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DOSING APPARATUS

  • US 3,715,058 A
  • Filed: 03/03/1971
  • Issued: 02/06/1973
  • Est. Priority Date: 04/04/1970
  • Status: Expired due to Term
First Claim
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1. A liquid dosing apparatus comprising a container for storing the liquid to be dosed, a liquid-tight seal on at least one side of said container, a cylindrical pin arranged for axial movement within said cylinder and through said liquid-tight seal, means connected to said pin at an end of the container remote from said liquid-tight seal for causing said axial movement of said pin, means connected to said container for supplying the liquid to be dosed thereto, a recess situated on a side of said cylindrical pin for accommodating therein a predetermined quantity of liquid when said pin has been moved to its fully lifted position so that said recess will be located within the storage container and for delivering said predetermined quantity of liquid to an outlet pipe connected to said container when said cylindrical pin is in a fully depressed position so that said recess will have been moved outside said container and into said outlet pipe through said liquid-tight seal, a member having approximately the same shape as said recess carried within said storage container and resiliently secured to said container so that when said cylindrical pin is in its fully lifted position and located within said container said member will be engaged within said recess so as to displace any matter therefrom.

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