Apparatus and method for cleaning recorded discs
AssigneeRCA Corporation
InventorsBarry N. Stevens, Lester R. Aldridge
Life of this patent
Estimating the term…
Abstract
In an apparatus for cleaning recorded discs wherein the discs are immersed into and removed from a cleaning liquid in a container, a flow of the liquid is provided substantially parallel to and slightly below the level of the liquid in the container across the area of the surface of the liquid through which the discs pass as they are removed from the liquid. The flow is provided by a plurality of nozzles located in the container slightly below the level of the liquid through which relatively clean liquid from the container is pumped. This flow is at a rate such as to remove from the area of the surface through which the discs are to pass contaminants which may float to the surface of the liquid.
Claims11
In an apparatus for cleaning recorded discs which includes a container having a cleaning liquid therein into which the discs are inserted and removed, an inlet at one end of the container for admitting the cleaning liquid into the container and an overflow outlet at the other end of the container so as to provide a flow of the cleaning liquid from the inlet to the overflow outlet, and means for moving the discs through the liquid in the container toward said one end of the container, the improvement comprising
- means for directing an additional flow of the liquid toward said other end of the container along a path substantially parallel to and slightly below the level of the liquid in the container across the area of the surface of the liquid through which the discs pass when removed from the liquid.
In a method for cleaning a recorded disc in which the disc is submerged in and removed from a cleaning liquid in a container with the cleaning liquid being admitted into the container at one end thereof and overflowing out of the container at the other end thereof so that the cleaning liquid flows from the one end of the container to the other end, and in which the discs are moved through the liquid in the container toward said one end of the container, the improvement comprising
- providing an additional flow of the liquid along a path substantially parallel to and slightly below the surface of the cleaning liquid in a direction toward the other end of the container and across the area of the cleaning liquid through which the disc passes as it is removed from the cleaning liquid.
In a method for cleaning recorded discs wherein the discs are immersed into and removed from cleaning liquid in a series of a plurality of containers in succession with the cleaning liquid flowing through each container and from one container to the next in a direction opposite to the movement of the discs so that the cleaning liquid in each container is cleaner than that in the previous container, the improvement comprising
- in each of the containers causing an additional flow of liquid in a direction opposite to the movement of the discs and substantially parallel to and slightly below the level of the cleaning liquid in the container across the area of the cleaning liquid through which the discs pass as they are removed from the cleaning liquid so as to remove from said area any contaminating material which may float to the surface of the cleaning liquid.
Dependencies are inferred from the claim text.