US 11,707,946 B2
Flutter resistant caster
James Mulhern, Nanticoke, PA (US)
Assigned to Pride Mobility Products Corporation, Duryea, PA (US)
Filed by Pride Mobility Products Corporation, Exeter, PA (US)
Filed on Dec. 3, 2020, as Appl. No. 17/110,582.
Prior Publication US 2022/0176742 A1, Jun. 9, 2022
Int. Cl. B60B 33/02 (2006.01); F16C 19/38 (2006.01); A61G 5/04 (2013.01)
CPC B60B 33/023 (2013.01) [A61G 5/04 (2013.01); F16C 19/383 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A vehicle comprising:
a frame;
a drive wheel coupled to the frame;
a caster housing coupled to the frame, the caster housing including an opening;
a caster including a caster wheel and a caster stem extending through the opening in the caster housing, the caster stem configured to rotate relative to the caster housing;
a locking element coupled to the caster stem;
a first bearing coupled to the caster stem; and
a biasing element spaced apart from the caster housing and coupled to the caster stem,
wherein the biasing element is configured to exert a force on the first bearing to increase friction in the first bearing.