US3726645A - Inert plastic film for support and packaging of chemical spot test systems - Google Patents

Inert plastic film for support and packaging of chemical spot test systems Download PDF

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US3726645A
US3726645A US00052499A US3726645DA US3726645A US 3726645 A US3726645 A US 3726645A US 00052499 A US00052499 A US 00052499A US 3726645D A US3726645D A US 3726645DA US 3726645 A US3726645 A US 3726645A
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plastic film
chemical
packaging
support
test systems
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T Kaczmarek
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/26—Articles or materials wholly enclosed in laminated sheets or wrapper blanks

Definitions

  • ATTORNZ 2 United States Patent 3,726,645 INERT PLASTIC FILM FOR SUPPORT AND PACK- AGING OF CHEMICAL SPOT TEST SYSTEMS Thomas D. Kaczmarek, Pittsburgh, Pa., assignor to the United States of America as represented by the Secretary of the Army Filed July 6, 1970, Ser. No. 52,499 Int. Cl. B65d 79/00, 83/00; G01n 31/22 US. Cl. 23-253 TP 3 Claims ABSTRACT OF THE DISCLOSURE An apparatus, method, and material for the packaging and support of chemical spot test systems; the invention being utilized to eliminate any reaction between the chemical system and the container means.
  • the container means containing a plurality of spot tests and the apparatus being sufiiciently compact to carry in a jacket or shirt pocket.
  • My invention relates to a new apparatus, material, and method for the packaging and support of chemical spot test systems containing multiple spot tests enclosed in a container which can be carried in a jacket or shirt pocket.
  • the spot tests in the aforementioned systems are designed to detect chemical species down to 0.02 part per million in water and air and the packaging and support means are made of weldable and impermeable plastic film. All commercially available weldable and impermeable plastic films contain 50 to 100 parts per million of volatile low molecular weight fragments which adversely affect the aforementioned spot test systems which leads to false positive tests and/or completely inactive spots.
  • My invention was conceived and reduced topractice to overcome the aforementioned packaging and support means problem and to satisfy the long felt need for a material to package and serve as a support means for chemical spot test systems without adversely afiecting the chemical reactions of the spot test systems.
  • My invention has utility in any chemical system Where reaction between the container means and the chemical system must be eliminated.
  • the principal object of my invention is to provide a reliable and etfective means, material, and method for packaging and support means for chemical spot test systems without any adverse affect of the packaging and support material on the chemical reactions of the chemical system.
  • FIG. 1 is a view showing an aluminum protective shield and a cover, made of plastic film, for the plastic film container means shown in FIG. 2; the view being prior to lamination.
  • FIG. 2 is an exploded view showing a container means made of plastic film and components to be assembled within the container means.
  • FIG. 3 is an exploded view showing the structure shown in FIG. 2 after assembly of the components therein with a module means, made of my plastic film, above the FIG. 2 structure and also showing components to be assembled within the module means.
  • FIG. 4 is an exploded view showing the structures shown in FIG. 1, after lamination, located above the structures shown in FIG. 3 preparatory to lamination of the entire system.
  • FIG. 5 is a view showing the entire assembly of structures shown in FIGS. 1 to 4 after lamination.
  • the plastic film to produce cover 4, package 11, and module 6, shown in FIGS. 1 and 3, was produced by subjecting a commercially available chlorofluorocarbon film of the general formula (CF;,-CFC1) to a vacuum of approximately 1 millimeter of mercury at 195 F. until the volatile content of the film was reduced to no greater than 0.05 part per million when measured at F. under a vacuum of approximately 1" of mercury; the measurement at 150 F. being made in the conventional manner.
  • the resulting vacuum treated film remained pliable, weldable, and impermeable. While any part configuration for any desired chemical system application can be stamped from the above described plastic film, exemplary configurations are demonstrated by aforementioned structures 4, 11, and 6.
  • an exemplary system for detection of nerve agent present in air or water is provided by inserting sintered glass disc 7 in recess 1 and superimposing an enzyme spot disc 8 on disc 7, the enzyme spot being any conventional composition such as that impregnated in the enzyme paper described in US. Pat. Ser. No. 3,049,- 411; inserting a buffer in a plastic film package 9, the buffer being a composition as described in the aforementioned US. patent, in recess 10; inserting aluminumdiscs 12 in recess 2; inserting CuCl in a plastic film package 13 in recess 14; and inserting in recess 3, a substrate 1 5 of composition such as described in US. Pat. Ser. No. 3,515,644.
  • a system for detecting mustard agent in air or water can be provided in combination with the above described nerve agent detection system by inserting a plastic film disc 16, made of my plastic film, in recess 17 of module 6 and superimposing on disc 16 a mustard agent spot test 18 of composition 4-nitrobenzyl pyridine impregnated in a conventional substrate; inserting package 11, made of my plastic film, containing K CO within recess 19; and superimposing module 6 on section 5 of the container shown at 20 in FIG. 3.
  • My plastic film has particular utility regarding the mustard agent detection system, because this system is very sensitive to contamination by volatile matter within commercially available plastic film.
  • package 9 is ruptured by squeezing to cause the buffer solution content to flow through channel 24 to thoroughly wet disc 8; unit 22 is exposed to the environment containing suspected nerve agent and/or mustard agent for approximately six minutes; package 13 is ruptured and the CuCl solution squeezed along channel 25 to contact aluminum discs 12 to generate sufiicient heat to achieve adequate sensitivity for the mustard agent spot test, completion of the mustard agent test being subsequently described; unit 22 is folded along line 26 and spot disc 8 held against substrate 15 for approximately two minutes; upon folding unit 22 back to the position shown in FIG.
  • An apparatus for detection of environment toxic agent contamination comprising a protective shield means; a plastic film container; a plastic film cover means located between the shield means and said plastic film container means; said plastic film container means having a plurality of recesses formed therein to receive a plurality of toxic agent chemical detection components; a plastic film module means located between the said plastic film cover means and the plastic film container means; and a plastic film package means containing a chemical component to cooperate in toxic agent detection, the plastic film package being adapted to be located within a recess formed in the plastic film module means; wherein the improvement in combination therewith is a pliable, weldable, and impermeable plastic film of the for- 4 mula (CF -CFCl) when measured at F. under a vacuum of approximately one inch of mercury; the vacuum treated plastic film being used to form the plastic film cover means, the plastic film module means, and the plastic film package means.
  • CF -CFCl for- 4 mula

