Patents by Inventor Daniel W. Leo

Daniel W. Leo 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: 5848727
    Abstract: A manually operated dispensing device for ejecting perfume sampling strips of varying length and thickness. Interchangeable septums are provided to form properly sized stacking channels. A resilient lip prevents more than one sample strip from being ejected during a single activation. A tapered exit opening accommodates the leading edge of strips of varying thickness and possible misalignment.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: December 15, 1998
    Inventors: Daniel W. Leo, Thomas E. Peterson
  • Patent number: 5244116
    Abstract: A cosmetic sample dispenser having plural replaceable magazines supported on a common base. Each of the magazines is positioned within a recess in the base and maintained in operative position by a latch against an ejector spring. The individual magazines each include an elongated main housing enclosing a follower plate and follower spring for urging stacked rectangular planar samples upwardly to a point of dispensing. A tubular sleeve element surrounds the main housing for relative axial manually imparted movement to actuate an ejector means for projecting one end of an upwardmost sample in a stack outwardly through an exit opening where it may be manually grasped for removal by a user. Upon release of an end wall of the housing the ejector spring returns the main housing to its original position within its respective recess and relative to the sleeve element for reactivation.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: September 14, 1993
    Inventor: Daniel W. Leo
  • Patent number: 4559731
    Abstract: An improved illuminated sign construction utilizing a single source of illumination to back-light a transparency and a surrounding synthetic resinous frame element, the exposed edges of which emit a glow resembling that of a fluorescent tube. The exposed edges may be optionally of rounded configuration to achieve additional brightness.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: December 24, 1985
    Assignee: Ledan, Inc.
    Inventors: Mauricio Frois, Daniel W. Leo
  • Patent number: 3964190
    Abstract: An advertising display device characterized by a rotating cardboard cylinder in which rotation is propelled by air currents in the room impinging upon air vanes extending outwardly from the cylinder. The device includes a low-friction rotational supportive being created by opposing magnetic fields. The device consists of a segmented pole supported at a lower end thereof by a floor or other horizontal surface; disposed at the top of the upper section of the pole is a magnet with a protruding pin. In the center of the top wall of the cylinder is another magnet with a corresponding recess. The pin of the first magnet rests in the recess of the second, and the magnets face each other with like polarity, thus repelling each other. This creates a floating effect, allowing for low frictional rotation.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: June 22, 1976
    Inventor: Daniel W. Leo
  • Patent number: D276092
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: October 23, 1984
    Assignee: Ledan, Inc.
    Inventor: Daniel W. Leo
  • Patent number: D388956
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: January 13, 1998
    Assignee: Ledan, Inc.
    Inventor: Daniel W. Leo