1. The feed tube is mounted to the piston chamber.

2. Step 2 – The material has filled the piston chamber and the piston is ready to start its down stroke.

3. The syringe feeds material to the piston chamber while the piston is in the up stroke position.

4. The tube wall of same section of near end of said piston chamber has three uniformly distributed small projections to prevent the piston out of the piston chamber from near end.

5. As the piston moves up, it creates a vacuum which helps suck the material down the material feed tube and into the piston chamber.

6. It is mainly consisted of body, connecting pipe cushion container, piston chamber, disc, valve stem and other parts.

7. It is mainly consisted of body , bonnet, cushion container, piston chamber, disc valve stem and other parts.

8. Step 1 – The piston is in the up stroke position and material is allowed to fill the piston chamber.

9. It is mainly consisted of boby, bonnet, cushion container, piston chamber, disc, stem and other parts.