Patents by Inventor John F. Dumelle

John F. Dumelle 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).

  • Spacing device for placement of tile
    Patent number: 6647685
    Abstract: A tool for the spacing of tiles during installation includes a central body with radially projecting prongs that are fitted between adjacent tiles to control the spacing thereof.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: November 18, 2003
    Assignee: Space-It-Rite
    Inventors: Joseph L. Annarella, Robert Grzybowski, John F. Dumelle
  • Spacing device for placement of tile
    Publication number: 20030126815
    Abstract: A tool for the spacing of tiles during their installation includes a central body with radially projecting prongs that are fitted between adjacent tiles to control the spacing thereof.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 10, 2003
    Applicant: Space-It-Rite, a corporation of the State of Illin
    Inventors: Joseph L. Annarella, Robert Grzybowski, John F. Dumelle
  • Self-contained hydraulic dispensing mechanism with pressure relief regulator
    Patent number: 5411180
    Abstract: A self-contained dispensing mechanism includes a main body joined to a reservoir, cylinder and piston structure on the main body and a stop assembly for securing containers on said main body. A pump is provided in the main body for pumping liquid from the reservoir to the cylinder to actuate the piston therein. A piston rod, secured to the piston and movable therewith actuates push rods with push ends for dispensing viscous material from the containers. The push ends are adjustably secured on the push rods for accommodating different sizes of containers.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: May 2, 1995
    Assignee: Innovative Technology Sales, Inc.
    Inventor: John F. Dumelle
  • Control system for a plurality of stepper motors
    Patent number: 4757245
    Abstract: An apparatus and method for operating a plurality of stepper motors. A controller operates a plurality of sequentially connected stepper motors executing substantially the same motion. The apparatus includes an incremental control feature for generating an alignment signal to step an associated motor a predetermined amount. Once the alignment of all the motors is done all the motors are moved with substantially the same motion.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: July 12, 1988
    Assignee: Merit Machined Products
    Inventors: David A. Ayers, John F. Dumelle