Sample applicator

• US 4,334,879 A
• Filed: 05/02/1980
• Issued: 06/15/1982
• Est. Priority Date: 05/04/1979
• Status: Expired due to Term

• Current Assignee: Olympus Optical Company Ltd. (Olympus Corporation)
• Original Assignee: Olympus Optical Company Ltd. (Olympus Corporation)
• Inventors: Fujimori, Ryo
• Primary Examiner(s): Serwin, Ronald
• Application Number:
  US06/146,182
• Time in Patent Office: 774 Days
• Field of Search: 422/99, 422/100, 422/104, 422/56, 422/57, 422/58, 23/230 R, 23/230 B, 73/421 R
• US Class Current: 436/174
• CPC Class Codes: B01L 2300/069 Absorbents; Gels to retain a fluid
• CPC Class Codes: B01L 3/02 Burettes; Pipettes
• CPC Class Codes: B01L 3/0244 using pins
• CPC Class Codes: G01N 2001/149 Capillaries; Sponges
• CPC Class Codes: G01N 2035/1037 Using surface tension, e.g. pins or wires
• CPC Class Codes: G01N 27/44743 Introducing samples
• CPC Class Codes: G01N 35/1095 for supplying the samples to flow-through analysers for a specific analyser see relevant groups, e.g. under G01N15/00, G01N21/00, G01N27/00, G01N30/00, H01J49/00
• CPC Class Codes: Y10T 436/25 including sample preparation

Abstract

A sample applicator comprising a holder and an applicator blade of porous material formed as a rectangular plate and mounted to an end of holder, the sample applicator being arranged to apply a sample onto a film by making the applicator blade absorb the sample and, then, pushing the applicator blade onto the film.

Claims

1. A new use for a blade of porous, liquid-absorptive material having a straight edge protruding at one end of a holder in which the blade of porous material is mounted,

said new use comprising:

dipping the protruding blade edge into a liquid that is to be subjected to electrophoresis, in order to absorb a quantity of said liquid therein; and

pushing the protruding blade edge against an electrically-energizable film sufficiently to express from the blade onto the film a fine, uniform, straight line sample of said liquid.