Anti-siphon frost-proof water hydrant

Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

137302, 137360, 137512, 137613, 13762526, 137801, F16K 2402

Patent

active

050296035

ABSTRACT:
A water hydrant defines an elongated flow passage having a water inlet and an air inlet, and a laterally extending water outlet spout disposed therebetween to define an outlet. An elongated rotatable stem is reciprocated within the flow passage, and terminates in an exterior handle. A water inlet valve is connected to the stem for control of flow from the water inlet into the passage and an air valve is connected to the stem to control inflow of air and preclude outflow of water through the air inlet. A first check valve in the spout precludes backflow of water into the passage, movement of the air valve opening the first check valve during operation of the handle. A second check valve in the spout downsteam of the first check valve precludes backflow of water into the spout. A drain orifice, open to the atmosphere, extends through the spout between the check valves.

REFERENCES:
patent: 1647873 (1927-11-01), Lockwood
patent: 2810395 (1957-10-01), Simmons
patent: 2952270 (1960-09-01), Fulton et al.
patent: 3106935 (1963-10-01), Gatzke
patent: 3424189 (1969-01-01), Woodford
patent: 3459443 (1969-08-01), Butters et al.
patent: 3929150 (1975-12-01), Flinner et al.
patent: 3952770 (1976-04-01), Botnick
patent: 4231387 (1980-11-01), Dixon
patent: 4284097 (1981-08-01), Becker et al.
patent: 4316481 (1982-02-01), Fillman
patent: 4475570 (1984-10-01), Pike et al.
patent: 4712575 (1987-12-01), Lair et al.
patent: 4909270 (1990-03-01), Enterante, Sr. et al.
"Frost-Proof Automatic Draining Wall Hydrants", Catalog No. $-FH/FHV-1, Watts Regulator Company.
"Series 7", Catalog #ES7-10, Watts Regulator Company.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Anti-siphon frost-proof water hydrant does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anti-siphon frost-proof water hydrant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-siphon frost-proof water hydrant will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-610598

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.