Remotely Deployed Spike Strip with Retractable Housing

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Solution Overview

Problem

Traditional spike strips pose a significant danger to law enforcement officers during deployment and can be conspicuous, noisy, and difficult to store, while also posing risks to innocent drivers and making it challenging to track fleeing vehicles.

Innovation Solution

A remotely deployable spike strip system with a housing, retractable spikes, and a mover that transitions between closed and open configurations in response to a remote signal, equipped with spike trackers for vehicle location tracking and a warning light for safety, allowing for quiet, inconspicuous deployment and easy storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional spike strips are deployed manually by LEOs beside the road, then the spike strips can be deployed to disable fleeing vehicles, but LEOs are struck by vehicles during deployment and cannot deploy earlier without damaging innocent vehicles

Engineering Contradiction:
Improvesafety of LEOs during deploymentVSAvoiddeployment timing flexibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the manual mechanical deployment system with an automated electromagnetic actuation system. Motors driven by batteries automatically deploy the spikes through electromagnetic force, eliminating the need for LEOs to manually throw spike strips and enabling remote deployment from a safe distance.

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

Solution Approach 2:

The spike strip system performs self-deployment through automated sensors and actuators. The system detects vehicle presence and automatically deploys spikes without human intervention, allowing deployment at optimal moments while protecting LEOs from vehicle contact.

Inventive Principle:
Principle #25Self-service

2Reliability

If spike strips are deployed remotely with large moving pieces, then deployment is safer for LEOs, but the large pieces catch the eyes of drivers of fleeing vehicles

Engineering Contradiction:
Improvesafety of LEOs during deploymentVSAvoidconspicuousness to fleeing drivers
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The spike strip is divided into multiple independent modules, each with its own housing and spike array. This segmentation allows the system to maintain a low profile while deployed, as the modular design reduces visual conspicuity compared to a single large moving deployment mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The spikes are nested within housings that can cover them when not in use. The housing structure allows the spikes to be concealed during storage and transport, presenting a low-profile appearance that does not attract the attention of fleeing drivers.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If spike strips are deployed remotely with loud noises, then deployment is safer for LEOs, but the loud noises catch the attention of fleeing drivers

Engineering Contradiction:
Improvesafety of LEOs during deploymentVSAvoidnoise conspicuousness to fleeing drivers
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces noisy mechanical deployment mechanisms with quiet electromagnetic motors. The battery-powered motors actuate the spike deployment through electrical energy conversion, eliminating the loud mechanical noises that would alert fleeing drivers to the spike strip's presence.

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

4Loss of information

If spike strips are left deployed after use, then tracking of fleeing vehicles is facilitated, but the spike strips pose a danger to innocent drivers arriving after the fleeing vehicle

Engineering Contradiction:
Improvetracking capability of fleeing vehiclesVSAvoiddanger to innocent drivers
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The spike strip system is designed to be dynamically reconfigurable. After tracking a fleeing vehicle, the system can be remotely commanded to retract or collapse the spikes, transitioning from a deployed hazardous state to a safe storage state while maintaining tracking capability through the attached trackers.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system separates the tracking function from the spike deployment function. Trackers remain attached to monitor the fleeing vehicle while the spikes can be retracted or the entire device recovered and stored, eliminating the danger to subsequent innocent drivers while preserving tracking information.

Inventive Principle:
Principle #34Discarding and recovering

5Length of moving object

If spike strips are stored in vehicle trunks, then portability is maintained, but the spikes snag objects and make safe storage difficult

Engineering Contradiction:
Improveportability for vehicle storageVSAvoidease of storage without snagging
Core Design Contradiction:
Length of moving objectVSEase of operation

Solution Approach 1:

The spikes are nested within protective housings that completely enclose them during storage. This nested configuration prevents the spikes from protruding and snagging objects in the vehicle trunk, while the compact housing maintains portability for easy placement in standard vehicle storage compartments.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The housing structure provides a flexible or compliant outer shell that protects the rigid spikes inside. This shell configuration allows the device to be stored compactly without the spikes exposing to the environment, preventing snagging of other objects during storage and transport.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS11680378B1Spike strip
Publication Date: 2023.06.20 FLEE TECHNOLOGIES LLC
  • US11680378B1 patent drawing
  • US11680378B1 patent drawing
  • US11680378B1 patent drawing

AI summary

Embodiments are directed toward a spike strip. The spike strip preferably includes a housing, a plurality of spikes disposed in the housing, a door, and a mover. The door is preferably configured to transition between a closed configuration in which the spikes are covered and prevented from puncturing tires of vehicles driving over the spike strip and an open configuration in which the spikes are exposed and allowed to puncture a tire of a vehicle driving over the spike strip. The mover is preferably configured to transition the door from the closed configuration to the open configuration responsive to a signal provided to the spike strip from a remote location.