Isolation apparatus for a dispenser delivery system
AssigneeDresser Industries, Inc.
InventorRichard G. Bisker
Life of this patent
Estimating the term…
Abstract
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.
Claims6
An apparatus for isolating fuel from a fuel dispenser of a fuel dispensing system having a fuel reservoir;
- pump means disposed in communication with said reservoir for pumping fuel out of said reservoir;
- a fuel dispenser located remote from said reservoir, including fuel delivery means;
- conduit means connecting said pump means and delivery means in fluid communication;
- a filter assembly connected to said conduit means between said fuel reservoir and said fuel dispenser, wherein said conduit means is constructed and arranged so that fuel from said fuel reservoir enters an outlet, passes through said filter assembly before exiting through an inlet to said delivery means, the isolation apparatus comprises:
- A. a seal member having a first seal and a second seal on a top portion of said seal member for replacing said filter assembly to block said inlet to said delivery means;
- and
- B. means for securing said seal member to said inlet of said dispenser.
Dependencies are inferred from the claim text.