| CPC A61C 17/08 (2019.05) [A61C 1/0061 (2013.01); A61C 17/12 (2019.05)] | 12 Claims |

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1. A tailpiece for a dental valve device, the tailpiece comprising:
a body having a valve receiving end having a circular collar having a length extending from a first end of the collar closer to the body to a second free end of the collar, a hose receiving end having an integral circular stop, an intermediate elbow portion between the valve receiving end and the hose receiving end, a first arm portion between the valve receiving end and the intermediate elbow portion, a second arm portion between the intermediate elbow portion and the hose receiving end, a first reinforcing rib on the body extending along the body from the valve receiving end to the integral circular stop, and a second reinforcing rib on the circular collar separate from the first reinforcing rib on the body with the second reinforcing rib extending entirely along the length of the circular collar;
a lumen formed in the body between the valve receiving end and the hose receiving end with the lumen having a lower seat portion in the first arm portion between the valve receiving end and the intermediate elbow portion, and a stop element opposite of the lower seat portion; and
a check valve positioned in the lumen in the first arm portion, the check valve comprising a flap portion having a lower end and an upper end, the lower end being adjacent to the lower seat portion and the upper end being adjacent to the stop element.
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