초록 ▼

A method and apparatus for converting a fluid storage tank susceptible of leakage when a closure cap is improperly applied to a filler spout for said tank. The method comprises replacing the closure cap with an adapter constructed and arranged with securing means sufficiently identical to securing m

A method and apparatus for converting a fluid storage tank susceptible of leakage when a closure cap is improperly applied to a filler spout for said tank. The method comprises replacing the closure cap with an adapter constructed and arranged with securing means sufficiently identical to securing means provided on said closure cap to interfit with securing means provided on said closure spout. The adapter has a one-way valve at the inner end of an adapter pipe, and an enlarged collar beyond the outer end of said adapter pipe that interfits with the filler spout in a manner in which said closure cap previously interfit therewith. The enlarged collar has securing means sufficiently similar to securing means on said closure spout to secure said closure cap to said enlarged collar to prevent entry of debris into said adapter when said adapter has been fixed to said filler spout.

대표청구항 ▼

A device to prevent loss of fluid from a fluid storage tank having a filler spout extending downward into said tank due to improper closure of a closure cap for said filler spout, said device comprising an adapter having an adapter pipe constructed and arranged of smaller cross-section than said fil

A device to prevent loss of fluid from a fluid storage tank having a filler spout extending downward into said tank due to improper closure of a closure cap for said filler spout, said device comprising an adapter having an adapter pipe constructed and arranged of smaller cross-section than said filler spout to be inserted within said filler spout and a one-way valve at the inner end portion of said adapter pipe, characterized by an enlarged collar thicker than said adapter pipe and extending axially outward therefrom, said adapter being provided with securing means sufficiently similar to securing means provided on said closure cap to secure said enlarged collar to cooperating securing means fixed to said filler spout in non-leaky relation thereto in the same manner as said closure cap would be secured directly to said filler spout in the absence of said adapter, whereby said adapter replaces said cap in retrofit relation to said tank.