Patent EP0415580A2 successfully refreshed from Google Patents.
EP0415580A2
Expired / Lapsed
EP
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Particulate monitoring tape
Assignee: 3M Co
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Filing: 1990-08-08
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Granted: —
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Expires: 2010-08-08
Abstract
Abstract A tape for sampling a surface to determine the amount of particulate matter which has settled thereon. The tape is constructed of a polymeric film backing and a smooth, pigmented adhesive coating. A grid pattern is printed directly on the outer surface of the adhesive coating. In this manner, the tape may be applied directly to the surface to be sampled, and particulates will adhere to the outer surface of the adhesive coating. The particulate level may then be determined according to the average number of particulates in a given square formed by the grid pattern.
Inventors
- 👤 Leroy J. C/O Minnesota Mining And Herauf
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 22:28
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N2001/028; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1462; Y10T428/1486; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/28
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
41 words
An article for sampling particulates on a surface, comprising: film backing means; and an adhesive coating affixed to said film backing means, said adhesive coating having a grid pattern printed therein for dividing said adhesive coating into areas of predetermined size.
Claim 2
Dependent Claim
41 words
An article for sampling particulates on a surface, comprising: film backing means; and an adhesive coating affixed to said film backing means, said adhesive coating having a grid pattern printed therein for dividing said adhesive coating into areas of predetermined size.
Claim 3
Dependent Claim
25 words
The article of Claim 1 wherein said adhesive coating is pigmented and has an outer surface, said grid pattern being printed on said outer surface.
Claim 4
Dependent Claim
26 words
The article of Claim 1 wherein said adhesive coating is fabricated from a pressure sensitive adhesive having an adhesion of not more than about 25 oz./in.
Claim 5
Dependent Claim
20 words
The article of Claim 1 wherein said film backing means is fabricated from a sheet of dimensionally stable polymeric material.
Claim 6
Dependent Claim
21 words
The article of Claim 2 wherein said adhesive coating includes a white pigment, and said grid pattern is in black ink.
Claim 7
Dependent Claim
21 words
The article of Claim 2 wherein said adhesive coating includes a black pigment, and said grid pattern is in white ink.
Claim 8
Dependent Claim
14 words
The article of Claim 2 wherein said pressure sensitive adhesive is an acrylic adhesive.
Claim 9
Dependent Claim
11 words
The article of Claim 2 wherein said polymeric material is polyester.
Claim 10
Dependent Claim
68 words
A tape for monitoring the level of airborne particulates which settle on a surface, comprising: a polymeric film backing; a pigmented adhesive coating affixed to said polymeric film backing, said adhesive coating having an outer surface; and a grid pattern printed on said outer surface of said adhesive coating, said grid pattern including a plurality of orthogonal lines having a color which contrasts with said pigmented adhesive coating.
Claim 11
Dependent Claim
68 words
A tape for monitoring the level of airborne particulates which settle on a surface, comprising: a polymeric film backing; a pigmented adhesive coating affixed to said polymeric film backing, said adhesive coating having an outer surface; and a grid pattern printed on said outer surface of said adhesive coating, said grid pattern including a plurality of orthogonal lines having a color which contrasts with said pigmented adhesive coating.
Claim 12
Independent Claim
65 words
A method of manufacturing a tape for monitoring the level of airborne particulates which settle on a surface, comprising the steps of: obtaining a sheet of polymeric material; coating said polymeric sheet with a pigmented adhesive; printing a grid pattern on said adhesive coating, said grid pattern having a color which contrasts with said pigmented adhesive; and cutting said adhesive coated polymeric sheet into strips.
Claim 13
Independent Claim
65 words
A method of manufacturing a tape for monitoring the level of airborne particulates which settle on a surface, comprising the steps of: obtaining a sheet of polymeric material; coating said polymeric sheet with a pigmented adhesive; printing a grid pattern on said adhesive coating, said grid pattern having a color which contrasts with said pigmented adhesive; and cutting said adhesive coated polymeric sheet into strips.
Claim 14
Independent Claim
92 words
A method of sampling a surface to determine the amount of particulate matter which has settled thereon, comprising the steps of: obtaining a strip of tape having an adhesive coating, said adhesive coating further having a grid pattern printed thereon, said grid pattern forming squares of known area; placing said tape on the sampling surface, with said adhesive coating adjacent thereto, whereby particulates on the sampling surface are transferred to said adhesive coating; removing said tape; and counting the number of particulates lying in several of said squares of said grid pattern.
Claim 15
Independent Claim
92 words
A method of sampling a surface to determine the amount of particulate matter which has settled thereon, comprising the steps of: obtaining a strip of tape having an adhesive coating, said adhesive coating further having a grid pattern printed thereon, said grid pattern forming squares of known area; placing said tape on the sampling surface, with said adhesive coating adjacent thereto, whereby particulates on the sampling surface are transferred to said adhesive coating; removing said tape; and counting the number of particulates lying in several of said squares of said grid pattern.
References Cited (Backward Citations)
No citation records indexed.
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