Hydraulic and earth engineering – Fluid control – treatment – or containment
Patent
1982-05-12
1989-06-13
Reese, Randolph A.
Hydraulic and earth engineering
Fluid control, treatment, or containment
405270, 405303, 52 20, 404 2, 404 25, 210163, 4293, E02B 316, E02D 2914, A47K 114
Patent
active
048387320
ABSTRACT:
An elastomeric sealing device to prevent ingress of surface fluids into holes, principally drains which are characterized by non-watertight covers or grilles with either regular or irregular topographic boundaries. The device comprises a three-part construction, including a top film, a core elastomer having minimal shear strength, and a bottom film. When in use, the device conforms to contour of adjacent hole covering device and fills existing crevices and voids, thereby providing an efficient seal. When removed from hole, device recovers neutral shape thereby being suitable for re-use on same or different hole.
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Clark Earl A.
Clark Stephen E.
Reese Randolph A.
Ricci John A.
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