Abstract

AN APPARATUS, METHOD, AND MATERIAL FOR THE PACKAGING AND SUPPORT OF CHEMICAL SPOT TEST SYSTEMS, THE INVENTION BEING UTILIZED TO ELIMINATE ANY REACTION BETWEEN THE CHEMICAL SYSTEM AND THE CONTAINER MEANS, THE CONTAINER MEANS CONTAINING A PLURALITY OF SPOT TESTS AND THE APPARATUS BEING SUFFICIENTLY COMPACT TO CARRY IN A JACKET OR SHIRT POCKET.

D R A W I N G

Description

tm 1973 T. D. KACZMAREK 3,726,545
INERT PLASTIC FILM FOR SUPPORT AND PACKAGING OF CHEMICAL SPOT TEST SYSTEMS Filed July 6, 1970 INVENTOR Thomas D. Kaczmarek 77f. fiw
ATTORNZ 2] United States Patent 3,726,645 INERT PLASTIC FILM FOR SUPPORT AND PACK- AGING OF CHEMICAL SPOT TEST SYSTEMS Thomas D. Kaczmarek, Pittsburgh, Pa., assignor to the United States of America as represented by the Secretary of the Army Filed July 6, 1970, Ser. No. 52,499 Int. Cl. B65d 79/00, 83/00; G01n 31/22 US. Cl. 23-253 TP 3 Claims ABSTRACT OF THE DISCLOSURE An apparatus, method, and material for the packaging and support of chemical spot test systems; the invention being utilized to eliminate any reaction between the chemical system and the container means. The container means containing a plurality of spot tests and the apparatus being sufiiciently compact to carry in a jacket or shirt pocket.
The invention described herein may be manufactured, used, and licensed by or for the Government for governmental punposes without the payment to me of any royalty thereon.
My invention relates to a new apparatus, material, and method for the packaging and support of chemical spot test systems containing multiple spot tests enclosed in a container which can be carried in a jacket or shirt pocket.
The spot tests in the aforementioned systems are designed to detect chemical species down to 0.02 part per million in water and air and the packaging and support means are made of weldable and impermeable plastic film. All commercially available weldable and impermeable plastic films contain 50 to 100 parts per million of volatile low molecular weight fragments which adversely affect the aforementioned spot test systems which leads to false positive tests and/or completely inactive spots. My invention was conceived and reduced topractice to overcome the aforementioned packaging and support means problem and to satisfy the long felt need for a material to package and serve as a support means for chemical spot test systems without adversely afiecting the chemical reactions of the spot test systems.
My invention has utility in any chemical system Where reaction between the container means and the chemical system must be eliminated.
The principal object of my invention is to provide a reliable and etfective means, material, and method for packaging and support means for chemical spot test systems without any adverse affect of the packaging and support material on the chemical reactions of the chemical system.
Other objects of my invention will be obvious or will appear from the specification hereinafter set forth.
FIG. 1 is a view showing an aluminum protective shield and a cover, made of plastic film, for the plastic film container means shown in FIG. 2; the view being prior to lamination.
FIG. 2 is an exploded view showing a container means made of plastic film and components to be assembled within the container means.
FIG. 3 is an exploded view showing the structure shown in FIG. 2 after assembly of the components therein with a module means, made of my plastic film, above the FIG. 2 structure and also showing components to be assembled within the module means.
FIG. 4 is an exploded view showing the structures shown in FIG. 1, after lamination, located above the structures shown in FIG. 3 preparatory to lamination of the entire system.
FIG. 5 is a view showing the entire assembly of structures shown in FIGS. 1 to 4 after lamination.
3,726,645 Patented Apr. 10, 1973 My invention, as shown in FIGS. 1 to 5, will now be described in detail as follows.
The plastic film to produce cover 4, package 11, and module 6, shown in FIGS. 1 and 3, was produced by subjecting a commercially available chlorofluorocarbon film of the general formula (CF;,-CFC1) to a vacuum of approximately 1 millimeter of mercury at 195 F. until the volatile content of the film was reduced to no greater than 0.05 part per million when measured at F. under a vacuum of approximately 1" of mercury; the measurement at 150 F. being made in the conventional manner. The resulting vacuum treated film remained pliable, weldable, and impermeable. While any part configuration for any desired chemical system application can be stamped from the above described plastic film, exemplary configurations are demonstrated by aforementioned structures 4, 11, and 6. Also, while the above described plastic film is suitable for any applicable chemical system, an exemplary system for detection of nerve agent present in air or water is provided by inserting sintered glass disc 7 in recess 1 and superimposing an enzyme spot disc 8 on disc 7, the enzyme spot being any conventional composition such as that impregnated in the enzyme paper described