US 12,492,782 B2
Cup and seal system for trailer brakes
Robert D Page, Portsmouth, VA (US)
Filed by Robert D Page, Portsmouth, VA (US)
Filed on Mar. 6, 2023, as Appl. No. 18/117,865.
Claims priority of provisional application 63/268,929, filed on Mar. 7, 2022.
Prior Publication US 2023/0279992 A1, Sep. 7, 2023
Int. Cl. B60T 1/06 (2006.01); F16J 15/3212 (2016.01); F16N 31/02 (2006.01)
CPC F16N 31/02 (2013.01) [B60T 1/067 (2013.01); F16J 15/3212 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A cup and seal system for a trailer brake assembly, the trailer brake assembly comprises a backing plate and a drum, the trailer brake assembly configured to mount over a plate of an axle and a spindle shaft, the cup and seal system comprises:
a cup member comprising:
a base plate, the base plate has stud holes, wherein position and number of the stud holes correspond to holes in the backing plate which correspond to studs in the plate of the axle, the base plate is hollow, and
a conical frustum extends from an inner periphery of the base plate and upwards from a front face of the base plate; and
a seal member comprising:
a flange of a round, flat, and hollow profile,
a skirt extends downwards from an outer periphery of the flange,
a first grommet extends upwards from an inner periphery of the flange, and
a second grommet extends downwards from the inner periphery of the flange,
wherein the cup member is configured to be mounted to the backing plate, the seal member is configured to be mounted to the drum, wherein the first grommet is configured to be received within the conical frustum of the cup member when the drum is installed,
wherein the seal member is configured to be rotated with the drum, wherein the first grommet is configured to rotate within the conical frustum without any contact with the cup member.