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US 12,559,898 B2Granted
Passive locking chuck for rotary driver
AssigneeOjjo, Inc.
InventorCharles Almy
Life of this patent
Estimating the term…
Abstract
A passive locking chuck for a rotary driver. The chuck receives the driving end of a foundation component such a screw anchor to be driven into the ground. As the driving end is inserted into the chuck, spring biased pawls are displaced until insertion is complete. The geometry of each pawl dictates that less force is required to insert the foundation component than to remove it. The chuck has a geometry that mates with the geometry of the driving end of the foundation component.
Claims16
A chuck for a rotary driver comprising:
- a main body;
- a mounting portion at one end of the main body for attaching to an output of a rotary driver;
- a receiving portion at an opposing end of the main body for receiving a driving end of a foundation component, the receiving portion comprising a notched opening;
- and
- a pair of spring pawls on the receiving portion, each spring pawl having a displacement surface terminating in a ledge, wherein the displacement surfaces are spring biased into the notched opening, and wherein the pair of spring pawls resist receiving the driving end of the foundation component with a first force, and resist releasing the foundation component with a second, greater force.
2 more elements
Dependencies are inferred from the claim text.