US 12,151,780 B2
Seal structures
Douglas Alexander Chalmers, North Vancouver (CA); Paul Klawer, North Vancouver (CA); Bjorn Borgers, Vancouver (CA); Evan Michael Choltco-Devlin, New Westminster (CA); Bart Scicchitano, Squamish (CA); Fraser Andrew, North Vancouver (CA); and Aljonn Lacerna, North Vancouver (CA)
Assigned to Fox Factory, Inc., Duluth, GA (US)
Filed by Fox Factory, Inc., Duluth, GA (US)
Filed on Jun. 28, 2022, as Appl. No. 17/851,055.
Claims priority of provisional application 63/218,875, filed on Jul. 6, 2021.
Claims priority of provisional application 63/215,771, filed on Jun. 28, 2021.
Prior Publication US 2022/0411011 A1, Dec. 29, 2022
Int. Cl. B62M 3/00 (2006.01); F16C 33/80 (2006.01)
CPC B62M 3/003 (2013.01) [F16C 33/805 (2013.01); F16C 2326/28 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A threaded bottom bracket comprising:
an internal sleeve;
a ball bearing, wherein an inner race of the ball bearing is an extended inner race;
a cup fit to concentrically hold the ball bearing, wherein the cup is coupled to the internal sleeve;
a labyrinth, the labyrinth coupled to the ball bearing and fit to prevent water and debris from entering the ball bearing, wherein the labyrinth and the cup form a path;
a plurality of debris channels disposed within said path; and
a rotary seal disposed between the ball bearing and the labyrinth, the rotary seal having an external seal that seals against the extended inner race, wherein, as said labyrinth rotates, water and debris in said path are forced towards said cup and pushed out of said path due to a slope of a chamfer proximate an opening of said cup.