Patents by Inventor Richard M. Fitzpatrick

Richard M. Fitzpatrick 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).

  • Publication number: 20100251590
    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: Application
    Filed: December 17, 2007
    Publication date: October 7, 2010
    Applicant: MAGPUL INDUSTRIES CORP
    Inventors: Richard M. Fitzpatrick, Michael Mayberry, Eric S. Nakayama
  • Patent number: 7798045
    Abstract: The present invention is an improved charging handle for a firearm. The handle is generally non-reciprocating and features a user activated forward assist. The major components are an actuator to provide charging function and upon which other components are mounted, a spring biased lever with a hook which biases downward so that the hook may interface a bolt carrier when the lever is activated, and a blade upon which handle structure is mounted. In the preferred embodiment, the handle is ambidextrous and features a spring detent to keep it in stowed position until the user desires use. The handle will only reciprocate when the lever is activated, which in turn requires intentional user action, thereby providing a relatively safer weapon to operate.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: September 21, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael Mayberry, Brian Nakayama, Eric Burt
  • Publication number: 20100205846
    Abstract: The present invention is a modular gunstock utilizing a two-piece mounting structure and a stock module. The structure comprises a weapon attachment, in the case of an AR15/M16 rifle a receiver extension tube, and a sleeve slidable over said attachment and containing mounting structure for the stock module. The disclosed stock module is adjustable for length and features a length pre-set system, a latch with independent dual-pawls and an integrated impact buffer, modular tailpiece, and storage. The sleeve also features a position selectable fixed cheek plate.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 19, 2010
    Applicant: MAGPUL INDUSTRIES CORP
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric S. Nakayama
  • Patent number: 7762018
    Abstract: The present invention is a modular gunstock utilizing a two-piece mounting structure and a stock module. The structure comprises a weapon attachment, in the case of an AR15/M16 rifle a receiver extension tube, and a sleeve slidable over said attachment and containing mounting structure for the stock module. The disclosed stock module is adjustable for length and features a length pre-set system, a latch with independent dual-pawls and an integrated impact buffer, modular tailpiece, and storage. The sleeve also features a position selectable fixed cheek plate.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: July 27, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric S. Nakayama, Brian L. Nakayama
  • Publication number: 20100139144
    Abstract: The present invention is a modular handgrip for rifles and other long guns. The handgrip features a base with a locking dovetail rail on a first side and a second opposite side configured to receive a rail. Back strap additions are provided capable of receiving the rail on the body, which are customizable to a user's preferences while fore straps are provided with rails in a similar manner. Also provided is a storage compartment inside the main body, accessible from a bottom of the grip. As such, an organization, such as an armory, can provide a number of customizable options for handgrips while only stocking a basic grip and a number of optional modules at lower unit and storage costs. Of particular note is a modular fore strap design with an integrated trigger guard.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 10, 2010
    Applicant: MAGPUL INDUSTRIES, CORP.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry
  • Publication number: 20100126053
    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: Application
    Filed: July 17, 2009
    Publication date: May 27, 2010
    Applicant: MAGPUL INDUSTRIES CORP.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Michael Morgan, Eric C. Burt, Eric S. Nakayama
  • Publication number: 20100071244
    Abstract: The present invention is a modular handgrip for rifles and other long guns. The handgrip features a base with a locking dovetail rail on a first side and a second opposite side configured to receive a rail. Back strap additions are provided capable of receiving the rail on the body, which are customizable to a user's preferences while fore straps are provided with rails in a similar manner. Also provided is a storage compartment inside the main body, accessible from a bottom of the grip. As such, an organization, such as an armory, can provide a number of customizable options for handgrips while only stocking a basic grip and a number of optional modules at lower unit and storage costs. Of particular note is a modular fore strap design with an integrated trigger guard.
    Type: Application
    Filed: November 30, 2009
    Publication date: March 25, 2010
    Applicant: MAGPUL INDUSTRIES, CORP.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry
  • Patent number: 7647719
    Abstract: The present invention is a replacement gunstock assembly for rifles. The assembly comprises a stock body with a uniform mounting structure and one of a series of adapters made to accept the mounting structure and then mount, in turn, on a given rifle platform. Also disclosed is attachment structure for holding the stock body and adapter together, specifically a pair of plates and a set of bores in the modules through which a pair of bolts pass and other interfacing surface geometry.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: January 19, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael Mayberry
  • Patent number: 7621063
    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: February 9, 2006
    Date of Patent: November 24, 2009
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric S. Nakayama
  • Publication number: 20090277066
    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: Application
    Filed: April 7, 2009
    Publication date: November 12, 2009
    Applicant: MAGPUL INDUSTRIES CORP
    Inventors: Eric C. Burt, Richard M. Fitzpatrick, Michael T. Mayberry
  • Patent number: D614719
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: April 27, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Nick Booras, Drake Clark
  • Patent number: D614720
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: April 27, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Nick Booras, Drake Clark
  • Patent number: D614721
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: April 27, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Nick Booras, Brian L. Nakayama, Eric S. Nakayama, Justin Juarez
  • Patent number: D615143
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: May 4, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama
  • Patent number: D615144
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: May 4, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Michael T. Mayberry, Richard M. Fitzpatrick, Eric C. Burt
  • Patent number: D616057
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: May 18, 2010
    Assignee: Magpul Industries, Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Nick Booras, Drake Clark
  • Patent number: D620544
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: July 27, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Nick Booras, Drake Clark, Brian L. Nakayama
  • Patent number: D620545
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: July 27, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Nick Booras, Drake Clark, Brian L. Nakayama
  • Patent number: D620546
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: July 27, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt
  • Patent number: D622802
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: August 31, 2010
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt