En Novative Technologies, Inc.

En Chem, Inc.

Kejr Inc.

Lloyd E Jacobs

David E Turriff

Nils K Melberg

Christopher A Reitmeyer

John F Schabron

Thomas M Christy

Susan S Sorini-Wong

JoAnn L Johnson

A soil sampling system is provided that allows headspace screening of soil samples at spaced intervals along a soil sample liner without disturbing the soil samples to be collected and shipped to a laboratory for further testing. The soil sample liner includes a plurality of cylindrical liner sections positioned end-to-end in a linear array, with each liner section having a sidewall and open ends. A shrink-wrap material covers the liner sections and holds the liner sections together as an assembled unit. Some of the liner sections have access openings formed in a sidewall thereof for providing access to the soil samples contained therein. The liner sections having access openings are interspersed between other liner sections that do not have access openings. The access openings are used by piercing the shrink-wrap material covering the access opening, and inserting a probe tip through the access opening into a headspace to measure contamination.

Soil sampling system and method that allow headspace screening at spaced intervals without disturbing soil sample

A soil sample containment device is provided which allows soil samples to be contained within individual sections of a soil sampler liner. The device includes first and second end caps for covering and sealing the respective ends of the soil sampler liner section. Each end cap has a structure for coupling with the opposite end cap for securing the end caps together. The coupling structure for each end cap includes a hook arm and an eye arm. The hook arm of the first end cap can be coupled with the eye arm of the second end cap to secure the end caps together over the ends of the liner section. A flexible sealing material is provided within each end cap for providing a compression seal between the end caps and the liner section. The liner sections can be formed of different lengths and different materials to accommodate different soil tests.

Soil sample containment device and method

A soil-sampling tool extends along a longitudinal axis and includes a barrel having a soil-penetrating distal end, and a cap for closing the end. In the improvement, the barrel has a seal surface spaced from the end and also has a tapered lead portion between the surface and the end. The lateral dimension of the lead portion is less than that of the seal surface. The cap includes an abutment face and a seal spaced therefrom. The barrel seal surface is spaced from the barrel end by a dimension not greater than that between the cap seal and its abutment face. In a highly preferred embodiment, the barrel has a stop shoulder between the barrel seal surface and the barrel end. The cap includes a lip bearing against the stop shoulder and a tapered cap face substantially contacting the barrel face of the tapered lead portion. The tool also relates to a new method.

Soil sampling tool with unique vent-and-seal features and related method

The disclosure involves a soil-sampling tool having a barrel with a distal end for insertion into soil, and a plunger mounted for movement in the barrel. The plunger includes a soil-contact surface spaced from the distal end by a dimension when the barrel is filled with a soil sample having a volume. The improved tool includes a locking mechanism setting the dimension equal to a reference dimension, thereby establishing the volume of the soil sample to be equal to a predetermined or reference volume. In a more specific embodiment, there is an annular space between the barrel wall and the plunger head. Such head includes plural resilient sealing rings for sealing against the wall and closing the space. The tool also includes a feature for venting air otherwise trapped between the barrel/soil sample and the cap being mounted to the barrel.

Soil sampling tool with volume-indicating feature

Disclosed is a soil sampling tool having a barrel and a plug in the barrel for expelling a soil sample from the barrel. In the improvement, the plug is imperforate and includes a frangible section attached to the barrel. When the soil sample is expelled as, e.g., into a lab vial, force is applied to the plug, breaking the frangible section and urging the plug and the soil sample out of the barrel. Since it is imperforate, the plug prevents VOC vapors from migrating out of the mouth portion and the barrel is thereby made suitable for a single use and is disposable. The advantages include avoidance of sample 'cross-contamination.' A new method for analyzing a soil sample including the steps of providing a sampling tool having a barrel, a mouth portion and a plug retained in the barrel by a frangible section. The mouth portion is filled with a soil sample and the plug is urged toward the mouth portion, thereby breaking the frangible section and expelling the soil sample from the tool.

Tool and method for soil sampling

Disclosed is a tool-like cartridge for preserving a soil sample which may be contaminated with a volatile organic compound (VOC). The cartridge includes a barrel and a plug in the barrel for sealing the barrel proximal end during and after sampling and for later expelling the soil sample from such barrel. A threaded portion is on the barrel for attaching a handle and such portion has an opening through it. From the moment of sample extraction until later sample expulsion for analysis, the plug and its resilient seal member substantially prevent vaporized VOC from escaping from the cartridge. A new method for obtaining a soil sample for analysis is also disclosed.

Method for obtaining a soil sample

Soil sample containment cartridge with detachable handle

The invention is an improvement in a soil sampling tool of the type having a handle and a cylindrical sampling barrel with an aperture in the upper end. An ejector extends through the aperture and is attached to a plunger for urging the soil sample out of the barrel. In the improvement, the ejector and aperture define an annular clearance between them so that when a soil sample is taken (and the plunger thereby urged toward the barrel upper end), air can exhaust from the barrel. The plunger includes a boss which extends into and seals the aperture when the plunger is at or near its uppermost position. In that way, vapors of volatile organic compounds are prevented from escaping through the aperture. The tool also includes a cap for sealing the lower end of the barrel so that such vapors cannot escape from the barrel. The improved tool is particularly useful for taking and later analyzing soil samples relating to possible leaking underground storage tanks which contain or have contained petroleum distillates, e.g., gasoline or kerosene.

Growing community of inventors

Green Bay, WI, United States of America

Lloyd E Jacobs