An apparatus for isolating an underground piping system from dispensers having a filter assembly. The isolation apparatus includes a seal member and a securing member which replace an in-line filter assembly. The seal member has a similar cross-sectional shape of the filter with a pair of inner and outer seals. The securing member is receivable on a nipple adapter that the filter assembly was received on and abuts the back portion of the seal member to engage the seals against an outlet conduit of the underground piping system.
A multi-wire conduit dam consisting of a molded strip of closed cell sponge rubber or equivalent that is shaped like a timing belt having recesses on at least one side with the recessed surface coated with adhesive or double sided adhesive tape after wires are placed in the recesses. The strip is then rolled together to form a cylindrical dam which may then be installed in an appropriate conduit.
William J. Gerstenmaier - Salisbury MD Richard G. Bisker - Salisbury MD
Assignee:
Dresser Industries, Inc. - Dallas TX
International Classification:
B67D 512
US Classification:
222 75
Abstract:
A nozzle boot for a fuel dispenser in which the nozzle support hook is adjustably settable between a first position for accommodating a standard size dispenser nozzle and a second position for accommodating a larger size dispenser nozzle utilized for recovering fuel vapor while fuel is being dispensed. For electrically actuating the dispenser to enable fuel to be dispensed through the nozzle, the nozzle support is slidably displaceable for operating a linkage mechanism connected to the operating switch.