Devices for recording test results, and test kits comprising them

• US 4,776,612 A
• Filed: 04/02/1987
• Issued: 10/11/1988
• Est. Priority Date: 04/03/1986
• Status: Expired due to Fees

• Current Assignee: Unilever Patent Holdings BV (Unilever PLC)
• Original Assignee: Unilever Patent Hall BV
• Inventors: Cox, Philip
• Primary Examiner(s): Bell, Paul A.
• Application Number:
  US07/033,364
• Time in Patent Office: 558 Days
• Field of Search: 116/200, 116/201, 283/1 A, 283/48 R, 356/243, 356/244, 422/58, 435/10, 435/11, 436/95
• US Class Current: 283/115
• CPC Class Codes: G01N 31/22 using chemical indicators G01N31/02 takes precedence

Abstract

A recording device for recording results of a series of chemical tests, each of said tests being adapted to produce a change of color or other visual texture of a test material, said recording device comprising:

(a) a recording surface which is capable of being marked by a user of said test,

(b) an array of recording zones on said recording surface, said zones comprising, for each of a respective series of occasions on which an example of said test is to be performed, a series of zones each to be associated with a respective possible outcome of said test on said occasion; and

(c) said device also carrying, for each said zone, a representation of a color or other visual texture of said test material corresponding to said respective possible outcome of said test.

Claims

1. A recording device for recording results of a series of chemical tests, each said test being adapted to produce a change of color or other visual appearance of a test material, said device comprising:

(a) a recording surface which is capable of being marked by a user of said test;

(b) an array of recording zones on said recording surface, one recording zone for each of a series of occasions on which a said test is to be performed, and each said recording zone including a series of outcome zones each associated with a possible outcome of said test on a said occasion, whereby a two-dimensional array of outcome zones is provided on said recording surface;

(c) for each recording zone, at or adjacent said outcome zones, a series of representations of colors or other visual appearances of said test material corresponding to each of the possible outcomes of which one is to be recorded in each said recording zone;

whereby, in use, when markings are made by a user on a said recording device, one marking for each of a series of tests carried out by the user, and one marking per recording zone at or adjacent the outcome zone associated with that representation of the test outcome which corresponds to the appearance of the test result obtained for recording, said markings yield a graph of the test results made up of said markings.

2. A device according to claim 1, wherein each said representation is constituted by a corresponding colour of said recording surface in each corresponding zone.

3. A device according to claim 2, wherein said array of zones comprises a two-dimensional array comprising columns of zones, each said column corresponding to a plural number of said possible outcomes of said test, and wherein said columns are arranged side by side to show rows of recording zones of similar colour.

4. A device according to claim 3, wherein said rows of recording zones are made with successively deeper colour in successive higher rows.

5. A device according to claim 4, wherein each column is associated with distinctive indicia.

6. The combination of a recording device according to claim 1, 2, 3, 4 or 5 with at least one test device adapted to provide test results showing colour or other visual appearance as represented in said recording device.