US20010006609A1 - Paint test apparatus - Google Patents
Paint test apparatus Download PDFInfo
- Publication number
- US20010006609A1 US20010006609A1 US09/795,888 US79588801A US2001006609A1 US 20010006609 A1 US20010006609 A1 US 20010006609A1 US 79588801 A US79588801 A US 79588801A US 2001006609 A1 US2001006609 A1 US 2001006609A1
- Authority
- US
- United States
- Prior art keywords
- swab
- housing
- test
- paint
- vial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 239000003973 paint Substances 0.000 title claims abstract description 27
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011928 denatured alcohol Substances 0.000 abstract description 7
- 239000004816 latex Substances 0.000 abstract description 3
- 229920000126 latex Polymers 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 230000000717 retained effect Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000003149 assay kit Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/32—Paints; Inks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
- Y10T436/25375—Liberation or purification of sample or separation of material from a sample [e.g., filtering, centrifuging, etc.]
Definitions
- the present invention relates to test kits for determining the type of paint that has been previously applied to a surface.
- This invention is directed to the problem of determining whether the paint applied to a painted surface is an oil based paint or latex based paint. It is important to know what type of paint has been previously applied so that a compatible paint can be used to cover prior coats or so that appropriate preparations can be performed to change to a different type of paint. Paints applied to surfaces may be light colored, such as white paint, or dark colored, such as brown or green.
- test kit There is presently a need for a simple, disposable test kit that will provide clear test results regardless of the color of the paint to be tested.
- the test kit should not be prone to spillage but should be economical and easy to use.
- a test kit for testing paint on a painted surface includes a housing having an opening at one end.
- a liquid test reagent is contained within the housing.
- a swab is disposed in the opening of the housing substantially blocking the opening.
- a cap is removably secured to the housing to cover the swab when placed on the housing. The cap may be removed from the housing to reveal the swab.
- the test kit is used by removing the cap from the housing and rubbing the swab on the painted surface to test the composition of the surface.
- the swab preferably has at least two contrasting colored portions that form part of a single surface of the swab.
- the two contrasting colored portions may be different colors but most preferably are green and white.
- the swab may be formed in two separate portions or may be formed of a single portion that is dyed or colored at the end surface.
- the liquid test reagent is denatured alcohol.
- the denatured alcohol is preferably retained in a breakable glass vial until the test kit is ready to be used.
- the housing and cap are generally cylindrical in shape.
- the swab may also be a cylindrical member having a first semi-cylindrical portion formed of one color felt material and a second semi-cylindrical portion formed of a second contrasting color of felt.
- FIG. 1 is a perspective view of the paint test kit of the present invention.
- FIG. 2 is a cross-sectional view taken a long the line 2 - 2 in FIG. 1.
- FIG. 3 is a cross-sectional view taken along the line 3 - 3 in FIG. 1.
- FIG. 4 is a end view of an alternative embodiment of a swab used in the present invention.
- FIG. 5 is a perspective view of an alternative embodiment of the present invention.
- the test kit 10 includes a housing 12 formed of a rigid, flexible, plastic material that is cylindrical in shape and a cap 14 has an opening 16 formed at one end.
- a swab 18 formed of a relatively rigid absorbent felt material that is received in the opening 16 in a substantially sealing relationship so that it blocks the opening 16 .
- a frangible, or breakable, glass vial 20 shown in FIG. 2 is retained in the housing 12 .
- the vial 20 holds a test reagent 22 , such a denatured alcohol, until a force is applied to the housing 12 that causes the vial 20 to break.
- the vial 20 breaks, the housing 12 is held with its opening 16 in a downwardly orientation so that the test reagent 22 will flow to the swab 18 wetting the swab 18 with the test reagent 22 .
- a cap 14 is preferably provided to keep the swab 18 clean until the test kit is ready to be used.
- the cap is also provided to inhibit spilling of the test reagent 22 from the housing 10 through the opening 16 when the vial 20 is broken.
- the cap 14 is preferably formed of a cardboard material in a generally cylindrical shape.
- the swab 18 is preferably formed of a relatively hard, or stiff, felt material that is absorbent to allow the test reagent to be absorbed and retained in the swab 18 .
- the felt material is preferably formed in two separate portions 26 and 28 each being a contrasting color.
- the felt material may be formed as two semi-cylindrical felt swabs for maximum contrast. White felt provides the best contrast for colored paints while green felt is suitable for testing white painted surfaces.
- a swab 30 could be formed in a single piece and be provided with a ink or dye 32 that would provide contrasting portions on an end surface of the swab.
- the test kit will be formed of a pre-impregnated felt swab 34 that is substantially contained within a housing 36 formed of an impermeable plastic material that is not adversely affected by the denatured alcohol contained on the swab 34 .
- the test kit would also include a cap such as cap 14 shown in the embodiment of FIG. 1 that would be received on the end of the housing 36 in a sealing relationship.
- a frangible vial it is not necessary to break a frangible vial to release the test reagent and the test kit may be simply used by removing the cap and wiping the end of the swab 34 on the surface to be tested.
