Patents by Inventor Yiauguo Gan
Yiauguo Gan 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: 7686004Abstract: A gun device includes a housing having a gas supplying passage communicating with an inner chamber of the housing for coupling to a pressurized gas supplying source, a feed tube attached to the housing for feeding a bullet into the housing, a tubular member rotatably received in the housing and having an opening communicated with a bore of the tubular member for aligning with the feed tube and for selectively receiving the bullet into the bore of the tubular member. The opening of the tubular member is movable or disengageable from the feed tube when the tubular member is rotated relative to the housing for preventing the other bullet from entering into the housing.Type: GrantFiled: August 15, 2006Date of Patent: March 30, 2010Inventor: Yiauguo Gan
-
Patent number: 7597097Abstract: A gas gun having a pneumatic driving device comprises an upper housing including a loading device disposed therein, the loading device having a projectile member and a tubular member; a hand grip mounted on and extending from the lower side of the upper housing; wherein the tubular member includes a piston arranged therein, such that the pneumatic air can be compressed by the piston to strongly propel paintballs.Type: GrantFiled: February 15, 2008Date of Patent: October 6, 2009Inventor: Yiauguo Gan
-
Patent number: 7597096Abstract: A gas gun having an air driving device comprises an upper housing including a loading device disposed therein, the loading device having a projectile member and a tubular member; a hand grip mounted on and extending from the lower side of the upper housing; wherein the tubular member includes a piston and a resilient element, both of which are arranged in the tubular member, such that the piston can be pushed by the resilient element to compress pneumatic air indirectly, thus strongly and quickly propelling paintballs.Type: GrantFiled: February 15, 2008Date of Patent: October 6, 2009Inventor: Yiauguo Gan
-
Patent number: 7594505Abstract: A gas gun having a pressure driving device comprises an upper housing having a loading device disposed therein, the loading device having a tubular member and a projectile member; a hand grip mounted on and extending from the lower side of the upper housing; wherein between the tubular member and the projectile member is mounted an air valve so as to be moved forward and rearward by pneumatic air to control a projectile channel of the projectile member and an internal passage of the tubular member to be opened and closed.Type: GrantFiled: February 15, 2008Date of Patent: September 29, 2009Inventor: Yiauguo Gan
-
Patent number: 7533663Abstract: A gun device includes a housing having a gas supplying passage communicating with a gas storage chamber of the housing for coupling to a pressurized gas supplying source, a feed tube for feeding a bullet into the housing. The pressurized gas supplied into the gas storage chamber of the housing may all be used to fire the bullet. In addition, the pressurized gas supplied into a manifold of the housing may be used to move a cylinder and a piston and may also be recycled and used to fire the bullet such that the bullet may be fired or propelled with a greater quantity of the pressurized gas and thus may be fired or propelled for a longer distance, for economizing the pressurized gas.Type: GrantFiled: August 25, 2006Date of Patent: May 19, 2009Inventor: Yiauguo Gan
-
Publication number: 20080135031Abstract: A gas gun having a pneumatic driving device comprises an upper housing including a loading device disposed therein and having a tubular member and a projectile member therein, wherein the tubular member includes a piston arranged therein, such that the pneumatic air may be compressed by the piston, thus strongly propelling paintballs.Type: ApplicationFiled: February 15, 2008Publication date: June 12, 2008Inventor: Yiauguo Gan
-
Publication number: 20080127960Abstract: A gas gun having a pressure driving device comprises an upper housing including a loading device disposed therein and having a tubular member and a projectile member therein, wherein between the tubular member and the projectile member is mounted an air valve, such that the air valve may move forward and rearward on the basis of the flowing direction of the pneumatic air, thus controlling the projectile channel of the projectile member and the internal passage of the tubular member to be opened or closed.Type: ApplicationFiled: February 15, 2008Publication date: June 5, 2008Inventor: Yiauguo Gan
-
Publication number: 20080127959Abstract: A gas gun having an air driving device comprises an upper housing including a loading device disposed therein and having a tubular member and a projectile member therein, wherein the tubular member includes a piston and a resilient element, both of which are arranged therein, such that the piston may be pushed by the resilient element for compressing the pneumatic air indirectly, thus strongly and quickly propelling paintballs.Type: ApplicationFiled: February 15, 2008Publication date: June 5, 2008Inventor: Yiauguo Gan
-
Publication number: 20080047538Abstract: A gun device includes a housing having a gas supplying passage communicating with a gas storage chamber of the housing for coupling to a pressurized gas supplying source, a feed tube for feeding a bullet into the housing. The pressurized gas supplied into the gas storage chamber of the housing may all be used to fire the bullet. In addition, the pressurized gas supplied into a manifold of the housing may be used to move a cylinder and a piston and may also be recycled and used to fire the bullet such that the bullet may be fired or propelled with a greater quantity of the pressurized gas and thus may be fired or propelled for a longer distance, for economizing the pressurized gas.Type: ApplicationFiled: August 25, 2006Publication date: February 28, 2008Inventor: Yiauguo Gan
-
Publication number: 20080041353Abstract: A gun device includes a housing having a gas supplying passage communicating with an inner chamber of the housing for coupling to a pressurized gas supplying source, a feed tube attached to the housing for feeding a bullet into the housing, a tubular member rotatably received in the housing and having an opening communicated with a bore of the tubular member for aligning with the feed tube and for selectively receiving the bullet into the bore of the tubular member. The opening of the tubular member is movable or disengageable from the feed tube when the tubular member is rotated relative to the housing for preventing the other bullet from entering into the housing.Type: ApplicationFiled: August 15, 2006Publication date: February 21, 2008Inventor: Yiauguo Gan
-
Publication number: 20070163563Abstract: A compressed gas gun includes an upper housing having a barrel, a projectile feed tube for supplying projectiles into the barrel, a loading bolt for feeding the projectile and having an angled port for supplying pressure gas to propel or to fire the projectile. A lower housing includes a valve stem guide to form a high pressure storage chamber and to selectively supply the pressure gas to propel the projectile, a valve stem is slidably received,in the valve stem guide. A hammer is movable to actuate the valve stem, a link pin is secured to the hammer, and a spring biasing member may bias the loading bolt to resiliently engage with the projectile and to prevent the projectile from being cut or sheared inadvertently.Type: ApplicationFiled: January 19, 2006Publication date: July 19, 2007Inventor: Yiauguo Gan
-
Publication number: 20070163561Abstract: A compressed gas gun includes an upper housing having a barrel for receiving projectiles to be fired and having a high pressure storage chamber, a loading bolt slidably engaged in the upper housing and movable to feed the projectile forward to a firing position. A pipe is attached to the loading bolt and includes an inner space, a conduit having a pathway, and one or more apertures for communicating the inner space with the barrel. An enclosing device may be used for selectively enclosing a passage of the loading bolt to allow the pressure gas to fill the pipe and the high pressure storage chamber of the barrel, and for selectively disengaging from the loading bolt and enclosing the conduit to allow the pressure gas to fire the projectile.Type: ApplicationFiled: January 19, 2006Publication date: July 19, 2007Inventor: Yiauguo Gan
-
Publication number: 20070163564Abstract: A compressed gas gun includes an upper housing having a barrel for receiving projectiles to be fired and having a high pressure storage chamber, a loading bolt slidably engaged in the upper housing and movable to feed the projectile forward to a firing position. A pipe is attached to the loading bolt and includes an inner space, a conduit having a pathway, and one or more apertures for communicating the inner space with the barrel. An enclosing device may be used for selectively enclosing a passage of the loading bolt to allow the pressure gas to fill the pipe and the high pressure storage chamber of the barrel, and for selectively disengaging from the loading bolt and enclosing the conduit to allow the pressure gas to fire the projectile.Type: ApplicationFiled: January 19, 2006Publication date: July 19, 2007Inventor: Yiauguo Gan
-
Publication number: 20070163562Abstract: A compressed gas gun includes an upper housing having a barrel for receiving projectiles to be fired and having a high pressure storage chamber, a loading bolt slidably engaged in the upper housing and movable to feed the projectile forward to a firing position. A pipe is attached to the loading bolt and includes an inner space, a conduit having a pathway, and one or more apertures for communicating the inner space with the barrel. An enclosing device may be used for selectively enclosing a passage of the loading bolt to allow the pressure gas to fill the pipe and the high pressure storage chamber of the barrel, and for selectively disengaging from the loading bolt and enclosing the conduit to allow the pressure gas to fire the projectile.Type: ApplicationFiled: January 19, 2006Publication date: July 19, 2007Inventor: Yiauguo Gan
-
Publication number: 20060254571Abstract: A compressed gas gun device includes a housing having a gun barrel and a handle portion, and a projectile feeding tube having an inclined surface. A receptacle may receive projectiles and includes a pipe engageable into the projectile feeding tube, a sleeve is engaged between the pipe and the projectile feeding tube and includes an inclined surface for engaging with the inclined surface of the projectile feeding tube, and for allowing the sleeve to be deeply engaged into the projectile feeding tube by a sliding engagement of the inclined surfaces of the projectile feeding tube and the sleeve. A control ferrule may detachably secure the pipe of the receptacle to the projectile feeding tube.Type: ApplicationFiled: February 22, 2005Publication date: November 16, 2006Inventor: Yiauguo Gan
-
Publication number: 20060236991Abstract: A compressed gas gun device includes a housing having a gun barrel and a handle portion, a receptacle for receiving projectiles, and a coupling device coupled to the housing for coupling to various gas containers which may supply compressed gas into the housing and which includes a valve rod for opening the gas container. The coupling device includes a casing having a longitudinal bore for coupling between the housing and the gas container, and having an orifice to receive a valve stem. An actuating shank is disposed within the casing, and includes one end for engaging with the valve stem, and the other end for depressing the valve rod into the gas container to selectively open the gas container.Type: ApplicationFiled: February 22, 2005Publication date: October 26, 2006Inventor: Yiauguo Gan
-
Publication number: 20060236992Abstract: A compressed gas gun includes a housing having a gun barrel and a handle portion, and a projectile feeding tube having a bore and one or more slits to form one or more spring blades and having an outer thread. A receptacle may receive projectiles and includes a pipe engageable into the projectile feeding tube, and a control ferrule includes an inner thread for threading with the outer thread of the projectile feeding tube, and for detachably securing the pipe of the receptacle to the projectile feeding tube, and for allowing the pipes of the receptacles of various sizes or outer diameters may be changeably engaged into the projectile feeding tube, and selectively secured to the projectile feeding tube.Type: ApplicationFiled: February 22, 2005Publication date: October 26, 2006Inventor: Yiauguo Gan