![]() This Plunger, or Disc, or Pressure Lever whichever design may be employed movement is activated when the tool or handpiece or hose coupling pushes either one of these three items back and âpinches flatâ the tube located in the main, cross channel, thus preventing the passage of any gasses, air and/or water. ![]() A second channel, or well-type recess converges on this âthrough channelâ which can be either horizontal or vertical to allow for the forward and backward movement of a solid Plunger or an elongated, oval-shaped Disc or a Pressure Lever to âpinch flatâ the walls of the flexible tubing passing through or across the path of the main channel thus restricting the flow of any gasses, air or water. ![]() 1 normally referred to as a Universal holder, front section modified for this application and attached to a Back Plate or adapter through which channels are bored to allow flexible air tubing vinyl or other material passage in a horizontal or vertical manner. The assembly comprises of a standard handpiece holder FIG. The secondary control causes a build-up of pressure in the secondary chamber when the tool is absent from the hanger and causes the pressure in the secondary chamber to drop below the predetermined level when the tool is present.Ī pneumatic âPinch Valveâ control assembly for regulating stopping and/or starting the supply of gasses, air and/or water to a tool, or any type of Dental or Laboratory handpiece in response to its shaft entering and encircling the inner circumference inside a hanger or holder in which it is removably stored. The secondary chamber communicates with the secondary control, which is integrated in the hanger for sensing the presence or absence of the tool in the hanger. The control valve extends into a secondary chamber having means for operating the control valve in response to a predetermined pressure level in the secondary chamber. The assembly comprises a primary fluidic control and a secondary control, with the primary fluidic control having a control valve which directs the flow of drive air from a source of supply through a primary chamber to a main outlet coupled to the handpiece. Peralta, Hammond, LA 70403ġ120 112Th Ave Ne #400, Bellevue, WA 98004ġ110 112Th Ave Ne Ste 300, Bellevue, WA 98004Ī fluidic control assembly for controlling the supply of drive air and/or water to a tool such as a dental handpiece in response to its presence or absence in a hanger in which it is removably stored. Managing Director, Vice President Of Northeast And Midwest Sales Regions
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