SDS Grounding Rod With Case-Hardened Tip for Safer Installation

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Solution Overview

Problem

Existing methods for installing grounding rods are hazardous due to the risk of injury from hammering into various ground materials.

Innovation Solution

A self-installing hammer drill SDS-based grounding rod with a shaft, flanges, and a case-hardened tip, designed to be coupled with a hammer drill for easy and safe installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If grounding rods are installed by hammering them into the ground material, then the grounding rod can be installed into the ground, but workers risk injury from the impact force and unknown ground materials

Engineering Contradiction:
Improveworker safetyVSAvoidinstallation difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the manual hammering mechanical system with a power-driven rotary drilling system. The grounding rod incorporates a drill bit at its lower end that rotates within an SDS chuck, converting the impact-based installation method into a controlled rotary drilling operation that cuts through ground materials safely and efficiently.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The grounding rod is designed as a self-contained installation system where the rod itself includes the drilling mechanism (drill bit integrated into the rod body). The rod serves dual purposes: as the grounding conductor and as the drilling tool, eliminating the need for separate installation equipment and enabling self-installation without manual hammering.

Inventive Principle:
Principle #25Self-service

2Productivity

If a hammer drill is used to rotate the grounding rod, then installation efficiency increases, but the device complexity increases due to additional components

Engineering Contradiction:
Improveinstallation speedVSAvoidrod structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the grounding rod body with the drill bit functionality. The drill bit is integrated directly into the lower end of the rod shaft, combining two separate components (grounding rod and drill bit) into a single unified structure. This integration maintains productivity benefits while minimizing additional complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The grounding rod serves multiple functions: it acts as the electrical grounding conductor, as the drilling tool (with integrated drill bit), and as the installation mechanism itself. This multi-functionality eliminates the need for separate installation equipment, improving productivity without proportionally increasing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution enables safe and efficient installation of grounding rods by using a hammer drill to rotate the rod, which is equipped with case-hardened flanges and a tip to cut through ground materials, reducing the risk of injury.

Implementation Method 1

a case-hardened tip coupled to the lower end of the shaft member... The case-hardened flanges and tip cut through ground materials

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentUS12305351B2Self-installing hammer drill SDS grounding rod
Publication Date: 2025.05.20 CONNELLY PAUL
  • US12305351B2 patent drawing
  • US12305351B2 patent drawing

AI summary

An article of manufacture for providing a self-installing hammer drill SDS-based grounding rod according to the present invention is disclosed. The grounding rod includes a shaft member having a top end and a lower end, an SDS-style slot about the top end for coupling within a chuck of a hammer drill, a set of flanges extending out from the shaft member about the lower end, and a case-hardened tip coupled to the lower end of the shaft member.