US 11,703,080 B2
Fire hydrant
Yanlong Li, Hixson, TN (US); Paul S. Gifford, Chattanooga, TN (US); and Walter Pierce Wojick, Lookout Mountain, GA (US)
Assigned to Mueller International, LLC, Atlanta, GA (US)
Filed by Mueller International, LLC, Atlanta, GA (US)
Filed on Apr. 14, 2022, as Appl. No. 17/720,887.
Application 17/720,887 is a division of application No. 16/109,934, filed on Aug. 23, 2018, granted, now 11,333,193.
Prior Publication US 2022/0325747 A1, Oct. 13, 2022
Int. Cl. F16C 17/04 (2006.01); E03B 9/04 (2006.01); F16C 33/20 (2006.01)
CPC F16C 17/04 (2013.01) [E03B 9/04 (2013.01); F16C 33/201 (2013.01); F16C 2202/50 (2013.01); F16C 2202/54 (2013.01); F16C 2208/60 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A fire hydrant comprising:
an upper barrel, the upper barrel being hollow and defining a cavity therein, the upper barrel defining at least one nozzle;
a bonnet system comprising a bonnet, the bonnet fastened to an upper end of the upper barrel, the bonnet being of a shape to encapsulate the upper barrel and defining a cavity therein;
a stem located within the cavity of the upper barrel, the stem arranged extending into the cavity of the barrel, the stem in mechanical connection with a valve;
an op nut mechanically coupled to the stem in arrangement to cause linear motion of the stem to operate the valve; and
at least one bearing system arranged between the op nut and the bonnet system, each bearing system comprising at least one bearing, wherein each bearing is constructed of nylon MDS,
wherein each bearing comprises a bearing system, each bearing system comprising at least two bearings.