EP1471286A1 — Ball screw
Assigned to Umbra Cuscinetti SpA · Expires 2004-10-27 · 22y expired
What this patent protects
A ball screw has a given longitudinal axis (3), and is defined by a shaft (2) and a nut (6) coaxial with each other and having respective at least single-start threads (5, 8); the nut (6) having, for each start, at least two endless tracks (9, 10), each of which has a respective …
USPTO Abstract
A ball screw has a given longitudinal axis (3), and is defined by a shaft (2) and a nut (6) coaxial with each other and having respective at least single-start threads (5, 8); the nut (6) having, for each start, at least two endless tracks (9, 10), each of which has a respective portion (17) formed through the nut (6) and parallel to the longitudinal axis (3), and is engaged by a respective train (12, 13) of balls (14, 15).
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
Track this patent
Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.