Color comparison device having a bulged insertion groove for holding a test stick in a flexed condition

• US 4,984,895 A
• Filed: 03/13/1989
• Issued: 01/15/1991
• Est. Priority Date: 03/14/1988
• Status: Expired due to Term

• Current Assignee: Evenflo Company Incorporated (Goodbaby International Holdings Limited)
• Original Assignee: Omron Tateisi Electronics Co. (Omron Corporation)
• Inventors: Kobayashi, Toshiyuki, Ota, Hiroyuki, Makita, Shigeru
• Primary Examiner(s): Evans, F. L.
• Application Number:
  US07/322,427
• Time in Patent Office: 673 Days
• Field of Search: 356/42, 356/421, 356/422, 356/423, 356/424, 422/55, 422/56, 422/57, 422/58, 422/61
• US Class Current: 356/423
• CPC Class Codes: G01N 2021/0181 Memory or computer-assisted visual determination
• CPC Class Codes: G01N 21/293 with colour charts, graduated scales or turrets
• CPC Class Codes: G01N 21/8483 Investigating reagent band test-element handling not specific to a test method G01N33/4875; analytical elements specific to chemical analysis of biological material G01N33/52; autometer with reagent band G01N35/04

Abstract

A color comparison device comprises a casing unit having a comparison window for displaying a comparison color sample section mounted on a rotatable wheel and a test stick insertion groove portion formed in an upper surface of the casing unit at one end thereof and disposed generally centrally of the width of the casing unit, the insertion groove portion communicating with the comparison window so that a test stick inserted into the insertion groove portion overlies the comparison color sample section in the comparison window, the insertion groove portion having a bulged fixing section by which a test stick inserted in the insertion groove is held therein in a flexed condition.

Claims

1. A color comparison device comprising:

a casing unit having a comparison window for displaying a comparison color sample section mounted on a rotatable wheel wherein the wheel is rotatably fixed with a protruding display section of the casing unit;

a test stick insertion groove portion formed in an upper surface of said casing unit at one end portion thereof, said insertion groove portion communicating with said comparison window so that a reagent portion of a test stick inserted into said insertion groove portion overlies said comparison color sample section in said comparison window;

means for causing a test stick inserted into said insertion groove to be held in a flexed condition wherein said causing means comprises a bulged fixing section provided at said insertion groove and an inlet portion of said insertion groove portion, a test stick inserted into said insertion groove being held in a flexed condition by said bulged fixing section and said inlet portion of said insertion groove.