Abstract: A pulley system for enabling an object attached to a line to pass around a rotating pulley at least partially enclosed by a housing, without causing the object to encounter interference from the housing structure as the object passages through. An inward beveled edge of the housing structure may act to guide the line into the pulley groove. An object passthrough window for allowing the object to pass around the pulley while the pulley is rotating, without encumbrance of the object, may comprise a substantially solid, or continuous, inner surface formed of the inward beveled edge and the pulley groove. An exemplary use of the pulley system is in drive or transfer pulleys, or both, in systems utilizing pulley arrangements: for example, in systems such as lure coursing systems that continuously loop a line having a lure attached, for the enjoyment of domesticated animals.

Abstract: A lure coursing system for the enjoyment of domesticated animals comprising: a motorized drive unit disposed at a first location, the motorized drive unit including a drive housing enclosing a drive pulley operatively connected to a motor; a transfer unit disposed at a second location, the transfer pulley unit including a transfer housing enclosing a transfer pulley; a lure line engaging the drive pulley and the transfer pulley so as to form a continuous loop configuration for the lure line; and a lure attached to the lure line.