Patents by Inventor Robert W. Mantel

Robert W. Mantel 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: 4573392
    Abstract: An in-line bullet feeder including a tubular member having a passage forming a path of travel through the member, a first bullet stop assembly formed by three balls positioned at equally spaced positions around the passage, the balls being biased inwardly by a resilient ring and a second bullet stop assembly formed by three balls positioned above the first stop assembly a spaced distance at equally spaced positions around the passage, the balls of the second stop assembly being retained in the passage by a tubular member having a camming surface and a retaining flange for selectively locking the balls in the passage, the first stop assembly being cammed out of the passage by the open end of the shell case as it enters the passage and the second stop assembly preventing upward movement of the bullet to seat the bullet in the casing.
    Type: Grant
    Filed: September 10, 1984
    Date of Patent: March 4, 1986
    Assignee: Mantel Machine Products, Inc.
    Inventor: Robert W. Mantel
  • Patent number: 4475435
    Abstract: A bullet feed assembly for a shell casing reloader, the assembly including a housing having a passage, a gravity feed bullet reservoir connected to the upper end of the passage, a first pair of catch members pivotally mounted in the housing for movement into the passage, to catch the bullets, the catch members including cam surfaces engageable by movement of a shell casing into the passage to release the bullet, and a pair of latch members mounted for pivotal movement into and out of the passage to prevent upward movement of the bullet in the passage.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: October 9, 1984
    Assignee: Mantel Machine Products, Inc.
    Inventor: Robert W. Mantel
  • Patent number: 4429610
    Abstract: An automatic shell reloader of the type having a fixed platen and a die platen, the die platen having a plurality of dies for performing the reload function and being moveable toward and away from the fixed platen to reload a shell case, the improvements comprising a guard carried by a primer cap slide assembly mounted on the fixed platen to block the force of a detonated primer cap from reaching the die platen, and a primer cap storage assembly mounted on the die platen, the storage assembly including a storage tube having a number of spring biased fingers at the lower end for retaining primer caps in the tube and a cam mounted on the fixed platen in a position to engage the fingers to release one primer cap at a time from the tube.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: February 7, 1984
    Inventor: Robert W. Mantel