Patents by Inventor Franklin J. Hartel

Franklin J. Hartel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5551456
    Abstract: An applicator brush for fluid-type cosmetics, such as may be used in applying mascara to eyelashes which includes a bristle portion disposed at one end of a helical twisted wire core with a handle disposed at the outer end. The configuration of the bristle portion is such that the bristle tips define a generally cylindrical outer surface having two (2) diametrically opposed channels and application surfaces helically disposed along the length of the brush portion which are spiraled about the core to form a helix thereof. The brush portion is formed by disposing the bristles between the lengths of the wire and helically twisting the wire to form the core that retains the bristles therebetween. The bristle portion is then trimmed to a shape of generally rectangular cross-section. To form the helical application surface, the wire core is further twisted in the same direction a predetermined number of turns.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: September 3, 1996
    Assignee: Sanderson-Macleod, Inc.
    Inventor: Franklin J. Hartel
  • Patent number: 4861179
    Abstract: A spiral mascara brush including both soft bristles for applying mascara and stiff bristles for combing applied mascara through a user's eyelashes. The soft and stiff bristles are intermingled throughout the length of the brush in specified proportion so that the entire brush may be used both for applying the mascara and combing the eyelashes.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: August 29, 1989
    Assignees: Henlopen Manufacturing Co., Inc., Sanderson-Macleod, Inc.
    Inventors: Volker Schrepf, Franklin J. Hartel
  • Patent number: 4733425
    Abstract: Mascara brush construction composed of a plurality of radially extending bristle filaments fastened in brush formation by a helically twisted metallic wire core. The bristles are tubular or hollow polyamide filaments, each crimped at the midpoint of its length by portions of the helically twisted wire so that the filament halves flare outward in various directions from the brush core. In an alternate embodiment the filaments are noncircular in cross-section and include a plurality of longitudinal, radially extending flange portions.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: March 29, 1988
    Assignee: Sanderson-MacLeod, Inc.
    Inventors: Franklin J. Hartel, Eric W. Sanderson
  • Patent number: D331150
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: November 24, 1992
    Assignee: Sanderson-Macleod, Inc.
    Inventor: Franklin J. Hartel