Back to results
US 2016/0354907 A1Published application
Ratcheting torque wrench
AssigneeECA Medical Instruments
InventorsJohn Nino, David Ivinson, III
Life of this patent
Estimating the term…
Abstract
A disposable ratcheting device and method is disclosed, which may include a shaft extending axially through at least a shank. The shank also provides a cup or chamber wherein a series of drive bodies reside in a movable fashion. The shank is placed in a body having an inner wall with teeth formed radially, The drive bodies have toes protruding beyond the shank and which, in a locked direction, engage the teeth inside the body.
Claims15
1-6. (canceled)
A plastic ratchet mechanism, comprising:
- a cylindrical body with a with an inner annular wall, a cylindrical end (18), and a cylindrical top (19);
- a plurality of ratchet teeth formed or molded on the inner annular wall;
- a cup shaped cylindrical upper shank smaller than the interior diameter of the cylindrical body and having an annular wall around its periphery said annular wall forming the peripheral wall;
- drive body guides comprising:
- at least one passageway through the annular wall fluidly connecting each drive body guide to the inner annular wall of the body;
- at least one mounting post;
- one or more of movable drive bodies mounted to the cup shaped upper shank via the at least one mounting post;
- and,
- each drive body having a toe that protrudes through the passageway beyond the annular wall to engage a ratchet tooth when rotated in the positive lock direction.
6 more elements
A method of ratchet driving a shaft, the method comprising:
- Within a hollow body placing a lower shank and an upper shank;
- forming a plurality of ratchet teeth on the inner annular wall of the hollow body;
- affixing a shaft with a tip at one end to a cup shaped upper shank;
- placing the cup shaped upper shank within the hollow body;
- placing a plurality of movable drive bodies in the cup shaped shank and each drive body having a toe protruding radially from the shank towards the inner annular wall of the hollow body;
- and,
- connecting the toes to the ratchet teeth via rotating the shaft in a locked direction when rotating the body.
4 more elements
Dependencies are inferred from the claim text.