Overview
This patent describes a practical, field-focused guard solution for auxiliary coupler assemblies on compact loaders and skid loaders. Filed in March 2018 and granted in May 2021, the protection system was prosecuted with careful claim drafting to cover both the encasement that wraps a top portion and interior side of the coupler and an articulating side plate that shields the exterior. Inventors based in Plantersville, TX developed a design that secures to a loader hinge extension with a removable ring and screw assemblies, while a set screw allows fine adjustment of fit. An edge trim aligns with the arm to keep debris out and distribute impact forces. The specification discloses multiple bent and unbent configurations and fastening patterns, providing durable, retrofittable protection for harsh construction environments. Our patent drafting emphasized robust claim scope and implementation flexibility to protect the commercial product and aftermarket retrofits.
Key Features
- Encasement plus side plate combination to resist side impacts
- Ring and ring-screw attachment to hinge extension for retrofit mounting
- Screw assemblies and set screw for adjustable, secure fit
- Edge trim for debris exclusion and force distribution
This coupler-guard concept addresses a common wear and damage point on hydraulic couplers, reducing downtime and maintenance costs. Its adaptability and rugged design make it relevant across construction and materials-handling equipment platforms.
Granted: 2021-05-04
