Two stage automatic shut off valve
Номер патента: CA2034755C
Опубликовано: 25-10-1994
Автор(ы): Bruce Johnson, Robert P. Whitney
Принадлежит: EBW Inc
Опубликовано: 25-10-1994
Автор(ы): Bruce Johnson, Robert P. Whitney
Принадлежит: EBW Inc
Реферат: TWO STAGE AUTOMATIC SHUT OFF VALVE ABSTRACT A shut off valve assembly for preventing overfilling of an underground fuel storage tank or other storage tanks where the incoming flow is not metered, utilizes a two stage valve closure, the first stage closure signaling the tank is nearly filled to capacity and the second stage closure subsequently completely stopping flow into the tank.
Drop tube assembly with shut-off valve and method for making
Номер патента: CA2083585C. Автор: Thomas R. Lindquist,Don K. Shackelford. Владелец: Guillotine Inc. Дата публикации: 1994-09-13.