Animal husbandry – Entomological culture device – Egg treatment – production – or storage
Patent
1990-06-07
1991-04-09
Hirsch, Paul J.
Animal husbandry
Entomological culture device
Egg treatment, production, or storage
A01K 6300
Patent
active
050055224
ABSTRACT:
A cover for a rimmed animal or fish tank is provided with a frame having a plurality of fixed depending retaining clips and removable retaining clips. The removable retaining clips are provided with an inwardly directed shaped flange at its lower end adapted to engage the wall of the tank below the rim to cause the fixed retaining clips to be biased in resilient engagement with the tank wall to secure the cover on the tank by shoulders formed on the front and rear surfaces of the retaining clip.
REFERENCES:
patent: 3487935 (1970-01-01), Lovitz
patent: 3730138 (1973-05-01), Suchowski
patent: 3857366 (1974-12-01), Willinger
patent: 4272672 (1981-06-01), Goldman et al.
patent: 4576115 (1986-03-01), Gordon
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