Broad Face, Adjustable Gap Tool (e.g., Ruling Pen) Patents (Class 401/256)
  • Patent number: 4738669
    Abstract: A fluid dispenser having a handle portion supporting at least three spaced-apart, flexible prongs or tines that meet at a pyramidal apex to form a fluid-containing cradle. The cradle holds a precise amount of fluid therein by surface tension between the prongs and the fluid. The small cradle pocket formed at the apex of these prongs has a capillary channel disposed ahead of it, which terminates at the tip of the prongs. When the tip of the prongs are contacted to a body surface in question and slightly flexed, fluid will flow from the cradle through the capillary channel to this surface.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: April 19, 1988
    Inventor: David G. Vlock
  • Patent number: 4171168
    Abstract: A pen of the embouchure type having a pair of contiguous nibs for a writing tip comprising at least one pair of shaped lips forming a curvate capillary mouth and being flexible to permit a slit formed by the lips to vary in breadth with the pressure applied upon the tip to produce an ink track of corresponding breadth; such a pen formed of flexible material with strengthening structural formations; and such a pen in which a plurality of writing tips may be formed at the nib end; the multitipped nib end being formed either from a tube or tubes of flexible material or from a sheet or sheets of flexible material.
    Type: Grant
    Filed: August 22, 1977
    Date of Patent: October 16, 1979
    Inventor: Ben Braun
  • Patent number: 3950106
    Abstract: A pen of improved writing range, differentiated primarily in that it has a flexible capillary mouth of continuous, annular, free shape which can be reformed by writing pressure into an embouchure slit in all axial writing positions. The writing quality of the pen is determined by the shape of the lips forming the embouchure. By this means, point curvature and point pressure may be utilized in different degrees to produce various forms of lines to fill a particular writing, drawing, or lettering need.
    Type: Grant
    Filed: January 7, 1975
    Date of Patent: April 13, 1976
    Inventor: Ben Braun