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US 8,282,070 B2Granted
Apparatus and methods for manual override operation of a linear actuator
AssigneeFisher Controls International LLC
InventorLonnie Oscar Davies, Jr.
Life of this patent
Estimating the term…
Abstract
Apparatus and methods for manual override operation of a linear actuator are described. An example apparatus includes a base to be mounted to an actuator. A drive member is operatively coupled to the base and selectively engagable to a stem of the actuator to enable manual operation of the actuator in a first direction and a second direction.
Claims23
A manual override apparatus, comprising:
- a base to be mounted to an actuator;
- a drive member operatively coupled to the base;
- a collar fixed to an end of the drive member and selectively engageable to a stem of the actuator;
- and
- a clip to couple the stem to the collar, the clip to contact the stem and the collar, and wherein the stem and the collar are to be coupled via the clip without manually positioning the clip to enable manual operation of the actuator in a first direction and a second direction opposite the first direction.
2 more elements
A manual override apparatus, comprising:
- a support frame to be mounted to an actuator;
- a stem operatively coupled to the actuator, wherein the stem has a groove adjacent an end of the stem;
- a drive member operatively coupled to the support frame;
- a collar coupled to an end of the drive member and selectively engageable to the stem, wherein the collar comprises a notch and wherein the end of the collar is separated from the stem in a longitudinal direction until the collar engages the stem;
- and
- a clip to couple the collar to the stem by engaging the groove of the stem through the notch to operation of manually override the actuator and to operate the actuator in a first direction and a second direction opposite the first direction.
3 more elements
A method to override an actuator, the method comprising;
- operatively coupling a support frame and a linear drive;
- mounting the support frame to the actuator, wherein the actuator comprises a stem;
- selectively engaging the linear drive to the stem in an axial direction via a user removable clip;
- and
- manually operating the linear drive to cause the linear drive to push the stem in a first direction and to pull the stem in a second direction opposite the first direction.
2 more elements
Dependencies are inferred from the claim text.