Seismic actuator
OwnerColin Johnstoneinventor
Life of this patent
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OwnerColin Johnstoneinventor
Estimating the term…
An actuator that includes a shelf having a pivot cone, a first member, a second member, a trigger pin and a trigger lever latch. The first member includes a weight, a first shaft extending upwardly from the weight and through an opening in the pivot cone, and a first plate affixed to the first shaft. The first plate is supported by the pivot cone. The second member includes a second plate resting on the first plate and a second shaft extending upwardly from the second plate. The trigger lever latch includes a first portion connected to the second shaft and a second portion extending upwardly at an angle away from the first portion. The trigger pin has an engagement surface. The trigger pin is movable between an operational state and a tripped state. The second end of the trigger lever latch is engaged with the engagement surface.
An actuator comprising:
The actuator of claim wherein the engagement surface defines a first angle with respect to the trigger pin axis, the second end of the trigger lever latch defines a second angle with respect to the trigger pin axis, and the first and second angles are different.
A method that occurs in the event of seismic activity, the method including steps of:
A seismic actuated circuit breaker assembly comprising:
A reset mechanism comprising:
A seismic actuated gas shut off valve assembly for use with a gas regulator having a diaphragm, the assembly comprising:
A seismic actuated micro-switch assembly comprising:
A method of switching a micro-switch between on and off states, the method including the steps of:
A seismically actuated mercury switch comprising:
The seismically actuated mercury switch of clan. 34 wherein the body includes first and second lower ramps positioned on either side of the lower conductor and that partially define the interior.
Dependencies are inferred from the claim text.