Power tool to spring torsioner converter
OwnerGary L. Hamman, Diana L. Hammaninventors
Life of this patent
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Abstract
A device to apply a rotational force to a spring of a rollup or overhead garage door counterbalancing mechanism. The device has a rotatable driven member mounted in a housing. The housing and the driven member have slots with an open end adapted to receive the shaft of the overhead garage door counterbalancing mechanism. A coupling member is configured to mount to the driven member and connect the driven member to the winding cone of a garage door spring to apply rotational force to the spring. The housing with the driven member may be connected to the body of an existing power tool in place of the original tool head, or, the housing may be permanently combined with a motor and transmission to provide a special purpose tool.
Claims8
An apparatus for applying rotational force to portions of a garage door assembly comprising:
- a housing;
- a driven member mounted to the housing having a first slotted portion;
- a transmission adapted to apply rotational force to the driven member;
- a coupling member including prongs adapted to mate with the driven member and rotate therewith, the coupling member further comprising at least a second slotted portion and one engagement member, the engagement member is adapted to engage portions of a winding member of a garage door assembly, and wherein the engagement member is rotatable.
Dependencies are inferred from the claim text.