- the swab 34 is preferably formed in two parts with a dark felt section 38 and a white felt portion 40 .
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
A test kit for determining whether paint applied to a surface is oil base paint or latex base paint. The test kit comprises a housing that has a tip at one end that retains a swab and encloses a frangible reagent container. The swab extends through the tip and is divided into two contrastingly colored portions at the end. The reagent container is initially filled with denatured alcohol and is broken to allow the alcohol to flow to the tip. The tip is then wiped across the painted surface to be tested.
Description
- This application is a continuation of U.S. application Ser. No. 09/158,689 filed Sep. 22, 1998.
- The present invention relates to test kits for determining the type of paint that has been previously applied to a surface.
- This invention is directed to the problem of determining whether the paint applied to a painted surface is an oil based paint or latex based paint. It is important to know what type of paint has been previously applied so that a compatible paint can be used to cover prior coats or so that appropriate preparations can be performed to change to a different type of paint. Paints applied to surfaces may be light colored, such as white paint, or dark colored, such as brown or green.
- Professional painters test painted surfaces by applying denatured alcohol to a rag and rubbing it on the surface. If paint residue appears on the rag it is determined that the paint is a latex based paint. If no paint residue appears on the rag, it is determined that the paint is an oil based paint. While this method is effective, the denatured alcohol can be spilled and different colored rags must be used for different colored paints. For example, if the painted surface to be tested is white and the painter uses a white rag for testing it can be difficult to see whether any paint has been removed.
- There is presently a need for a simple, disposable test kit that will provide clear test results regardless of the color of the paint to be tested. The test kit should not be prone to spillage but should be economical and easy to use.
- The present invention, as summarized and described in detail below, provides a solution to the above noted problems that is simple, safe, economical and effective.
- According to the present invention, a test kit for testing paint on a painted surface is provided. The test kit includes a housing having an opening at one end. A liquid test reagent is contained within the housing. A swab is disposed in the opening of the housing substantially blocking the opening. A cap is removably secured to the housing to cover the swab when placed on the housing. The cap may be removed from the housing to reveal the swab. The test kit is used by removing the cap from the housing and rubbing the swab on the painted surface to test the composition of the surface.
- According to one aspect of the invention, the swab preferably has at least two contrasting colored portions that form part of a single surface of the swab. The two contrasting colored portions may be different colors but most preferably are green and white. The swab may be formed in two separate portions or may be formed of a single portion that is dyed or colored at the end surface.
- According to another aspect of the invention, the liquid test reagent is denatured alcohol. The denatured alcohol is preferably retained in a breakable glass vial until the test kit is ready to be used.
- According to another aspect of the invention, the housing and cap are generally cylindrical in shape. The swab may also be a cylindrical member having a first semi-cylindrical portion formed of one color felt material and a second semi-cylindrical portion formed of a second contrasting color of felt.
- These and other advantages and features of the invention will be better understood in view of the attached drawings and the following detailed description of a preferred embodiment of the paint test kit of the present invention.
- FIG. 1 is a perspective view of the paint test kit of the present invention.
- FIG. 2 is a cross-sectional view taken a long the line2-2 in FIG. 1.
- FIG. 3 is a cross-sectional view taken along the line3-3 in FIG. 1.
- FIG. 4 is a end view of an alternative embodiment of a swab used in the present invention.
- FIG. 5 is a perspective view of an alternative embodiment of the present invention.
- Referring now to FIGS. 1 and 2, a
test kit 10 is illustrated. Thetest kit 10 includes ahousing 12 formed of a rigid, flexible, plastic material that is cylindrical in shape and acap 14 has anopening 16 formed at one end. Aswab 18 formed of a relatively rigid absorbent felt material that is received in the opening 16 in a substantially sealing relationship so that it blocks the opening 16. A frangible, or breakable,glass vial 20 shown in FIG. 2 is retained in thehousing 12. Thevial 20 holds atest reagent 22, such a denatured alcohol, until a force is applied to thehousing 12 that causes thevial 20 to break. When thevial 20 breaks, thehousing 12 is held with its opening 16 in a downwardly orientation so that thetest reagent 22 will flow to theswab 18 wetting theswab 18 with thetest reagent 22. - A
cap 14 is preferably provided to keep theswab 18 clean until the test kit is ready to be used. The cap is also provided to inhibit spilling of thetest reagent 22 from thehousing 10 through theopening 16 when thevial 20 is broken. Thecap 14 is preferably formed of a cardboard material in a generally cylindrical shape. - The
swab 18 is preferably formed of a relatively hard, or stiff, felt material that is absorbent to allow the test reagent to be absorbed and retained in theswab 18. The felt material is preferably formed in twoseparate portions - Alternatively, a
swab 30 could be formed in a single piece and be provided with a ink ordye 32 that would provide contrasting portions on an end surface of the swab. - Referring now to FIG. 5, an alternative embodiment of the present invention is shown wherein the test kit will be formed of a
pre-impregnated felt swab 34 that is substantially contained within ahousing 36 formed of an impermeable plastic material that is not adversely affected by the denatured alcohol contained on theswab 34. The test kit would also include a cap such ascap 14 shown in the embodiment of FIG. 1 that would be received on the end of thehousing 36 in a sealing relationship. In the embodiment of FIG. 5, it is not necessary to break a frangible vial to release the test reagent and the test kit may be simply used by removing the cap and wiping the end of theswab 34 on the surface to be tested. Theswab 34 is preferably formed in two parts with adark felt section 38 and a white feltportion 40. - The preceding description is of the best mode of the invention. It will be readily appreciated by one of ordinary skill in the art that the present invention may be modified and various alternatives may be utilized in practicing the present invention.
