Patents Represented by Attorney Geoffrey E. Dobbin
  • Patent number: 8307747
    Abstract: A non-reciprocating, self-engaging charging handle is disclosed. It comprises a spring biased forward latch mounted upon a sliding body with a protruding handle. The spring bias causes the latch to positively engage the firearm's bolt carrier group when the handle is brought forward into contact therewith. A secondary latching system secures the charging handle to the upper receiver when not in use and disengages automatically when and only when a user desires to operate the handle.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: November 13, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt, Brian L. Nakayama
  • Patent number: 8261649
    Abstract: The present invention is a charging handle for an automatic, bolt actuated rifle. The handle features a ratcheting retraction assist and blowback diversion structures.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: September 11, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Brian L. Nakayama, Eric S. Nakayama
  • Patent number: 8262248
    Abstract: Disclosed is a work light with two convertible configurations. The first configuration is a light mounted upon a stand with an extendable neck. The second is a flashlight. A third, intermediate configuration is presented when the neck is extended in the flashlight mode. The light head has a standard twist switch and a key interface with the body to maintain a lower portion of the head in a stationary position relative to the body when in the work light is in the flashlight configuration. The stand is a tripod with legs collapsible into a central body to form the flashlight handle, a movable stop being provided to support the legs when deployed and hold the legs, along with the body, when stowed in the flashlight configuration. A double linkage hinge is also provided the head and neck for allowing motion of the head relative the remainder of the work light.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: September 11, 2012
    Inventor: Elmer A. Wessel
  • Patent number: 8201489
    Abstract: The present invention is a gas system for a firearm comprising a hollow gas tube extending between a forward gas tap in a firearm's barrel and a rearward piston assembly to impinge upon and operate the firearm's bolt operating system. The system does not have a translation rod extending between the two components as in prior art systems nor does it have a rearward tap like others. As such, it balances cleanliness and weight reduction of the prior art systems and reduces moving parts.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: June 19, 2012
    Assignee: Magpul Industries Corp.
    Inventor: Justin Juarez
  • Patent number: 8166692
    Abstract: The present invention is a self-leveling follower for an ammunition magazine. Side extensions provide greater stability to the follower and aid in its self-leveling feature. The follower according to the present invention is also manufactured to facilitate removal from and insertion into the magazine casing when maintaining the magazine. Additional features provide greater utility by improving bolt-stop capacity and consistency of ammunition feed.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: May 1, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric S. Nakayama
  • Patent number: 8161861
    Abstract: The present invention is a battery assist devise to aid in the locking and unlocking of the bolt in a long firearm. The battery assist devise attaches to the both catch button of the firearm and thereafter acts as an extension thereof. The battery assist device comprises an interface head and attachment plate, which secure about the bolt catch button, and a curved lever that protrudes from the head and projects around the underside of the firearm, through the trigger guard area, until it projects slightly on the opposite side of the firearm. The lever then is capable of ambidextrous operation.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: April 24, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Travis D. Haley, Eric C. Burt
  • Patent number: 8069601
    Abstract: The present invention is an ammunition magazine, preferably made of a glass fiber reinforced polymer, utilizing a structurally enhancing ridge, angular guide rails and a follower made to interface with said guide rails to reduce wobble. The preferred embodiment also features a protective cover that distributes forces from the spring to more structurally sound areas of the magazine, thus reducing feed end splay, and an ammunition indication system comprised of at least one window and a noticeable marker on the follower spring. The follower and magazine casing are also designed to interface to prevent the follower from popping out of the feed end and the floor plate of the magazine utilizes a locking plate and sliding relationship between the floor plate, locking plate and magazine to secure the floor plate onto the magazine casing. The cover features built in tools for, among other things, unloading and disassembling the magazine.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: December 6, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Patent number: 8061071
    Abstract: The present invention is a high capacity, non-drum magazine. The high capacity magazine comprises a broad general storage area capable of holding four staggered stacks of ammunition, a unified follower on a spring system biasing the follower and associated ammunition, a central partition a barrier separating two dual staggered round stacks and around which the follower will pass, and a transition area between the feed end of the magazine and the storage area. The spring may be a composite spring system, made of two springs joined in series, or a single, variable constant, spring.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: November 22, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Michael Morgan, Eric C. Burt, Eric S. Nakayama
  • Patent number: 8029007
    Abstract: The present invention is a passenger assembly for a stroller and is adaptable to almost any stroller and is capable of practice in numerous embodiments. The preferred embodiment features a chassis mounted platform with adjustable mounting arms. A mounting mechanism is located at the terminus of each arm and is attachable and removable from the stroller frame with the passenger assembly. A number of potential mounting mechanisms are disclosed. An extension handle is provided to allow users greater control of the stroller from a distance further than normal, as the assembly occupies the position proximate the stroller, where the user ordinarily stands. Modules are capable of addition to the assembly, such as a seat or basket, or a stow strap for securement of the assembly when not in use.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: October 4, 2011
    Inventors: Andrew D. Jones, Robin Peng, Ralph Sonderegger, Bart Peterson, Kevin Kinkade
  • Patent number: 8014136
    Abstract: One embodiment of the present invention relates to a modular computer system for use in residential, recreational, and commercial regions. The system is a computer system disposed within an existing outlet receptacle housing. The receptacle includes a conventional NEMA standard OS1 and OS2 type electrical housing and electrical line designed to accommodate a residential or commercial light switch, electrical outlet, etc. The computer system is electrically coupled to the electrical line disposed within the housing of the receptacle and includes a mechanically extendable expansion bus configured to mechanically support and data inter-couple a set of modules for providing computer functionality. The expansion bus can be extended to access the modules or collapsed within the receptacle so as to be externally visually obscured by an interface module or cover. The computer system is configured to dynamically detect and data couple with other modular computer systems in a particular region.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: September 6, 2011
    Assignee: Jupiter IP, LLC
    Inventor: Robin Peng
  • Patent number: 8006425
    Abstract: The present invention is a spring-biased folding firearm that stows compactly and safely. The firearm has three main components: a stock, a receiver and a grip/magazine combination. In folding, the stock folds over the receiver, sandwiching the grip/magazine between the components. When folded, the magazine over-inserts into the grip housing, allowing the stock to clear and providing additional safety when stowed by isolating the ammunition feed. A buttplate latches over the open joint to contain the unit and further secure it. When stowed, the bolt is disengaged from the ammunition feed supply, preventing accidental firing, so a loaded round can be safely carried in the chamber—allowing for immediate use of the firearm upon opening. The weapon is deployed through single-handed actuation and is spring-assisted into firing position. Currently the firearm uses readily available aftermarket parts for easier replacement if necessary and does contain hardware for mounting accessories.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: August 30, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Eric C. Burt, Richard M. Fitzpatrick, Michael T. Mayberry
  • Patent number: 8001881
    Abstract: A firing rate reduction system utilizing a slideable, independent sear disconnector includes a bolt carrier having a straight channel terminating at the rear end of the bolt carrier, for disconnector movement within the bolt carrier. Detents are provided to arrest movement at forward and rearward positions. The force of inertia moves the independent disconnector into these extreme positions and creates a delay in firing time as additional time is required for the independent disconnector to reach final position.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: August 23, 2011
    Inventor: Ferdinand S. Sy
  • Patent number: D643497
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: August 16, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Eric C. Burt, Michael Mayberry, Travis D. Haley, Bran Abbot, Michael Morgan
  • Patent number: D644293
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: August 30, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama
  • Patent number: D645113
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: September 13, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama
  • Patent number: D648413
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: November 8, 2011
    Assignee: Magpul Industries Corp.
    Inventors: Michael T. Mayberry, Richard M. Fitzpatrick, Eric C. Burt
  • Patent number: D652468
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: January 17, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Eric C. Burt, Travis D. Haley
  • Patent number: D662167
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: June 19, 2012
    Assignee: Kinetic Research Group, Ltd.
    Inventor: Justin R. Juarez
  • Patent number: D662430
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: June 26, 2012
    Inventor: Mark J. Hagmann
  • Patent number: D667915
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: September 25, 2012
    Assignee: Magpul Industries Corp.
    Inventors: Brian L. Nakayama, Eric C. Burt