rollershark – Web Guides with Selectively Protruding Fins

rollershark

Web Guides with Selectively Protruding Fins

US Patent 12,595,147 B2

Watch the Video: https://youtu.be/Isy7pvSFmKc

Problem

Web path drift damages product, reduces accuracy, and increases scrap, rework, and downtime in web machines and conveyor systems.

Misalignment in printing and coating operations
Position fluctuations that cause conveyor wear and damage
Sheet or film weave that cause downtime and rework
Large, complex guides are costly and hard to fit into constrained machines

Solution — Selectively Protruding Fins

Fins housed inside a slotted roller move between retracted and extended positions
Actuator-controlled fins change the roller’s effective diameter on demand
Compact, simpler mechanism compared with conventional web guides

Key Benefits

Responsive correction:

Rapid diameter change lets the guide counteract tracking shifts quickly.

Compact design:

Smaller footprint eases integration into constrained web machines.

Cost-effective:

Simpler actuator/fin assembly reduces complexity and improves reliability.

Patent Details

US 12,595,147 B2 — WEB GUIDES WITH SELECTIVELY PROTRUDING FINS

Status: Granted (US patent B2)

Scope (summary): Roller with slotted tube wall, internal control surface assembly with fins aligned to slots, and a fin actuator to selectively move fins between retracted and extended positions. A web guide system including sensors and a control unit to dynamically instruct linear actuator motion.

Technical Snapshot

Tube wall with circumferentially spaced slots connecting interior to exterior
Internal control surface assembly aligns fins with slots
Actuator capable of moving fins between retracted and extended positions
Suited for webs: paper, PET film, battery separator film, conveyor belts, abrasive belts, treadmill loops

Use Cases / Applications

Paper production & conversion, printing presses (improved registration)
Conveyor and sorting systems at warehouses, airports, shipping facilities
Manufacturing and processing lines for roofing shingles, battery separators, textiles, plastic and other films
Treadmill and closed-loop web devices requiring controlled tracking

Contact / Inquiries

For licensing, sales, or general inquiries, please email. Provide organization, application, and any NDA status if relevant.

Email: info@rollershark.com

Please allow 2-3 business days for response