Fluid applicator

A fluid applicator comprising:

• a main housing comprising a first end and a second end opposite to the first end, the main housing extending along a longitudinal axis defined between the first end and the second end, wherein the main housing defines an applicator outlet disposed at the first end;
• a first cylinder disposed within the main housing and comprising a first seal for holding a first fluid, wherein at least 85% of a total volume of the first cylinder is filled with the first fluid;
• a second cylinder spaced apart from the first cylinder and disposed within the main housing, the second cylinder comprising a second seal for holding a second fluid different from the first fluid, wherein at least 85% of a total volume of the second cylinder is filled with the second fluid;
• a mixing chamber housing disposed within the main housing and spaced apart from each of the first cylinder and the second cylinder along the longitudinal axis;
• a first piercing element substantially aligned with the first seal along the longitudinal axis and disposed between the mixing chamber housing and the first cylinder, the first piercing element comprising a first cylindrical base connected to the mixing chamber housing and extending towards the first cylinder, a first tip spaced apart from the mixing chamber housing and disposed proximal to the first seal, and a plurality of first walls extending from the first cylindrical base obliquely along the longitudinal axis, the plurality of first walls being angularly spaced apart from each other at the first cylindrical base and converging towards each other to intersect at the first tip;
• a second piercing element substantially aligned with the second seal along the longitudinal axis and disposed between the mixing chamber housing and the second cylinder, the second piercing element comprising a second cylindrical base connected to the mixing chamber housing and extending towards the second cylinder, a second tip spaced apart from the mixing chamber housing and disposed proximal to the second seal, and a plurality of second walls extending from the second cylindrical base obliquely along the longitudinal axis, the plurality of second walls being angularly spaced apart from each other at the second cylindrical base and converging towards each other to intersect at the second tip;
• and
• a nozzle connected to the mixing chamber housing opposite to each of the first piercing element and the second piercing element, the nozzle extending from the mixing chamber housing to the applicator outlet, wherein the nozzle and the mixing chamber housing define a mixing chamber cavity;
• wherein, upon application of a force at the second end of the main housing:
• the first tip engages and pierces the first seal into a plurality of first flaps corresponding to the plurality of first walls, thereby creating a first fluid path between the first cylinder and the mixing chamber cavity, wherein the first fluid flows through the first fluid path from the first cylinder to the mixing chamber cavity;
• and
• the second tip engages and pierces the second seal into a plurality of second flaps corresponding to the plurality of second walls, thereby creating a second fluid path between the second cylinder and the mixing chamber cavity, wherein the second fluid flows through the second fluid path from the second cylinder to the mixing chamber cavity.