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US 8,601,894 B2Granted
Worm-gear assembly having a pin raceway
AssigneeSpinControl Gearing LLC
InventorsEric D. Carrier, David O. Carrier
Life of this patent
Estimating the term…
Abstract
A worm-gear assembly including a worm screw having at least one groove and a wheel having a plurality of rotatable pins along its periphery for engaging the worm screw. The pins are able to rotate in a direction other than a direction of wheel rotation. At least one raceway is provided for contacting pins that are not engaged with the worm screw during operation of the assembly.
Claims14
A worm-gear assembly, comprising:
- a worm screw having at least one groove;
- a wheel having a plurality of rotatable pins along its periphery for engaging the worm screw, the pins being able to rotate in a direction other than a direction of wheel rotation;
- and
- a raceway having a first raceway surface and a second raceway surface, the first raceway surface being operable to contact a plurality of the pins that are not engaged with the worm screw when the worm screw rotates in a first direction, and the second raceway surface being operable to contact a plurality of the pins that are not engaged with the worm screw when the worm screw rotates in a second direction,
- wherein the raceway is movable.
2 more elements
Dependencies are inferred from the claim text.