Caster thread guard and caster assembly
DCFirst Claim
1. A caster assembly comprising:
- a yoke having a first yoke leg and a second yoke leg with a yoke leg axle opening through the first and second yoke legs;
a wheel having a hub and a hub axle opening through the hub, wherein the wheel is attached to the first and second yoke legs with an axle bolt;
a thread guard located between the hub and the first yoke leg, the thread guard having a disk-shaped body with a thread guard axle opening through the body for receiving the axle bolt, and wherein the thread guard further includes an outer surface facing toward the first yoke leg and an inner surface facing toward the hub, wherein the outer surface includes a raised ridge extending away from the body, wherein the ridge substantially surrounds and conforms to the shape of the first yoke leg and extends beyond the furthest extent of the axle bolt.
2 Assignments
Litigations
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Accused Products
Abstract
A caster includes a yoke having a yoke leg with a yoke leg axle opening through the yoke leg. A wheel having a hub and a hub axle opening through the hub is attached to the yoke leg with an axle bolt. A thread guard is located between the hub and the yoke leg. The thread guard has a disk-shaped body with a thread guard axle opening through the body for receiving the axle bolt. The thread guard further includes an outer surface facing toward the yoke leg and an inner surface facing toward the hub, and the outer surface includes a raised ridge extending away from the body. The ridge substantially surrounds and conforms to the shape of the yoke leg. The ridge preferably extends from the body past the outer surface of the yoke leg.
23 Citations
26 Claims
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1. A caster assembly comprising:
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a yoke having a first yoke leg and a second yoke leg with a yoke leg axle opening through the first and second yoke legs; a wheel having a hub and a hub axle opening through the hub, wherein the wheel is attached to the first and second yoke legs with an axle bolt; a thread guard located between the hub and the first yoke leg, the thread guard having a disk-shaped body with a thread guard axle opening through the body for receiving the axle bolt, and wherein the thread guard further includes an outer surface facing toward the first yoke leg and an inner surface facing toward the hub, wherein the outer surface includes a raised ridge extending away from the body, wherein the ridge substantially surrounds and conforms to the shape of the first yoke leg and extends beyond the furthest extent of the axle bolt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A thread guard in a caster assembly, the caster assembly having a wheel that is attached to a first yoke leg and a second yoke leg by an axle bolt, the thread guard comprising:
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a disk-shaped body; a thread guard axle opening through the body for receiving an axle bolt; the body having an inner surface facing toward a hub of the wheel when assembled into the caster assembly, and having an opposite outer surface; and a raised ridge extending away from the outer surface of the body, wherein the ridge substantially surrounds and conforms to the outline of a shape of the first yoke leg when the first yoke leg and thread guard are assembled, wherein the ridge defines a yoke leg recess and extends beyond the furthest extent of the axle bolt when the thread guard is assembled in the caster assembly. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A material handling cart comprising:
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a frame; a material support structure coupled to the frame; a plurality of wheels coupled to the frame, wherein one of the wheels includes; a yoke having a first yoke leg, a second yoke leg with a yoke leg axle opening through the first and second yoke legs; a wheel having a hub and a hub axle opening through the hub, wherein the wheel is attached to the first and second yoke legs with an axle bolt; a thread guard located between the hub and the first yoke leg, the thread guard having a disk-shaped body with a thread guard axle opening through the body for receiving the axle bolt, and wherein the thread guard further includes an outer surface facing toward the first yoke leg and an inner surface facing toward the hub, wherein the outer surface includes a raised ridge extending away from the body, wherein the ridge substantially surrounds and conforms to the shape of the first yoke leg and extends beyond the furthest extent of the axle bolt. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification