Oscillating linear actuator

A linear actuator configured to be driven by a source of oscillating motion, the linear actuator comprising:

• a traveler;
• an oscillating component operably coupled to the traveler, the oscillating component configured to oscillate responsive to an applied force from a motor assembly;
• and
• a directional clutch located between at least a portion of the oscillating component and at least a portion of the traveler, wherein the directional clutch is configured to cause the oscillating component to drive the traveler in the first rotational direction when the oscillating component is rotated in the first rotational direction and to allow the oscillating component to slip by the traveler when the oscillating component is rotated in the second rotational direction,
• wherein the oscillating component is operably coupled to the traveler such that rotational movement of the traveler in the first rotational direction causes displacement of the traveler along a travel direction.

A system comprising:

• an appliance having a motor;
• and
• an applicator head assembly coupled to the appliance, the applicator head assembly including:
• an oscillating component having an inner surface defining a portion of a variable volume reservoir including at least one composition outlet;
• a traveler operably coupled to the oscillating component;
• and
• a directional clutch located between at least a portion of the oscillating component and at least a portion of the traveler, wherein the directional clutch is configured to cause the oscillating component to drive the traveler in the first rotational direction when the oscillating component is rotated in the first rotational direction and to allow the oscillating component to slip by the traveler when the oscillating component is rotated in the second rotational direction,
• wherein the oscillating component and the traveler are engaged such that rotational movement of the traveler in the first rotational direction causes linear movement of the traveler to cause at least a portion of a composition received in the variable volume reservoir to flow out of the at least one composition outlet responsive to an applied oscillating force by the appliance.