Abstract: A tampon inserter is disclosed of the type comprising an outer cylindrical insertion tube containing a compressed tampon in its proximal end and an inner plunger or piston axially movable within the outer tube for ejecting the tampon out of the proximal end of the insertion tube into the vagina. The outer insertion tube which is rotatable about the plunger is provided with (a) an outwardly extending annular ring to control the depth of insertion of the inserter and (b) an inwardly directed key or finger which depending upon the degree of rotation of the insertion tube about the plunger will extend into one of a plurality of elongated slots of various lengths positioned in the walls of the inner plunger which (slots) control the length of travel of the plunger and thereby provide a means for varying the depth of insertion of the tampon.

Abstract: The instant disclosure is concerned with martensitic stainless steel cutting edges such as razor blades which have superior corrosion resistance and which, although containing only between 0.30% to 0.45% carbon have hardnesses which are equal or better than cutting edges made from martensitic stainless steels containing 0.6% or more carbon which are widely sold commercially. Generally the blades are produced by treating them prior to hardening so that they will have a fine carbide microstructure comprising about 200 to about 500 carbides per 100 square microns, hardening them under conditions in which the fine microstructure will be substantially retained, i.e. subsequent to hardening they will still have about 200 to 500 carbides per 100 square microns, and forming the cutting edge.

Abstract: A process for producing long-lasting corrosion resistant carbon steel razor blades and the products made thereby. The process comprises first coating the cutting edges of the blades with chromium; and then immersing the blades in an electroless coating bath to provide a coating of a nickel-phosphorous, nickel- copper- phosphorous, cobalt-phosphorous or cobalt-nickel-phosphorous coating material on at least the bodies of the blades, the chromium coating preventing beading up of the coating material on the cutting edges of the blades to an extent that would require resharpening of the cutting edges. The blades may thereafter be overcoated with a carboxy-substituted silicone oil composition preferably comprising therein a long chain aliphatic acid, alcohol, amide and mixtures thereof.

Abstract: The present invention is concerned with processes for microhoning cutting edges and especially those of razor blades, wherein the edges are subjected to sonic energy and especially ultrasonic energy while said edges are in contact with a slurry or dispersion of abrasive particles which have diameters of less than 3 microns.

Abstract: The present invention is concerned with processes for michrohoning cutting edges and especially those of razor blades, wherein the edges are subjected to sonic energy and especially ultrasonic energy while said edges are in contact with a slurry or dispersion of abrasive particles which have diameters of less than 3 microns. The sonic or ultrasonic energy is emitted from a horn having a corrugated end and the ridges of said corrugated end are oriented so as to be perpendicular to the edges of the razor blades as they pass the horn, said blades being stacked in a magazine in which their edges are substantially parallel to one another and their flat surfaces in face-to-face relationship.

Abstract: The present invention is concerned with incorporating bis-(chloroalkyl) vinyl phosphonates in polyfluorocarbon coatings to improve the adhesion of such polyfluorocarbon coatings to cutting edges and especially to razor blade cutting edges, said cutting edges having outer surfaces of alumina, silica, tungsten, titanium, or tantalum.

Abstract: The present invention is concerned with catamenial tampons which comprise means for preventing by-pass but yet are readily removable. Generally the tampons are hollow cones of absorbable material with a withdrawal cord attached to the apex and an unfurlable cuff around the outside of the open base end of the cone.