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Device and method for the chemical testing and microscopic examination of liquid specimens

  • US 4,308,028 A
  • Filed: 04/14/1980
  • Issued: 12/29/1981
  • Est. Priority Date: 04/14/1980
  • Status: Expired due to Term
First Claim
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1. A device for facilitating the microscopic viewing of liquid specimens, said device comprising:

  • an elongated strip having a sampling and viewing chamber at the lower extremity thereof, said chamber being formed by two generally parallel transparent flat members which are spaced close enough together to be filled by capillary action and said chamber being sufficiently open to permit it to be filled when immersed in a liquid;

    a strip supporting member having an opening formed therein for insertion of the lower extremity of said elongated strip, said opening being small enough so that the strip supporting member is firmly held by said strip after the strip is inserted therein; and

    test tube means having means for limiting the downward movement of the strip supporting member formed near the bottom thereof, said test tube means being large enough to permit the insertion of the strip and strip supporting member therein and said means for limiting being large enough to permit the insertion of the lower end of the strip but being configured to prevent the passage of the strip supporting member past the shoulder and instead to hold the strip supporting member thereon and to form a generally waterproof barrier between the inner wall of the test tube means and the strip supporting member, whereby liquid located below said strip supporting member will be held in said test tube means when said strip supporting member is held in its lowermost position in said test tube means; and

    means preventing liquid flow into said sampling and viewing chamber until said strip supporting member contacts said means for limiting the downward movement.

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