Patents by Inventor John J. Hronas

John J. Hronas 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).

  • Railing spindle or baluster
    Patent number: 5876021
    Abstract: Spindles, balusters, and railing posts are injection molded to encase reinforcing rods or tubes. Preferably the rods or tubes are magnetically responsive, which permits them to be held in place by magnets during the molding process.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: March 2, 1999
    Assignee: Jonathan P. Spence
    Inventors: Jonathan P. Spence, John J. Hronas
  • Coupled golf tees
    Patent number: 5820490
    Abstract: Two golf tees are tethered together by a cord, preferably a monofilament which passes through the stems of the tees. Pegs mounted on a home station are inserted into the tees for storage and carrying the tees through the game. In use, both tees are inserted into the ground, and the tether prevents loss of the tees. The tees are made of high density polyethylene or other similar tough material, as the assembly is designed to prevent loss and breakage of tees.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: October 13, 1998
    Inventors: John J. Hronas, Michael J. Hronas, Joseph Mihna
  • Method and apparatus for separating an LOM sculpture from an adherent base
    Patent number: 5657679
    Abstract: In "laminated object manufacturing" in which a prototype of an object is constructed by layering pieces of paper which are individually cut by a laser beam controlled by a 3-D computer design, method and apparatus are disclosed for severing the completed "build" from its base by a wire which is constricted to cut through a low-density layer between the base and the build.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: August 19, 1997
    Assignee: Multi-Products, Inc.
    Inventors: John J. Hronas, Marcin Niemiec
  • Method of making a mold
    Patent number: 5515903
    Abstract: A method is disclosed for making molds for use in injection molding wherein a cement replica is made of a pattern by curing the cement in a silicon rubber negative of the pattern, then pouring molten zinc or zinc alloy into a frame containing the cement replica. The cooling of the mold metal is controlled by the direct application of flame and frequent adjustments of clamps which firmly contact the mold to a solid surface.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: May 14, 1996
    Assignee: Multi-Products, Incorporated
    Inventors: John J. Hronas, Michael J. Hronas
  • Container and support
    Patent number: 3986695
    Abstract: A combination cover support and container cover, made up of an elongated bar, generally rectangular in cross section, having a front, top, rear and bottom surface is disclosed. Two vertically spaced, longitudinally extending slots are formed in the front face of said bar and a single longitudinally extending slot is formed in the rear face of the bar. The single slot in the rear of the bar is substantially the same width and disposed directly behind the first mentioned slot and the front face, forming a web between the front slot and the rear slot and spaced pairs of holes formed in this web. These holes are spaced downwardly from the top surface of the slots so that hooks on the container support can extend through the pairs of holes and lay behind the rear surface of the slots.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: October 19, 1976
    Inventor: John J. Hronas