Tire deflating blade perimeter protection system

Abstract

A tire deflating blade perimeter protection system having a control box in communication with a plurality of interconnected modules, each module being a base block with a plurality of blades pivotally connected to a center shaft such that the blades rotate between an armed, up, position and a retracted, down, position wherein the height and angle of the blades in the armed position are adjustable. Each blade is disposed in a blade aperture in the base block wherein the blade aperture is open through the base block to allow for the passage of dirt and debris through the module. A control box ramp is adapted to be placed over the control box as means of protecting the control box from an on-coming vehicle. An extension assembly connecting the control box to the modules extends and raises the control box in relation to the modules.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Application No. 60 / 574,880, filed May 26, 2004.BACKGROUND [0002] 1. Technical Field [0003] The present invention relates to apparatuses for deflating the tires of a vehicle, and specifically, to an apparatus having a plurality of blades rotatably disposed within a module base, wherein the height and angle of the blades are adjustable. [0004] 2. Related Art [0005] Tire deflation devices are well known in the prior art and available in many different shapes and sizes. These devices typically comprise some type of support base containing a plurality of spikes or blades, and in certain circumstances, the spikes or blades are rotatable between an armed position and a stored or retractable position. The base is placed on a road surface so that a passing vehicle runs over the device and the spikes or blades puncture the tires, thereby rendering the vehicle disabled. [0006] In one such system, U.S. Pa...

AI Technical Summary

Benefits of technology

[0012] The tire deflating blade system of the present invention also incorporates a means for allowing debris and dirt to pass through a module. This is accomplished by a plurality of blade apertures open through the module base. Thus, as dirt and debris falls into the blade apertures, such dirt and debris passes through the module and can be washed away. This structure ensures the continued operation of the blades without being subjected to an accumulation of dirt and debris to interfere with the working mechanism.

[0013] The tire deflating blade system of the present invention also provides a means for protecting the control box controlling the activation of the blades in the modules of the system. In the preferred embodiment, a ramp module with a chamber on its underside is placed over the control box such that an oncoming vehicle will go up and over the control box preventing any damage thereto. Also, an extension assembly is used to connect the control box to the first module of the system such that the extension assembly extends and raises the control box in relation to the modules. The extension assembly allows the modules to be placed on lower terrain or embedded within a roadway with the control box being above and away from the modules, or provides a drainage path for water and debris to pass under the control box.

Problems solved by technology

Thus, as dirt and debris falls into the blade apertures, such dirt and debris passes through the module and can be washed away.

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