Patents by Inventor John W. Engel

John W. Engel 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: 6176186
    Abstract: The present invention is directed toward an expansion projectile capable of achieving complete expansion at a subsonic speed. The projectile consists of a malleable core and a jacket of more structural integrity. Complete expansion is achieved through the use of a guaranteed misalignment of jacket scoring in relation to premade cuts within the projectile's core. Expansion is further facilitated through use of a gradient density bearing insert which is contained within the core. Upon impact of the projectile at its target the bearing insert will rupture and expand. This will guarantee complete disintegration of the projectile.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: January 23, 2001
    Assignee: Engel Ballistic Research, Inc.
    Inventor: John W. Engel
  • Patent number: 5020182
    Abstract: A device having a removable insert such as a brush, massage element or pad for applying lotions, medicines, and the like to human body. The device includes an elongated handle having a receptacle end provided with opposed inwardly facing grooves. The removable inserts are generally rectangular in shape and include integral spring biased tabs at the sides thereof. Each tab is provided with a locking stud that is received in a correspondingly shaped recess in the grooves. Each insert may include a brush, massage element, or disposable pad.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: June 4, 1991
    Inventor: John W. Engel