in US. Pat. Ser. No. 3,049,- 411; inserting a buffer in a plastic film package 9, the buffer being a composition as described in the aforementioned US. patent, in recess 10; inserting aluminumdiscs 12 in recess 2; inserting CuCl in a plastic film package 13 in recess 14; and inserting in recess 3, a substrate 1 5 of composition such as described in US. Pat. Ser. No. 3,515,644. A system for detecting mustard agent in air or water can be provided in combination with the above described nerve agent detection system by inserting a plastic film disc 16, made of my plastic film, in recess 17 of module 6 and superimposing on disc 16 a mustard agent spot test 18 of composition 4-nitrobenzyl pyridine impregnated in a conventional substrate; inserting package 11, made of my plastic film, containing K CO within recess 19; and superimposing module 6 on section 5 of the container shown at 20 in FIG. 3. My plastic film has particular utility regarding the mustard agent detection system, because this system is very sensitive to contamination by volatile matter within commercially available plastic film. After assembly of the nerve agent system components and mustard agent system components as described above; container 20 with module 6 superimposed thereon, cover 4 superimposed on container 20 and module 6, and aluminum shield 21 superimposed on cover 4 are laminated together utilizing conventional laminating technique to form the integral chemical system unit shown at 22 in FIG. 5. While not a part of this invention, the operation of the above described exemplary nerve agent and mustard agent detection systems will be described as follows to render the application complete in all respects. To test the environment for nerve agent presence, shield 21 is peeled off by means of serrulated corner 23 as shown in FIG. 5 and the shield discarded; package 9 is ruptured by squeezing to cause the buffer solution content to flow through channel 24 to thoroughly wet disc 8; unit 22 is exposed to the environment containing suspected nerve agent and/or mustard agent for approximately six minutes; package 13 is ruptured and the CuCl solution squeezed along channel 25 to contact aluminum discs 12 to generate sufiicient heat to achieve adequate sensitivity for the mustard agent spot test, completion of the mustard agent test being subsequently described; unit 22 is folded along line 26 and spot disc 8 held against substrate 15 for approximately two minutes; upon folding unit 22 back to the position shown in FIG. 5, no color on spot disc '8 indicates presence of nerve agent which has inhibited the enzyme action, and, if no agent is present, a blue color results in disc 8 as a result of the substrate-enzyme reaction. To complete the test of the environment for mustard agent presence, after all of the steps described above regarding nerve agent detection have been performed, package 11 is ruptured and the K CO solution squeezed along channel 27 to wet spot 18; no color change in spot 18 after wetting by K CO indicates no mustard agent is present, and a change to a purple color, after spot 18 is wetted by K CO indicates the presence of mustard agent.
It is obvious that other modifications can be made of my invention, and I desire to be limited only by the scope of the appended claims.
I claim:
1. An apparatus for detection of environment toxic agent contamination comprising a protective shield means; a plastic film container; a plastic film cover means located between the shield means and said plastic film container means; said plastic film container means having a plurality of recesses formed therein to receive a plurality of toxic agent chemical detection components; a plastic film module means located between the said plastic film cover means and the plastic film container means; and a plastic film package means containing a chemical component to cooperate in toxic agent detection, the plastic film package being adapted to be located within a recess formed in the plastic film module means; wherein the improvement in combination therewith is a pliable, weldable, and impermeable plastic film of the for- 4 mula (CF -CFCl) when measured at F. under a vacuum of approximately one inch of mercury; the vacuum treated plastic film being used to form the plastic film cover means, the plastic film module means, and the plastic film package means.
2. The apparatus of claim 1 wherein the protective shield means, the cover means, the container means, and the module means are laminated together to form an integral nut.
3. The apparatus of claim 1 wherein the chemical component contained within the plastic film package means is K 00 References Cited UNITED STATES PATENTS 2,785,057 3/1957 Schwab et a1. 23-253 TP 3,018,611 1/1962 Biritz 23253 TP 3,036,894 5/1962 Forestiere 2 3-230 R 3,476,515 11/1969 Johnson et a1 2'3--230 R MORRIS O. WOLK, Primary Examiner R. M. REESE, Assistant Examiner US. Cl. X.R.
206-47 A, 56 A, 56 AA
US00052499A 1970-07-06 1970-07-06 Inert plastic film for support and packaging of chemical spot test systems Expired - Lifetime US3726645A (en)

