US Patent Issued to MIRANDA & IRMAO LDA. on Nov. 25 for "Drive system comprising a drive shaft and a chainring" (Portuguese Inventor)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,534, issued on Nov. 25, was assigned to MIRANDA & IRMAO LDA. (Agueda, Portugal).

"Drive system comprising a drive shaft and a chainring" was invented by Joao Filipe Tavares Miranda (Agueda, Portugal).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive system comprising a drive shaft (21) and a chainring (1), wherein the drive shaft (21) has a splined interface (22) for attaching the chainring (1) in a rotationally fixed manner. The drive system has an annular adapter (2) having a radially inner surface with an interface (20) engaging the splined interface (22) of the drive shaft (21) and a radially outer region with at least one first connecting e...