Abstract:
This device provides an effective means of remotely sampling, depressurizing, viewing, introducing agents or neutralizing potentially hazardous materials primarily in sealed containers or areas where it is desired to prevent environmental leakage or venting. This invention installs a semi permanent closable port into a drum or container, duct, wall or other enclosed area where access is desired.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS  
       [0000]     Not Applicable  
       STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT  
       [0000]     Not Applicable  
       DESCRIPTION OF ATTACHED APPENDIX  
       [0000]     Not Applicable  
       BACKGROUND OF THE INVENTION  
       [0001]     This invention relates generally to the field of Industrial Hygiene, Homeland Security and HAZMAT handling and more specifically to a Device and Process For Sampling, Venting or Viewing Suspected HAZMAT Drums, Containers, Ductwork or Various Enclosures Without Leakage.  
         [0002]     This invention is very compact and drives a valve into a container while keeping the container sealed. The valve can be left in place allowing for secondary tests or fluid sampling after initial venting and testing. Until now, no such device has existed. A need exists for a uniform and safe method for sampling drums and containers in compliance with OSHA regulations, 29 CFR) Hazardous waste operations and emergency response. −1926.650)(1)(ix) et seq.  
         [0000]     OSHA is clear that any unmarked drum must be treated as one containing hazardous materials.  
         [0003]     The instant device is designed to penetrate, vent, sample and re-seal containers from a safe distance. The heart of the system is a configurable probe, that once installed in a container can be opened or closed at any time thus preventing hazardous materials from leakage into the atmosphere. Of particular use is the probes ability to seal and vent a pressurized drum or container, thereby minimizing explosion or exposure risk to personnel.  
         [0004]     Numerous devices have been invented that provide for some form of sampling but prior to this invention, nothing has been submitted that combines all of the necessary elements to safely sample a broad spectrum of materials in potentially pressurized containers and reseal the container. This invention combines all of the above and does so remotely, from a safe distance.  
         [0000]     The prior art is best demonstrated in devices patented by Volz U.S. Pat. No. 5,841,038 and by Garcia, et al in U.S. Pat. No. 6,065,488. These are two different approaches dealing with the problem of sampling suspected HAZMAT containers.  
         [0005]     Efforts have been made to both penetrate and seal, such as U.S. Pat. No. 6,065,488, which uses a chemical sealant that could react with certain materials, further, the sealant must be heated up to 100 degrees centigrade, further increasing risk. U.S. Pat. No. 6,065,488 also drills through a container wall increasing risk of spark and lacks remote capability.  
         [0006]     The Volz device, while robust, is cumbersome and complicated in comparison to this invention. It requires large compressed air cylinders and air hose to operate. Since the Volz device uses a fixed needle, it must be decontaminated after each use—a substantial drawback if scores of containers must be tested, especially if time is critical. The Volz device, once removed, leaves a hole, leaking contents into the environment.  
       BRIEF SUMMARY OF THE INVENTION  
       [0007]     The primary object of the invention is to satisfy the need for a flexible, uniform, modular and safe method for sampling Hazmat drums and other containers from a safe distance, without leakage, with probes to suit almost any need, from viewing to sampling for radioactive or other hazardous material.  
         [0000]     Another objective is to provide a method to prevent hazardous contents from leaking out, before during or after testing.  
         [0000]     Another object is to provide a means of remotely accessing any enclosed area with a camera or sensors.  
         [0000]     Another object is to reduce the size of the probe and to define a better point to minimize wall distortion  
         [0000]     Yet another objective is to accomplish all of the above in an easy to operate system that is small enough to fit in one hand.  
         [0008]     Other objects and advantages of the present invention will become apparent from the following descriptions, taken in connection with the accompanying drawings, wherein, by way of illustration and example, an embodiment of the present invention is disclosed.  
         [0009]     This invention is intended to provide the means by which a probe can be inserted into a sealed container of unknown content or suspected of containing hazardous materials without leaking the container&#39;s contents. The probe may be a camera, a venting port, gas sampling port, a liquid sampling port or a sensor. The probe is highly resistant to corrosives and non-reactive to most known materials. This invention prevents leakage of hazardous materials while sampling and afterwards. It allows for re-sampling at any time and vents pressurized containers to provide for safe handling.  
         [0010]     In its preferred embodiment, gas pressure, controlled by a solenoid, remotely is released into a cylinder, driving a Piston ( FIG. 4 ) against a Lever ( FIG. 4 ) ( FIG. 3  and  FIG. 4 ). The Lever ( FIG. 4 ) drives the probe ( FIG. 1  and  FIG. 2 ) against a container wall by first contacting the seal. After a seal has been established, the probe continues into the container wall. The tip cuts three sides of the entry hole, and rolls the container wall away, still attached to the container to prevent contaminating the container contents with wall material or paint. Barbs on the tip of the probe flex inwards while passing through the wall and expand after passing, When the driving force is relaxed, the barbs grip the inside edge of the wall, locking the Probe ( FIG. 1  and  FIG. 2 ) in place. A valve (solenoid or manual) in the Probe ( FIG. 1  and  FIG. 2 ) allows for testing, venting and re-sealing. Quick connects allow for tubing be attached to the Probe ( FIG. 1  and  FIG. 2 ). Surface mount sensors in the Probe ( FIG. 1  and  FIG. 2 ) can detect certain conditions of the headspace air.  
