초록 ▼

A caster for rollably supporting a device with respect to a support surface is disclosed. The caster includes a body and a spherical member. The body has a concave surface thereof. The spherical member is rotatably contactable with at least a portion of the concave surface and rotatable with the sup

A caster for rollably supporting a device with respect to a support surface is disclosed. The caster includes a body and a spherical member. The body has a concave surface thereof. The spherical member is rotatably contactable with at least a portion of the concave surface and rotatable with the support surface.

대표청구항 ▼

[ What is claimed is:] [1.] A caster for rollably supporting a device with respect to a support surface, said caster comprising:a body, said body having a concave surface thereof;a spherical member rotatably contactable with at least a portion of the concave surface and rotatable with respect to the

[ What is claimed is:] [1.] A caster for rollably supporting a device with respect to a support surface, said caster comprising:a body, said body having a concave surface thereof;a spherical member rotatably contactable with at least a portion of the concave surface and rotatable with respect to the support surface; anda retaining member axially adjustable with respect to the body upon spiral adjustment, the retaining member for retaining the spherical member with respect to the body and for adjusting the relationship between the spherical member and the body;wherein the retaining member is positionable with respect to the body for permitting rotation of the spherical member and wherein the retaining member is positionable with respect to the body for prohibiting rotation of the spherical member.