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Cited By (25)

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US3966412A (en) * 1975-03-25 1976-06-29 The United States Of America As Represented By The Secretary Of The Army Lewisite detection sampler and method
US4269804A (en) * 1979-08-24 1981-05-26 E. I. Du Pont De Nemours And Company Self-contained gaseous contaminant dosimeter
US4859421A (en) * 1987-06-23 1989-08-22 The Research Foundation Of State University Of New York Disposable antigen concentrator and detector
EP0352689A1 (en) * 1988-07-28 1990-01-31 Jean Guigan Device for biological analyses by enzymimmunassay detection of antibodies or antigens in a serum
DE3839321A1 (en) * 1988-11-22 1990-05-23 Wolfgang Gerigk Device for the detection of poisonous materials by means of indicator paper
US5035860A (en) * 1989-02-24 1991-07-30 Duphar International Research B.V. Detection strip for detecting and identifying chemical air contaminants, and portable detection kit comprising said strips
US5092466A (en) * 1988-10-21 1992-03-03 Large Scale Biology Corportion Apparatus and method for storing samples of protein gene products, insert-containing cells or dna
US5229297A (en) * 1989-02-03 1993-07-20 Eastman Kodak Company Containment cuvette for PCR and method of use
US5840573A (en) * 1994-02-01 1998-11-24 Fields; Robert E. Molecular analyzer and method of use
US6426230B1 (en) 1997-08-01 2002-07-30 Qualigen, Inc. Disposable diagnostic device and method
US6645758B1 (en) 1989-02-03 2003-11-11 Johnson & Johnson Clinical Diagnostics, Inc. Containment cuvette for PCR and method of use
US20050026126A1 (en) * 2003-07-30 2005-02-03 Hageman James H. Method for students to carry out chemical reactions
US20060166177A1 (en) * 2003-07-30 2006-07-27 Hageman James H Method of incorporating an active learning experience into a classroom
US20080267825A1 (en) * 2007-01-26 2008-10-30 Nec Corporation Gas detecting apparatus
US20090136913A1 (en) * 2007-06-21 2009-05-28 Gen-Probe Incorporated Gravity-Assisted Mixing Methods
US20090325300A1 (en) * 2006-07-26 2009-12-31 Clift Vaughan L Apparatus and method for detection of trace chemicals
US20110129394A1 (en) * 2002-10-01 2011-06-02 Robert Holt Inspection and testing indicator
US20110198253A1 (en) * 2008-12-01 2011-08-18 Isamu Sato Storing package unit and a storing method for micro solder spheres
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US3966412A (en) * 1975-03-25 1976-06-29 The United States Of America As Represented By The Secretary Of The Army Lewisite detection sampler and method
US4269804A (en) * 1979-08-24 1981-05-26 E. I. Du Pont De Nemours And Company Self-contained gaseous contaminant dosimeter
US4859421A (en) * 1987-06-23 1989-08-22 The Research Foundation Of State University Of New York Disposable antigen concentrator and detector
US5061446A (en) * 1988-07-28 1991-10-29 Jean Guigan Device for performing biological analyses by immunoenzymatic detection of antibodies or antigens in a serum
EP0352689A1 (en) * 1988-07-28 1990-01-31 Jean Guigan Device for biological analyses by enzymimmunassay detection of antibodies or antigens in a serum
FR2634892A1 (en) * 1988-07-28 1990-02-02 Guigan Jean DEVICE FOR PERFORMING BIOLOGICAL ANALYSIS BY IMMUNO-ENZYMATIC DETECTION OF ANTIBODIES OR ANTIGENS IN A SERUM
US5092466A (en) * 1988-10-21 1992-03-03 Large Scale Biology Corportion Apparatus and method for storing samples of protein gene products, insert-containing cells or dna
DE3839321A1 (en) * 1988-11-22 1990-05-23 Wolfgang Gerigk Device for the detection of poisonous materials by means of indicator paper
US5229297A (en) * 1989-02-03 1993-07-20 Eastman Kodak Company Containment cuvette for PCR and method of use
US6645758B1 (en) 1989-02-03 2003-11-11 Johnson & Johnson Clinical Diagnostics, Inc. Containment cuvette for PCR and method of use
US5035860A (en) * 1989-02-24 1991-07-30 Duphar International Research B.V. Detection strip for detecting and identifying chemical air contaminants, and portable detection kit comprising said strips
US5840573A (en) * 1994-02-01 1998-11-24 Fields; Robert E. Molecular analyzer and method of use
US6426230B1 (en) 1997-08-01 2002-07-30 Qualigen, Inc. Disposable diagnostic device and method
US20110129394A1 (en) * 2002-10-01 2011-06-02 Robert Holt Inspection and testing indicator
US8672362B1 (en) 2002-10-01 2014-03-18 Brady Worldwide, Inc. Single-piece tag
US8056498B2 (en) * 2002-10-01 2011-11-15 Brady Worldwide, Inc. Inspection and testing indicator
US20050026126A1 (en) * 2003-07-30 2005-02-03 Hageman James H. Method for students to carry out chemical reactions
US20060166177A1 (en) * 2003-07-30 2006-07-27 Hageman James H Method of incorporating an active learning experience into a classroom
US8980641B2 (en) 2006-07-26 2015-03-17 Detectachem, Llc Method for detection of chemicals on a surface
US20090325300A1 (en) * 2006-07-26 2009-12-31 Clift Vaughan L Apparatus and method for detection of trace chemicals
US20080267825A1 (en) * 2007-01-26 2008-10-30 Nec Corporation Gas detecting apparatus
US8491178B2 (en) 2007-06-21 2013-07-23 Gen-Probe Incorporated Instruments and methods for mixing the contents of a detection chamber
US20090136913A1 (en) * 2007-06-21 2009-05-28 Gen-Probe Incorporated Gravity-Assisted Mixing Methods
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US10688458B2 (en) 2007-06-21 2020-06-23 Gen-Probe Incorporated System and method of using multi-chambered receptacles
US8434614B2 (en) * 2008-12-01 2013-05-07 Senju Metal Industry Co., Ltd. Storing package unit and a storing method for micro solder spheres
US20110198253A1 (en) * 2008-12-01 2011-08-18 Isamu Sato Storing package unit and a storing method for micro solder spheres
USD794642S1 (en) * 2009-01-07 2017-08-15 Samsung Electronics Co., Ltd. Memory device
USD795261S1 (en) * 2009-01-07 2017-08-22 Samsung Electronics Co., Ltd. Memory device
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