Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fire hydrant, fire hydrant stem, and fire hydrant upper stem assembly
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.
Fire hydrant, fire hydrant stem, and fire hydrant upper stem assembly
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.
Fire hydrant, fire hydrant stem, and fire hydrant upper stem assembly
KENNEDY PAUL (Autor:in)
07.04.2020
Patent
Elektronische Ressource
Englisch
FIRE HYDRANT, FIRE HYDRANT VALVE, AND FIRE HYDRANT APPARATUS PROVIDED WITH IT
| Europäisches Patentamt | 2019