| 摘要 |
<p>Water cooler for a dental impression spatula with a cavity comprises water inlet and outlet pipes (3, 4) leading into and out of the cavity (2) of the spatula (1). The inlet pipe contains a valve (5) and is connected to a cold water pipe (7) mounted in the body (6) of a dental appts. and leading to a flushing pipe for a spit bowl. The valve consists of a two-way valve with a single lever (12) by which it can be set for supply to the spatula or supply to the flushing pipe. The valve pref. has a housing with a tubular connector (14) by which it is connected to an opening (16) of the cold water pipe in the body of the appts.</p> |
