Applicator

An applicator comprising:

• a reservoir for holding therein an application liquid and a liquid-supplying valve assembly disposed in a distal region of the reservoir,
• the valve assembly comprising:
• a valve chamber having a valve seat, with the seat having an opening opened forwardly, a valve body accommodated in the chamber and movable fore and aft to rest on and depart from the seat, and a flow restrainer also placed in the chamber and movable fore and aft and disposed in rear of the valve body,
• the applicator further comprising a biasing member disposed in rear of the flow restrainer such that this member urges the valve body through the restrainer towards the seat,
• wherein clearance appearing between the valve chamber inner wall and the valve body having departed from its seat is designed larger than the clearance between the flow restrainer and said wall,
• wherein the flow restrainer is a ball having a larger diameter than the valve body of a spherical shape.

An applicator comprising:

• a reservoir for holding therein an application liquid and a liquid-supplying valve assembly disposed in a distal region of the reservoir,
• the valve assembly comprising:
• a valve chamber having a valve seat, with the seat having an opening opened forwardly, a valve body accommodated in the chamber and movable fore and aft to rest on and depart from the seat, and a flow restrainer also placed in the chamber and movable fore and aft and disposed in rear of the valve body,
• the applicator further comprising a biasing member disposed in rear of the flow restrainer such that this member urges the valve body through the restrainer towards the seat,
• wherein clearance appearing between the valve chamber inner wall and the valve body having departed from its seat is designed larger than the clearance between the flow restrainer and said wall,
• wherein the flow restrainer is a columnar member having a larger diameter than the valve body of a spherical shape.

An applicator comprising:

• a reservoir for holding therein an application liquid and a liquid-supplying valve assembly disposed in a distal region of the reservoir,
• the valve assembly comprising:
• a valve chamber having a valve seat, with the seat having an opening opened forwardly, a valve body accommodated in the chamber and movable fore and aft to rest on and depart from the seat, and a flow restrainer also placed in the chamber and movable fore and aft and disposed in rear of the valve body,
• the applicator further comprising a biasing member disposed in rear of the flow restrainer such that this member urges the valve body through the restrainer towards the seat,
• wherein clearance appearing between the valve chamber inner wall and the valve body having departed from its seat is designed larger than the clearance between the flow restrainer and said wall,
• the applicator further comprising a penpoint tip disposed in front of the liquid supplying valve assembly, the tip having its rear end in contact with the distal portion of the valve body, whereby in use an application pressure imparted to the tip pushes back the valve body so that the liquid is fed thereto through the valve at a moderately low rate.