A fluid-operated needle valve having a fluid displaceable actuator reciprocable in one housing and a needle valve reciprocable in another housing. The two housings are detachably secured to each other

A nozzle of a dyestuff applicator has a cylindrical valve housing formed with an orifice obstructable by the tip of an electromagnetically displaceable needle which controls the outflow of dyestuff fr

A needle valve having improved economy of manufacture and assembly is disclosed in which the tapered end of the needle moves axially with respect to a valve seat having a cylindrical opening but does

A carburetor comprising a fuel/air induction passage, a secondary orifice communicating with the induction passage, and a fuel supply system operable to supply fuel from a source of fuel to the second

There is disclosed herein a needle type inflation valve comprising a housing portion having a circumferential flange for securing the housing to a bladder and a frustoconical through opening which rec

A needle valve having a soft tip adapted for sealing an annular valve seat of a body port. The soft tip may be defined as two dissimilar circular rod sections of ductile plastic with the larger diamet

Needle-valves to be inserted in a hot runner panel of an injection moulding machine for the distribution of the molten material to a plurality of dies fastened to the front of a hot runner panel and w

The pump Injector is a brass valve with a needle type regulator that is adapted onto the intake side of a pump. This injector enables a person to regulate the flow of a liquid composition into the mai