Sperm filter trap having compressed glass wool filter material

Details Sperm filter trap having compressed glass wool filter material Sperm filter trap having compressed glass wool filter material

1994-12-23

1996-11-19

Drodge, Joseph W.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210446, 210451, 2105101, 422101, 435806, 436906, B01D 3530, B01D 3920

Patent

active

055759149

ABSTRACT:
A filter trap (10) for removing spermatozoa of relatively lower viability from a fluid containing both higher and lower viability spermatozoa includes a conduit (14) which compresses silica glass wool (16) to a density adequate to prevent the passage therethrough of lower viability spermatozoa and undesired extraneous materials, while permitting the passage therethrough of higher viability spermatozoa. The conduit (14) is preferably formed by a nested, locking pair of tubes (18) and (20) having respective downstream ends (22) and (24) which compress the glass wool (16) between them. The invention is particularly advantageous over the prior art in that it assures fixing the density of the glass wool (16) at a useful value, thereby preventing inadequate separation or inadequate flow of the fluid, while avoiding the training costs previously encountered in setting the density of the glass wool manually.

REFERENCES:
patent: 2271829 (1942-02-01), Powers
patent: 3448041 (1969-06-01), Swank
patent: 3593854 (1970-07-01), Swank
patent: 3693804 (1972-09-01), Grover
patent: 3909363 (1975-09-01), Bucalo
patent: 4116845 (1978-09-01), Swank

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