Claims (3)
1. A test kid for testing paint on a painted surface comprising:
a flexible cylindrical plastic housing having an opening at one end;
a frangible vial disposed within the housing, said vial containing a liquid solvent;
a swab disposed in the opening of the housing and substantially blocking the opening; and
a cylindrical cap removably secured to the housing to cover the swab when said vial is broken to dispense the test reagent onto the swab, said cap being removed from the housing after the vial is broken to permit the swab to be rubbed on the painted surface to test the composition of the surface.
2. The test kid of wherein the cap is formed of cardboard.
claim 1
3. The test kit of wherein the vial is formed of glass.
claim 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/795,888 US20010006609A1 (en) | 1998-09-22 | 2001-02-28 | Paint test apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/158,689 US6214291B1 (en) | 1998-09-22 | 1998-09-22 | Paint test apparatus |
US09/795,888 US20010006609A1 (en) | 1998-09-22 | 2001-02-28 | Paint test apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/158,689 Continuation US6214291B1 (en) | 1998-09-22 | 1998-09-22 | Paint test apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US20010006609A1 true US20010006609A1 (en) | 2001-07-05 |
Family
ID=22569264
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/158,689 Expired - Fee Related US6214291B1 (en) | 1998-09-22 | 1998-09-22 | Paint test apparatus |
US09/795,888 Abandoned US20010006609A1 (en) | 1998-09-22 | 2001-02-28 | Paint test apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/158,689 Expired - Fee Related US6214291B1 (en) | 1998-09-22 | 1998-09-22 | Paint test apparatus |
Country Status (1)
Country | Link |
---|---|
US (2) | US6214291B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007091987A2 (en) * | 2004-11-17 | 2007-08-16 | The Regents Of The University Of California | Colorimetric chemical analysis sampler for the presence of explosives |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19909891C1 (en) * | 1999-03-06 | 2001-01-11 | Draeger Sicherheitstech Gmbh | Immunoassay device useful for collecting and analyzing allergens or bodily secretions comprises a housing with an elevated portion having a central opening containing a swab stick for receiving a sample and an eluent |
US20060110284A1 (en) * | 2004-11-24 | 2006-05-25 | Martin John G | Paint tester |
US20060233664A1 (en) * | 2004-11-24 | 2006-10-19 | Martin John G | Paint testing apparatus |
EP1877790A4 (en) * | 2005-04-07 | 2009-04-01 | Rapid Medical Diagnostics Inc | Device and methods for detecting an analyte in a sample |
CA152180S (en) * | 2013-02-12 | 2014-08-29 | Sulzer Mixpac Ag | Analytical apparatus for drug testing |
IL232696B (en) * | 2014-05-19 | 2018-08-30 | Technion Res & Dev Foundation | Composition and method for detection of molecules of interest |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3446596A (en) * | 1965-04-02 | 1969-05-27 | Mallinckrodt Chemical Works | Analytical package and method |
US5039618A (en) | 1989-02-02 | 1991-08-13 | Hybrivet Systems, Inc. | Test swab cartridge type device and method for detecting lead and cadmium |
US5364792A (en) | 1989-02-02 | 1994-11-15 | Hybrivet Systems, Inc. | Test swab and method of making and using same |
US5550061A (en) | 1989-02-02 | 1996-08-27 | Hybrivet Systems, Inc. | Test swab and method of using same |
US5558835A (en) | 1994-05-09 | 1996-09-24 | Universal Synergetics, Inc. | Lead test dauber |
US5492835A (en) * | 1994-07-13 | 1996-02-20 | Gerald J. Churchill | Swab identification testing device and method |
-
1998
- 1998-09-22 US US09/158,689 patent/US6214291B1/en not_active Expired - Fee Related
-
2001
- 2001-02-28 US US09/795,888 patent/US20010006609A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007091987A2 (en) * | 2004-11-17 | 2007-08-16 | The Regents Of The University Of California | Colorimetric chemical analysis sampler for the presence of explosives |
WO2007091987A3 (en) * | 2004-11-17 | 2007-11-01 | Univ California | Colorimetric chemical analysis sampler for the presence of explosives |
Also Published As
Publication number | Publication date |
---|---|
US6214291B1 (en) | 2001-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |