Patents by Inventor Frederick G. Stevens

Frederick G. Stevens 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: 4614050
    Abstract: A substantially flat shutter plate is mounted for sliding movement on a shutter mounting means secured to the front of a laser aiming device housing. The shutter plate is substantially L-shaped to provide a fingerpull by contact with the shorter leg of the "L" and is slidable within a track formed in the rear surface of the mounting means, and includes in tandem, a first opening, a second opening and a solid portion, which can be used to aim a laser beam emitted from the laser aiming device housing, clean the laser tube, and shut the housing, respectively.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: September 30, 1986
    Assignee: Hydra Systems International, Inc.
    Inventor: Frederick G. Stevens
  • Patent number: 4580362
    Abstract: A mount for attaching a device to a firearm includes a longitudinal base adapted to carry the device to be mounted. The base has a track extending along a portion of the length thereof and a block is slidably mounted in the track. The block is biased toward the front end of the base by a spring. The block is adapted to be attached to a first fixed member at one end of a firearm barrel. The rear end of the base is adapted to be attached to a second fixed member at the other end of the firearm barrel. When properly mounted between the ends of the firearm barrel, the mount is held in place by the action of the spring, which forces the block attachment against the first fixed member and the rear attachment against the second fixed member. The rear attachment also includes spring means to prevent the mount from wobbling from side-to-side when attached to the first and second fixed members and a thumbscrew for locking the spring means to the second fixed member.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: April 8, 1986
    Assignee: Hydra Systems International, Inc.
    Inventor: Frederick G. Stevens
  • Patent number: 4539769
    Abstract: A mount for attaching a device to a firearm includes a longitudinal base adapted to carry the device to be mounted. The base has a track extending along a portion of the length thereof and a block is slidably mounted in the track. The block is biased toward the front end of the base by a spring. The block is adapted to be attached to a first fixed member at one end of a firearm barrel. The rear end of the base is adapted to be attached to a second fixed member at the other end of the firearm barrel. When properly mounted between the ends of the firearm barrel, the mount is held in place by the action of the spring, which forces the block attachment against the first fixed member and the rear attachment against the second fixed member.
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: September 10, 1985
    Assignee: Hydra Systems International, Inc.
    Inventors: Frederick G. Stevens, Robert J. Heideman, Jerry B. Holden
  • Patent number: 4494328
    Abstract: A mount for attaching a device to a firearm includes a longitudinal base adapted to carry the device to be mounted. The base has a track extending along a portion of the length thereof and a block is slidably mounted in the track. The block is biased toward the front end of the base by a spring. The block is adapted to be attached to a first fixed member at one end of a firearm barrel. The rear end of the base is adapted to be attached to a second fixed member at the other end of the firearm barrel. When properly mounted between the ends of the firearm barrel, the mount is held in place by the action of the spring, which forces the block attachment against the first fixed member and the rear attachment against the second fixed member. The rear attachment also includes spring means to prevent the mount from wobbling from side-to-side when attached to the first and second fixed members.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: January 22, 1985
    Assignee: Hydra Systems International, Inc.
    Inventor: Frederick G. Stevens