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US 4,726,218 AGranted
Tank tightness test apparatus probe
AssigneeHeath Consultants Incorporated
InventorAllan S. Jacob
Life of this patent
Estimating the term…
Abstract
A thermal probe for use in a tightness testing apparatus for an underground storage tank provided with a fill pipe extending from ground level down to the tank, and including a mechanical compression, ring-shaped seal which sealingly engages the outer periphery of the access or fill pipe of an underground storage tank and expands to form a leak tight connection therewith.
Claims4
A thermal probe for use in a tightness testing apparatus for an underground storage tank provided with a fill pipe extending from ground level down to the tank, comprising:
- (a) a support member having an upper end and a lower end;
- (b) a suction tube, which is insertable loosely down through the fill pipe into the tank, and which has an upper end attached to the support member;
- (c) a discharge tube extending down through the support member from the upper end thereof and through the suction tube into the tank;
- (d) the suction tube extends through a clamp support member which is telescopically seated on the fill pipe and which carries a clamp means for sealingly securing the probe to a tank fill pipe;
- (e) the clamp member being spaced from the support member and detachably connected thereto by a carrier member;
- and,
- (f) said clamp means including a compression seal means for sealing engagement with the outer periphery of the fill pipe of the tank.
4 more elements
Dependencies are inferred from the claim text.