Manual control apparatus
Номер патента: CA1139196A
Опубликовано: 11-01-1983
Автор(ы): Henry R. Killian
Принадлежит: Keystone International Inc
Опубликовано: 11-01-1983
Автор(ы): Henry R. Killian
Принадлежит: Keystone International Inc
Реферат: ABSTRACT OF THE DISCLOSURE A manual override apparatus for use with normally, automatically, powered driving assemblies such as valve actuators, the override apparatus having a body with a bore therethrough, a housing secured to the body and having an axial bore which registers with the bore in the body, a rotatable split drive nut mounted in the housing, a drive screw extending into the registering bores in the body and the housing and mounted for axial movement therein, a camming system for selectively engaging and disengaging the drive nut with the drive screw whereby en-gagement of the drive screw with the drive nut and rotation of the drive nut causes axial movement of the drive screw, and a biasing assembly operatively connected to the split drive nut which exerts a biasing engagement force on the drive nut when a given magnitude of resistance to engagement is encountered.
Device to switch linear drives to manual control
Номер патента: RU2523458C2. Автор: Дуглас Пол ГЕТМАНН. Владелец: ФИШЕР КОНТРОЛЗ ИНТЕРНЕШНЕЛ ЛЛС. Дата публикации: 2014-07-20.