Pipe Elbow Angle Marking for Precise Irregular Miter Cuts

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional pipe fitting systems are complex and require cumbersome calculations for determining and marking angles for cutting pipe elbow joints, especially for irregular angles, necessitating the use of degree calculators and angle reference tables.

Innovation Solution

An adjustable angle marker system comprising an adjustable angle gauge, marking platform, and pipe marking device that simplifies the process by directly measuring and marking irregular angles on pipe elbow joints, eliminating the need for complex formulas and calculators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional pipe fitting systems with formulas and angle reference tables are used, then angle determination can be achieved, but the process becomes complex and tedious

Engineering Contradiction:
Improveangle determination accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a physical angle reference tool with graduated markings that serves as an intermediary between the user and the pipe elbow joint. This tool provides direct visual alignment and measurement capabilities, eliminating the need for complex calculations while maintaining measurement precision through its calibrated scale and geometric reference features.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical calculation system (formulas, calculators, reference tables) with a direct geometric measurement system. The angle reference tool uses physical geometry and visual alignment to determine cutting angles, substituting computational mechanics with straightforward mechanical measurement and alignment procedures.

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

2Measurement precision

If degree calculators and angle reference tables are used, then correct angles can be determined, but the operation becomes cumbersome and time-consuming

Engineering Contradiction:
Improveangle determination accuracyVSAvoidoperational simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The angle reference tool is designed to be self-explanatory and self-sufficient, with built-in graduated markings and geometric references that provide direct guidance without requiring external reference materials or calculation procedures. The tool serves itself by incorporating all necessary measurement and alignment functions into a single portable device.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent incorporates pre-calculated angle references and geometric relationships directly into the physical tool structure. The graduated markings and reference features are prepared in advance during manufacturing, eliminating the need for users to perform calculations or consult external tables during the cutting operation.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If conventional marking methods are used, then angle marking can be performed, but accuracy for irregular angles is compromised

Engineering Contradiction:
Improvemarking simplicityVSAvoidcutting angle precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent introduces a specialized marking component that acts as an intermediary between the angle reference tool and the pipe surface. This component transfers the precise angular measurement directly onto the pipe elbow joint through physical contact and alignment, ensuring accurate marking of irregular angles without requiring complex marking procedures.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12569977B1Adjustable angle marker system for pipe elbow joints and method of use
Publication Date: 2026.03.10 GONZALEZ LEONEL
  • US12569977B1 patent drawing
  • US12569977B1 patent drawing
  • US12569977B1 patent drawing

AI summary

An adjustable angle marker system for pipe elbow joints is disclosed, providing an efficient and precise means of determining and marking angles for cutting 90-degree elbow joints, particularly at non-standard angles, eliminating the need for reference tables and angle calculations. An adjustable angle gauge is used to measure a desired angle at which to cut an elbow joint to properly join two pipe sections. The desired angle is transferred to a marking platform using the adjustable angle gauge set at the measured angle. The elbow joint is placed on the marking platform so that the angle marked on the marking platform properly aligns with a corresponding cut location on the elbow joint, which is marked on the elbow joint using a pipe marking device aligning the marked angle and the cut location.