Backflow prevention system
OwnerAnthony P. Lafalceinventor
Life of this patent
Estimating the term…
Abstract
A backflow prevention system that helps prevent contamination of potable water distribution systems from backflow at fire hydrant connections.
Claims36
A fire hydrant system, relating to protecting the purity of potable water systems from contamination from frangible-barrel-fire-hydrant use, comprising, in combination:
- a) at least one frangible barrel fire hydrant comprising
- i) at least one upper barrel body
- ii) at least one lower barrel body,
- iii) at least one frangible plane between said at least one upper barrel body and said at least one lower barrel body,
- iv) at least one water outlet chamber, extending from said at least one upper barrel body, and
- v) at least one water entry into said at least one water outlet chamber from said at least one upper barrel body;
- b) wherein said at least one upper barrel body and said at least one water outlet chamber together comprise exactly one unitary-construction housing;
- c) at least one water-flowable channel extending from within said at least one upper barrel body, through said at least one water entry, and through said at least one water outlet chamber;
- and
- d) at least one backflow preventer situate within said exactly one unitary-construction housing;
- e) wherein said at least one backflow preventer is adapted to assist prevention of backflow of water through said at least one entry.
A fire hydrant system, relating to protecting the purity of potable water systems from contamination from frangible-barrel-fire-hydrant use, comprising, in combination:
- a) at least one frangible barrel fire hydrant comprising
- i) at least one upper barrel body
- ii) at least one lower barrel body,
- iii) at least one frangible plane between said at least one upper barrel body and said at least one lower barrel body,
- iv) at least one water outlet chamber, extending from said at least one upper barrel body, and
- b) at least one water entry into said at least one water outlet chamber from said at least one upper barrel body;
- c) at least one water-flowable channel extending from within said at least one upper barrel body, through said at least one water entry, and through said at least one water outlet chamber;
- and
- d) at least one backflow preventer;
- e) wherein said at least one backflow preventer is adapted to assist prevention of backflow of water through said at least one entry;
- and
- f) wherein said at least one backflow preventer is located substantially adjacent said at least one water entry.
A fire hydrant system, relating to protecting the purity of potable water systems from contamination from use of at least one frangible barrel fire hydrant having at least one upper barrel body, at least one lower barrel body, and at least one frangible plane between the at least one upper barrel body and the at least one lower barrel body, said fire hydrant system comprising, in combination:
- a) the at least one upper barrel body;
- b) at least one water outlet chamber, extending from said at least one upper barrel body, and
- c) at least one water entry into said at least one water outlet chamber from said at least one upper barrel body;
- d) wherein said at least one upper barrel body and said at least one water outlet chamber together comprise exactly one unitary-construction housing;
- e) at least one water-flowable channel extending from within said at least one upper barrel body, through said at least one water entry, and through said at least one water outlet chamber;
- and
- f) at least one backflow preventer situate within said exactly one unitary-construction housing;
- g) wherein said at least one backflow preventer is adapted to assist prevention of backflow of water through said at least one entry.
A fire hydrant system, relating to protecting the purity of potable water systems from contamination from use of at least one frangible barrel fire hydrant having at least one upper barrel body, at least one lower barrel body, and at least one frangible plane between the at least one upper barrel body and the at least one lower barrel body, said fire hydrant system comprising, in combination:
- a) the at least one upper barrel body;
- b) at least one water outlet chamber, extending from said at least one upper barrel body, and
- c) at least one water entry into said at least one water outlet chamber from said at least one upper barrel body;
- d) wherein said at least one upper barrel body and said at least one water outlet chamber together comprise exactly one unitary-construction housing;
- e) at least one water-flowable channel extending from within said at least one upper barrel body, through said at least one water entry, and through said at least one water outlet chamber;
- and
- f) at least one backflow preventer situate within said exactly one unitary-construction housing;
- g) wherein said at least one backflow preventer is adapted to assist prevention of backflow of water through said at least one entry.
A fire hydrant system, relating to protecting the purity of potable water systems from contamination from use of at least one frangible barrel fire hydrant having at least one upper barrel body, at least one lower barrel body, and at least one frangible plane between the at least one upper barrel body and the at least one lower barrel body, said fire hydrant system comprising, in combination:
- a) the at least one upper barrel body;
- b) at least one water outlet chamber, extending from said at least one upper barrel body, and
- c) at least one water entry into said at least one water outlet chamber from said at least one upper barrel body;
- d) wherein said at least one upper barrel body and said at least one water outlet chamber together comprise at least one upper barrel structure;
- e) at least one water-flowable channel extending from within said at least one upper barrel body, through said at least one water entry, and through said at least one water outlet chamber;
- and
- f) at least one backflow preventer situate within said at least one upper barrel structure;
- g) wherein said at least one backflow preventer is adapted to assist prevention of backflow of water through said at least one entry.
At least one method, relating to protecting the purity of potable water systems from contamination from use of at least one frangible barrel fire hydrant having at least one upper barrel body, at least one lower barrel body, and at least one frangible plane between the at least one upper barrel body and the at least one lower barrel body, said at least one method comprising, in combination, the steps of:
- a) providing for identification of needs of at least one community potable-water system desiring fire-hydrant backflow-prevention protection;
- b) providing for manufacture of at least one upper barrel structure comprising
- i) at least one upper barrel body;
- ii) at least one water outlet chamber, extending from such at least one upper barrel body,
- iii) at least one water entry into such at least one water outlet chamber from such at least one upper barrel body,
- iv) at least one water-flowable channel extending from within such at least one upper barrel body, through such at least one water entry, and through such at least one water outlet chamber, and
- v) at least one backflow preventer situate within such at least one upper barrel structure;
- vi) wherein such at least one backflow preventer is adapted to assist prevention of backflow of water through such at least one entry;
- and
- c) providing for delivery of such at least one upper barrel structure, installable on the at least one lower barrel body, to such at least one community potable-water system.
Dependencies are inferred from the claim text.