)
Filed on Oct. 3, 2022, as Appl. No. 17/959,059.
Prior Publication US 2024/0110605 A1, Apr. 4, 2024
Int. Cl. F16D 65/18 (2006.01); F16D 121/02 (2012.01); F16D 125/06 (2012.01); F16D 125/40 (2012.01)
CPC F16D 65/18 (2013.01) [F16D 2121/02 (2013.01); F16D 2125/06 (2013.01); F16D 2125/40 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A brake system comprising:
(a) a caliper housing connected to or formed with a piston housing;
(b) a piston having a piston face seated in a piston main, wherein the piston is at least partially secured within the piston housing; and
(c) a spindle and nut assembly adapted to move the piston face relative to the piston main to engage a brake pad of the brake system;
wherein during a brake apply operation, the piston main is moved by hydraulic fluid located within the piston housing between the piston housing and the piston main, whereby the piston main moves the piston face so that the piston face engages the brake pad.