Three-state caster assembly with swivel lock and wheel brake

A caster assembly comprising:

• an attachment means for attaching the caster assembly to a base of an object;
• a caster yoke coupled to the attachment means,
• wherein the caster yoke is operable to swivel relative to the attachment means, and
• wherein the caster yoke is coupled to a wheel operable to rotate freely about a wheel axle;
• and
• a cam assembly operable in at least three states, the cam assembly comprising:
• an actuating means for operating the cam assembly,
• a cam in mechanical communication with the actuating means,
• a swivel lever mechanism in mechanical communication with the cam, and
• a brake lever mechanism in mechanical communication with the cam;
• wherein when the cam assembly is in a first state, the wheel is operable to rotate freely about the wheel axis and the caster yoke is operable to swivel freely relative to the attachment means;
• wherein when the cam assembly is in a second state, the cam disposes the swivel lever mechanism such that a first swivel brake is engaged to lock the caster yoke in a predetermined orientation relative to the attachment means while the wheel is allowed to rotate freely;
• and
• wherein when the cam assembly is in a third state, the cam disposes the brake lever mechanism such that, simultaneously, a wheel brake is engaged to stop the wheel from rotating freely about the wheel axis and a second swivel brake is engaged to stop the caster yoke from swivelling relative to the attachment means.