Concentric counter-coil cord tie-down that wedges a cord between two coaxial coils
A wall- or surface-mounted tie-down made from two concentric cylindrical coil loops that form a horizontal gap where an elongate cord or bungee is snugly wedged to hold cargo. The device mounts to a fixed location (vehicle bed, wall, dock) and secures items by crowding the cord into the gap so friction and geometry inhibit movement; intended users include drivers, boaters and shops that need quick, tool-free anchoring.
(57) What the patent covered
The main independent claim covered a mounting assembly with a first cylindrical coil (smaller radius) and a second cylindrical coil (larger radius) arranged coaxially and both attached to the mounting assembly, with at least one substantially horizontal gap between loops such that an elongate tie-down is snugly pulled into that gap to secure items by preventing movement.
The distinctive part: The distinguishing detail was using two concentric, counter coils fixed to a surface to create a horizontal wedge gap that traps a cord without a buckle or cleat.
Novelty 3/5. This is a clever mechanical twist on familiar cord-retention hardware (cleats, hooks, D‑rings) by using concentric coil geometry rather than a notch, cam or cleat to hold the line.
Making it
Stamped or cast mounting plate, formed wire coils (bent and welded or welded-turn-wire) attached to the plate by spot welding or fasteners, surface finish (powder coat or plating), and simple assembly of coil-to-plate and fasteners.
Materials: spring steel or stainless steel wire for coils, stamped steel or cast aluminum mounting plate, fasteners (bolts or machine screws), optionally powder coat or passivate finish
Manufacturability 4/5. Parts are simple (formed wire loops plus a plate) and can be made with common tooling, though coil forming and secure attachment require jigs; low part count and mostly mechanical assembly.
Is anyone buying?
Comparable products are on sale; this exact design wasn't found. Multiple vendors offer bed-tie-down anchors with high variety (retractable, fixed-loop, etc.); strong consumer presence and active ecommerce listings.
- BullRing Inner Bed Tie Down Anchors for Chevy & GMC Trucks · BullRing USA
- BullRing Flush Fit Tie-Down Anchors (Ford F-150 & Super Duty) · BullRing USA
- Truck Buddiez Pickup Truck Bed Anchor (8 Pack) · Truck Buddiez
This demand check was run with a web search in the week of Oct 5, 2026. Listings change often, so treat it as a starting point for your own research.
Who buys it: truck and trailer owners, boaters, fleet maintenance shops
Sourcing
Factories list related products that could likely be adapted. I searched Alibaba/Global Sources/DHgate and found no listings that match an exact 'concentric counter-coil cord tie-down' with a defined price. Closest results are generic coil/lanyard components or unrelated cord-management products; none of the pages clearly list unit pricing or MOQ for a two-coil wedge-style tie-down as described. If you want, I can broaden to related hardware (rope/cord anchors, vehicle tie-downs) and quote those once I locate specific listings with prices.
Supplier prices come from public listings found with a web search and are usually quoted before customization, shipping and duties, so use them to judge whether a product is worth a quote request.
Before you make it
We didn't find any related continuation or divisional patents still in force, although that doesn't rule out design patents, trademarks or unrelated patents covering the same product.
Practical risks include limited holding power compared with ratchet straps for heavy loads, potential cord wear from concentrated contact, and crowded market of simple tie-down hardware; patent lapsed so no ongoing exclusivity.
Owners occasionally revive lapsed patents (about 1.5% are), and this page is a research lead rather than legal advice, so get a freedom-to-operate opinion before you manufacture anything.