9/1/2023 0 Comments Pimple extractors2, in which the forward end of the plunger stem I I lies within and a short distance inwardly from the forward end of the tube 3, in which position such end of the plunger stem is enclosed and protected from injury or contamination by contact with extraneous objects.įitted to slide upon the cylinder is a sleeve I4 which is normally disposed in the position shown in Fig. The two springs operate in balancing relation to normally hold the plunger in the position shown in Fig. Another spring I3 is arranged to bear at its forward end against the rear end of the plunger body and extends from the cylinder member I through the nipple 6 into the socket 8 of the member 2 and operates to hold the plunger pressed forwardly and to resist its rearward movement except to a predetermined degree under the action of the spring I2. A coiled spring I2 is disposed in the forward portion of the chamber 4 between the plunger body I0 and the front wall of said chamber and acts to hold the plunger normally retracted. Mounted to slide in the cylinder member is a plunger comprising a plunger body I0, which fits and slides in the chamber 4 and a reduced plunger portion orstem I I which is fitted to slide in the bore of the tube 3.
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