Patent number: 10612218

Fire hydrant, fire hydrant stem, and fire hydrant upper stem assembly

Original Assignee: Kennedy Valve Company

Field of technology: Industrial Machinery and Processes

Patent granted on: Tue, 07 Apr 2020

Patent drawing


A fire hydrant stem includes a shaft having a center axis, a first end portion, a first end, and a second end. The first end portion extends axially a length from the first end, has external threads, and defines an internal cavity open through the first end. The second end is configured to engage a fire hydrant main valve operating assembly. A fire hydrant upper stem assembly includes a fire hydrant stem and a spring element. The fire hydrant stem defines an internal cavity, and the spring element is in the internal cavity.