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0011]     The drawings constitute a part of this specification and include exemplary embodiments to the invention, which may be embodied in various forms. It is to be understood that in some instances various aspects of the invention may be shown exaggerated or enlarged to facilitate an understanding of the invention.  
         [0012]      FIG. 1  is a general perspective view of the Probe ( FIG. 1  and  FIG. 2 ) Assembly portion of the invention.  
         [0013]      FIG. 2  is an exploded modular view of the Probe ( FIG. 1  and  FIG. 2 ) Assembly. The valve is depicted in this drawing as an electrically controlled device although simple manual configurations are anticipated. The drawing illustrates barbs near the tip to secure the device to a drum. Other methods of expansion devices, such as springs, elastic materials or toggles are anticipated by this application  
         [0014]      FIG. 3  is a general perspective view of the Installation Tool ( FIG. 3  and  FIG. 4 )  
         [0015]      FIG. 4  is an exploded view of the Installation Tool ( FIG. 3  and  FIG. 4 ) with the Probe ( FIG. 1  and  FIG. 2 ) included in the drawing. This is a simplified drawing suggesting one method of constructing the Installation Tool ( FIG. 3  and  FIG. 4 ). A 12 Gram CO2 Cartridge is shown but the device may also operate by way of a separate cylinder of compressed gas, a hydraulic source or a motor driven screw.  
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0016]     Detailed descriptions of the preferred embodiment are provided herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system, structure or manner.  
       Description of a Preferred Embodiment  
       [0017]     In its preferred embodiment, the tool is connected to a cable leading to a remote control switch and battery. (alternatively a wireless apparatus can be employed) The lockout/tagout key is removed from the remote. The installation tool is attached to a container by means of a ratcheting strap. A small cylinder of compressed gas is installed in the tool and opened. A probe is selected and installed in the tool by removing the installation Lever ( FIG. 4 ). To remove the Lever ( FIG. 4 ) a pin is removed from the fulcrum. The probe is inserted into the probe guide and the Lever ( FIG. 4 ) is reinstalled. A sampling hose is connected to the probe, which may lead to a container capable of containing excess-vented pressure. The technician then connects the remote cable and exits to a safe location as defined by OSHA. When the area is cleared and it&#39;s safe to do so, the technician inserts his key into the remote, enabling the device. Feedback from the device indicates that there is sufficient pressure available. The Probe ( FIG. 1  and  FIG. 2 ) may now be deployed.  
         [0018]     When the deployment switch in engaged, a solenoid will open, allowing a cylinder to pressurize. The pressure will move a Piston ( FIG. 4 ) away from the container, pushing against the installation Lever ( FIG. 4 ). The Lever ( FIG. 4 ), in turn, will push the probe towards the container. An expanded Teflon seal will contact the container first, its pressure against the container increasing as the probe is pushed farther in. The spring behind the seal keeps the seal pressed tight as the probe tip passes through the seal. The probe tip is then pressed through the container wall exposing it to the material inside the container. Barbs on the probe tip will compress as they pass through the container wall and expand after passage. There is a small port in the installation tool cylinder allowing a controlled leak of pressurized gas. As the gas escapes, the pressure that moved the Piston ( FIG. 4 ) will subside, allowing the probe spring to pull the probe back, drawing the barbs into contact with the container wall. The barbs hold the probe securely in position, maintaining spring pressure against the seal. A proximity switch confirms to the technician by signaling the remote unit that the probe has been properly installed.  
         [0019]     If the probe is equipped with a pressure transducer advising the operator that the container is under pressure, the technician may open the probes solenoid valve to vent the overpressure. The contents may be sampled at this time or later. The installation tool may be removed as the probe is securely affixed to the container wall.  
         [0020]     The probe is a simple device, consisting of a valve head, a tube cut at an angle and sharpened on three sides, with barbs, just below the opening, a seal and washer, a spring and one or more quick connect ports. If the probe is equipped with a solenoid valve or sensors, an electrical plug will be located near the quick connect.  
         [0021]     The installation tool has a guide to prevent lateral movement of the Probe ( FIG. 1  and  FIG. 2 ). A Lever ( FIG. 4 ) drives the probe through the container wall. A Lever ( FIG. 4 ) has been chosen to keep the mass of the device as close to the container as possible. (A direct acting ram, such as the Volz device, by protruding farther from the container, unnecessarily increases the moment and requires greater force to attach the tool. By keeping the ram only a couple inches away from the container, the tool can also be placed in tighter spaces as well.) The Lever ( FIG. 4 ) rocks on a removable pin and is moved by a Piston ( FIG. 4 ), spring or electric motor. If a Piston ( FIG. 4 ) is used, it is driven by a compressed gas, such as a 12-gram co2 cartridge, controlled by a solenoid or timer. The solenoid is connected by wire with a remote switch with a lockout key or by radio or infrared remote. A pressure switch can be located in the passage between the gas supply and the solenoid to light an L.E.D. on the remote to make the operator aware that the unit is fully pressurized. Likewise, a pressure transducer could be placed in the Probe ( FIG. 1  and  FIG. 2 ) and coupled with the remote to advise the operator of unsafe pressure in the container being tested. A second switch in the remote would operate a solenoid valve in the probe to vent excess pressure or for sampling.  
         [0022]     While the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the particular form set forth, but on the contrary, it is intended to cover such alternatives, modifications, and