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US 2008/0156596 A1Published application
Sprag and bearing system
AssigneeCaterpillar Inc.
InventorsDavid P. Smith, Eric R. Lauterbach, Daniel T. Mather
Life of this patent
Estimating the term…
Abstract
A sprag and bearing system including a sprag is disclosed. The sprag includes an integral body having an oblong cross sectional circumference at least one actuator configured to selectively rotate the body about an axis in a first direction. The sprag also includes at least one spring configured to bias the body to rotate about the axis in a second direction.
Claims20
A sprag comprising:
- an integral body having an oblong cross sectional circumference;
- at least one actuator configured to selectively rotate the body about an axis in a first direction;
- and
- at least one spring configured to bias the body to rotate about the axis in a second direction.
1 more element
A bearing comprising:
- a body having a plurality of ridges on outer longitudinal surface and being configured to engage an inner and outer race;
- the inner race having a first plurality of grooves on an outer surface thereof;
- the outer race having a second plurality of grooves on an inner surface thereof;
- and
- the quantity of the plurality of ridges being at least twice the quantity of the first plurality of grooves.
2 more elements
A system comprising:
- an inner race member and an outer race member, the inner race member spaced apart from the outer race member;
- a plurality of sprags disposed between the inner and outer race members and configured to selectively and substantially lock the inner and outer race members together as a function of pressurized fluid being selectively supplied to the plurality of sprags.
Dependencies are inferred from the claim text.