Invalidity dossier
US 5820062
Winding machine
Current assignee: Menegatto SRL
Added 9/23/2026, 10:48:53 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 5,820,062 A
Title: Winding machine
Inventor: Carlo Menegatto
Assignee: Menegatto S.R.L. (original and current)
Application No.: US 08/859,700
Filing date: 1997-05-21
Priority date: 1996-05-24
Publication/grant date: 1998-10-13
Status (as listed): Expired – Lifetime (anticipated expiration 2017-05-21)
Purpose
The patent seeks to improve winding machines of the type described in European Patent EP-B1-0-424573, aiming at: (1) extremely fast yarn winding onto bobbins; (2) more accurate winding precision; and (3) short assembly time with low machine weight for easy transport. The stated technical basis is that a reciprocating drive rod, moving along its own longitudinal axis, is subjected practically only to alternate compression, allowing a small cross-section, low weight, reduced inertia, and thus higher working speeds plus accurate, prompt braking at direction changes.
Plain-language scope
A winding machine has a support framework carrying a longitudinally extending spindle-holder frame with at least a plurality of rotating, longitudinally aligned spindles. Each spindle has a bobbin and a corresponding yarn guide on a mobile support. Guides for the mobile supports constrain them along a rectilinear path. The invention is characterized in that the reciprocating drive for the yarn-guide supports includes a drive rod having a longitudinal axis that moves reciprocatingly along that axis, and attachment means fix this mobile drive rod to a continuous linear flexible element (e.g., a cable or wire), driving that element and the connected yarn guides in a reciprocating distributing motion. In the described embodiment, each row of spindles has a drive rod actuated by a motor, with yarn-guide supports connected to the respective rod via the cable/wire.
Source: https://patents.google.com/patent/US5820062/en
What the excerpt does not establish
The supplied text is explicitly an excerpt; it omits portions of the description and the full claims. It therefore does not establish the complete claim set, claim dependencies, or the full scope of coverage. It also gives no figures' details, no examples beyond those described, and no data on actual measured speeds or precision. It does not address litigation, ownership transfers, validity, or prior art beyond the referenced EP-B1-0-424573.
Generated 10/1/2026, 9:33:06 PM
Cases on file (0)
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Litigation summary
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Proceedings on file (0)
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No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.
PTAB challenges
AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.
Assignment history
Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.
Prior art
Earlier patents, publications, and products that may anticipate or render the claims unpatentable.
Obviousness
Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.
Extensions
Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.
Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.