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US 6,216,826 B1Granted
Bank hoist braking apparatus
OwnerMichael John Botzetinventor
Life of this patent
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OwnerMichael John Botzetinventor
Estimating the term…
A braking mechanism for use with a lift is provided that interacts with a fixed cable that runs the length of the path of travel of the lift. The interaction of the cable and braking mechanism transfers the rotational power created by the travel of the braking mechanism over the cable to a centrifugal clutch. When an over speed situation is encountered by the lift, the centrifugal clutch expands and causes the rotational force to be transferred to the cam sprocket which forces an offset portion of the trip lobe upward until it engages and releases a cam lock. This releases the load on the spring which rotates the cable cam which in turn closes the distance between its lower surface and the floor of the cam housing. The result of this is that the fixed cable is pinched between the cable cam and the cam housing which effectively stops the relative motion between the braking mechanism which in turn stops the motion of the lift.
An over speed emergency braking system connected to a carriage moving on predefined tracks said tracks having an elongate predefined braking section running parallel to said tracks said braking system comprising;
An over speed emergency braking system for use on cars on predefined tracks said tracks having an elongate cable braking section running parallel to said tracks said braking system comprising;
An over speed emergency braking system for use on cars traveling on predefined tracks said braking system comprising:
Dependencies are inferred from the claim text.