Saddle Tee Interlocking Jaws Power Tool Piercing
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Solution Overview
Problem
Conventional saddle tees are time-consuming to install, require significant space for access, and can leak due to loose piercing mechanisms under fluid pressure.
Innovation Solution
A saddle tee design featuring a base unit with interlocking arcuate jaws and a tap with a tapered end and tool interface, allowing for rapid piercing and secure attachment to the main line using a power tool, and a locking mechanism that prevents unintentional rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional piercing mechanism is driven into the main line manually, then the saddle tee can be installed, but the installation process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent replaces manual mechanical piercing with a power tool-driven piercing mechanism. The tap is designed with a shaped portion that interfaces with power tools (drills, impact drivers), enabling rapid automated piercing of the main line without manual labor, thus dramatically increasing installation speed and reducing time loss.
Solution Approach 2:
The base unit is pre-configured with alignment features and receiving structures that guide the tap into proper position before piercing. The shaped portion of the tap is pre-formed to match the tool interface, allowing the power tool to be directly attached and immediately perform the piercing function without additional setup or alignment steps.
2Ease of operation
If the piercing mechanism is secured around the main line, then the saddle tee can be attached, but significant space must be cleared around the main line for proper access
Solution Approach 1:
The patent transitions from a two-dimensional clearance requirement (needing space around the pipe) to a three-dimensional solution where the base unit straddles the main line. The arcuate jaws wrap around the pipe in a circular path, allowing installation in confined spaces where only minimal lateral clearance is needed, effectively utilizing the radial dimension rather than requiring extensive linear clearance.
Solution Approach 2:
The base unit is divided into separate arcuate jaws that can be independently positioned and adjusted. This segmentation allows the jaws to conform to the main line and close around it in a stepwise manner, reducing the initial space required during installation while maintaining secure attachment.
3Reliability
If fluid pressure enters the piercing mechanism, then the saddle tee functions, but the piercing mechanism can become loose and create leaks or dislodge
Solution Approach 1:
The patent incorporates a locking mechanism that applies counteracting force in advance to prevent the tap from rotating or becoming loose under fluid pressure. The locking feature engages with the threads or seating surface of the tap, creating a preliminary restraining action that counteracts the loosening force generated by pressurized fluid, thereby preventing leaks and dislodgement before they can occur.
4Productivity
If the tap is rapidly driven into the main line using a power tool, then installation efficiency increases, but precise alignment and secure attachment become more difficult
Solution Approach 1:
The patent introduces alignment features as intermediary elements between the base unit and the tap. These features (such as aligned slots, guide pins, or keyed interfaces) act as mediators that automatically align the tap with the main line and the tool interface with the power tool before rapid piercing begins, ensuring precise positioning without sacrificing installation speed.
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
Facilitates faster and more secure installation with reduced risk of leaks, as the interlocking jaws and locking mechanism ensure proper alignment and secure attachment without manual adjustment, and the power tool aids in efficient piercing.
Implementation Method 1
The tap defines a passageway and includes a tapered end. The tapered end includes an aperture in fluid communication with the passageway.
Implementation Method 2
The base unit also includes interlocking arcuate jaws for securing the base unit to a main line.
Implementation Method 3
The shaped portion of the tap comprises a throat defining a portion of the passageway. Alternatively, the shaped portion may be a shaped protrusion on a first end of the tap, which is generally opposite the tapered end of the tap.
Data Source
AI summary
An improved saddle tee for branching a conduit from a main line is disclosed. The saddle tee includes a base unit that defines an opening for receiving a tap and interlocking jaws for securing the base unit to a main line. The tap may include a shaped portion for receiving a tool interface to rotate the tap to drive the tap into the main line. The tool interface could be secured to a power tool to enable rapid driving of the saddle tee into the main line. The saddle tee may also include offset arcuate interlocking jaws to enable the jaws to interlock around the main line with ease. Optional interface surfaces on the tap and base unit enable the tap and base unit to interlock to limit rotation of the tap relative to the base unit when the tap is fully inserted into the base unit.