By Plunger Moving Within Cylinder Patents (Class 124/65)
  • Patent number: 5115794
    Abstract: A launcher for a soft compressible closed cell foam ball which includes a cavity in which the ball is forced into from the front of the barrel and is held loosely therein and a plunger coupled to the barrel for causing theball to be compressed and then spring out of the cavity accompanied by a loud popping sound.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: May 26, 1992
    Assignee: Tonka Corporation
    Inventor: Randall H. Moormann
  • Patent number: 5113842
    Abstract: A ball launcher for launching a plurality of soft closed cell plastic compressible balls, one ball at a time, by causing a plurality of balls in a line, one ball at a time (each time the plunger is moved back and forth), to squeeze past a constriction at the front of the launcher. The front most ball in the line of balls, to be launched, is urged against the constriction by a resilient biasing carriage engaging the rear most ball in the line of balls.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: May 19, 1992
    Assignee: Tonka Corporation
    Inventor: Randall H. Moormann
  • Patent number: 5058561
    Abstract: A compressed air gun having a piston and cylinder combination for launching cylindrical objects therefrom. The compressed air gun has a smooth bore elongated hollow cylinder which receives an elongated ribbed piston therein. The piston is slightly longer than the cylinder and extends from one end thereof. The end of the piston within the cylinder has a resilient seal which rubs against the inner wall of the cylinder and provides an air tight seal therebetween. The projectile is in the form of a cylinder such as a beverage can. A seal ring is placed around the distal end of the projectile when the projectile is inserted in the downstream end of the cylinder. The seal around the projectile extends inwardly past an angled surface in the distal end of the cylinder forming an air tight seal therewith. The angle surface provides ease of projectile insertion into the cylinder.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: October 22, 1991
    Inventor: Harvey Starr
  • Patent number: 4961718
    Abstract: This invention relates to a toy pistol with a ball bullet and in particular to one characterized in a ball bullet which will rotate in unison with a bullet seat when the trigger is pressed and which will produce a cracking noise as the hammer hits thereon. Hence, the pistol may produce continuous cracking noise without replacing bullets.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: October 9, 1990
    Inventor: Szu-Hua Wu
  • Patent number: 4892081
    Abstract: A launcher for a soft compressible closed cell foam ball which includes a cavity in which the ball is forced into from the front of the barrel and is held loosely therein and a plunger coupled to the barrel for causing the ball to be compressed and then spring out of the cavity accompanied by a loud popping sound.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: January 9, 1990
    Assignee: Tonka Corporation
    Inventor: Randall H. Moormann
  • Patent number: 4881517
    Abstract: An air gun having a fixed barrel mounted on a body and a source of compressed air or gas housed in the body has a device for enabling a pellet to be inserted directly into the barrel. A breech block is angularly movable between a loading position in which the breech is exposed and a firing position in which the breech is closed, the breech block having passage for completing the connection between the breech and the source of compressed air. In the embodiment shown the breech block is cylindrical and is rotatably mounted in a continuation of a cylinder in which a spring urged piston works, and has a guide chute in its cylindrical surface to assist the introduction of the pellet. Seals may be provided at either end of the breech block.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: November 21, 1989
    Assignee: BSA Guns (UK) Limited
    Inventors: Roger D. Wackrow, Harold C. Jones
  • Patent number: 4733799
    Abstract: An improved water gun toy or like device having a cylindrical body substantially closed at one end thereof to form a body chamber, a piston of cylindrical shape slidably and sealably positioned within said body chamber for axial movement therein, the piston and the body including the closed end thereof defining a liquid receiving reservoir of substantial capacity. The piston is slidable from one axial end of the body chamber to the other axial end thereof. A conduit in fluid communication at one end with the reservoir and having an outlet orifice on the opposite downstream end thereof from which liquid can be ejected and manual actuating device operatively connected to the piston and operable to cause axial movement of the piston from one axial end of the chamber to the other axial end thereof is provided whereby substantially all of the liquid in said reservoir may be ejected through the orifice in a continuous stream.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: March 29, 1988
    Inventor: Darrell D. Wiskur
  • Patent number: 4038776
    Abstract: A rocket toy has a unitary cylindrical body with outwardly projecting fins and a partition wall across the interior near the front end. A tapered cylindrical lip projecting from the body front end receives one of two nose cones. The first, a parachute-receiving nose cone, fits loosely on the tapered lip and is held in place during forward flight by the air resistance of a forwardly facing brake surface on the nose cone exterior. A parachute, furled within the nose cone, has cords attached by an elastic band to the rocket body. After launch, as the rocket toy slows down near the apex of its trajectory, the air resistance is insufficient to hold on the nose cone. The nose cone drops away, permitting the parachute to deploy. The second nose cone fits tightly on the tapered lip and remains in place throughout the entire flight. The rocket toy is launched by the compression of air within a pair of telescoped tubes, one of which is connected to the rocket body cylindrical rear end during launch.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: August 2, 1977
    Assignee: A. J. Filipeli Co., Inc.
    Inventor: James Michael Filipeli
  • Patent number: 3965608
    Abstract: A manually operated, manually-powered, hand held suction device for capturing insects, solder, or other small objects by creating and then discharging a stored vacuum. A suction pulse is produced by initially creating a vacuum in an internal storage chamber of the suction device by using a manually operated piston pump, and subsequently creating an instantaneous suction into the muzzle or nozzle of the device and thence into the storage chamber by opening a trigger actuated shutter valve which lies in the barrel between the chamber and the atmosphere. The pump may include two check valves whereby repeated operation of the pump strengthens the stored vacuum. The object is sucked into the valve and toward the chamber where it is stopped by a screen. The object can then be ejected back through the muzzle by reversing the check valves or the direction of motion of the piston, pressurizing the chamber by means of the piston pump, and again pulling the trigger.
    Type: Grant
    Filed: May 1, 1974
    Date of Patent: June 29, 1976
    Inventor: Mark Schuman