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).

  • Patent number: 9157699
    Abstract: Disclosed is a D-ring for use in sling systems, in particular firearm slings, where quick detachment and consistent behavior of the sling are of particular importance. At least two swivel sockets are provided on opposite sides of the D-ring for ambidextrous use and slots are provided to restrict rotational movement of the attached swivels. The D-ring may be formed from a single toroid or a conglomeration of different toroidal forms.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: October 13, 2015
    Assignee: Magpul Industries Corp
    Inventors: Thomas Ward, Michael T. Mayberry, Richard M. Fitzpatrick
  • Publication number: 20150241152
    Abstract: The present invention is an ammunition magazine, preferably made of a 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: February 26, 2015
    Publication date: August 27, 2015
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Patent number: 8839543
    Abstract: The present invention is an ammunition magazine, preferably made of a 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: December 5, 2013
    Date of Patent: September 23, 2014
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Patent number: 8832986
    Abstract: The present invention is a quick detach swivel utilizing pawls to engage a ridge or trench in a socket. The pawls are biased outward by the spurs of two sliding buttons which cam the pawls in an upright and outward orientation. When the buttons are squeezed together, the cam lock is released and the pawls fall into the swivel frame, releasing the swivel body. When pressure on the buttons is released, the buttons return to their normal positions and catch the pawls, returning them to their upright and engaged position.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: September 16, 2014
    Assignee: Magpul Industries Corp.
    Inventors: Michael T. Mayberry, Richard M. Fitzpatrick
  • Patent number: 8800189
    Abstract: The present invention is a buffer tube assembly 2 upon which stock modules may be mounted as part of a modular stock system. The best mode buffer tube features a uniform cheek plate 10 with a track 9 disposed underneath the cheek plate 10 on either side. Rail track 8 is disposed on the underside of buffer tube module 2 and is divided in half by a longitudinal groove. Interface detents 5 are provided on the sides of buffer tube module 2. Both rail track 8 and detents 5 are provided for interface with adjustable length stock modules. Individual half-rails of the rail track 8 may be angled to improve interface performance with adjustable for length stock modules. A clip hole 13 is provided as a securement means with fixed length stock modules. The invention may also be practiced as a mounting assembly for those firearms (usually air projection type) that do not require a buffer area.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: August 12, 2014
    Assignee: Magpul Industries Corp
    Inventors: Richard M. Fitzpatrick, Stephen C. Hines
  • Publication number: 20140215878
    Abstract: The present invention is an ammunition magazine, preferably made of a 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 5, 2013
    Publication date: August 7, 2014
    Applicant: Magpul Industries Corp
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Publication number: 20140215767
    Abstract: Disclosed is a D-ring for use in sling systems, in particular firearm slings, where quick detachment and consistent behavior of the sling are of particular importance. At least two swivel sockets are provided on opposite sides of the D-ring for ambidextrous use and slots are provided to restrict rotational movement of the attached swivels. The D-ring may be formed from a single toroid or a conglomeration of different toroidal forms.
    Type: Application
    Filed: January 15, 2014
    Publication date: August 7, 2014
    Applicant: Magpul Industries Corp.
    Inventors: Thomas Ward, Michael T. Mayberry, Richard M. Fitzpatrick
  • Patent number: 8635796
    Abstract: The present invention is an ammunition magazine, preferably made of a 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: November 30, 2011
    Date of Patent: January 28, 2014
    Assignee: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • Publication number: 20130305582
    Abstract: The present invention is a quick detach swivel utilizing pawls to engage a ridge or trench in a socket. The pawls are biased outward by the spurs of two sliding buttons which cam the pawls in an upright and outward orientation. When the buttons are squeezed together, the cam lock is released and the pawls fall into the swivel frame, releasing the swivel body. When pressure on the buttons is released, the buttons return to their normal positions and catch the pawls, returning them to their upright and engaged position.
    Type: Application
    Filed: May 16, 2013
    Publication date: November 21, 2013
    Applicant: MAGPUL INDUSTRIES CORPORATION
    Inventors: Michael T. Mayberry, Richard M. Fitzpatrick
  • Patent number: 8544704
    Abstract: The disclosed invention is a threader for use with various modular tactical vest systems. The particular modular vest systems have a weaving interface with attachable storage modules. A strap on a module is attached to the threader and the threader is woven through the support web on the vest. As the threader is pulled through the support web, the module is secured to the vest. Two embodiments for attaching the strap to the threader are disclosed.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: October 1, 2013
    Assignee: Magpul Industries Corp
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric S. Nakayama
  • Patent number: 8539871
    Abstract: A non-reciprocating, self-engaging charging handle is disclosed. It comprises a forward latch mounted upon a sliding body with a protruding handle. The latch positively engages 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. The charging handle's secondary latching system is also claimed as a stand-alone system.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: September 24, 2013
    Assignee: Magpul Industries Corp
    Inventors: Eric C. Burt, Brian L. Nakayama, Richard M. Fitzpatrick, Michael T. Mayberry
  • Publication number: 20130228065
    Abstract: A non-reciprocating, self-engaging charging handle is disclosed. It comprises a forward latch mounted upon a sliding body with a protruding handle. The latch positively engages 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. The charging handle's secondary latching system is also claimed as a stand-alone system.
    Type: Application
    Filed: November 13, 2012
    Publication date: September 5, 2013
    Applicant: MAGPUL INDUSTRIES CORP.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Eric C. Burt, Brian L. Nakayama
  • Publication number: 20130180146
    Abstract: A new interface for a magazine follower and floor plate is used to provide greater stability to the round stack and a more sturdy system overall. The floor plate is designed with two opposite legs, the rear being shorter than the front leg so as to facilitate travel throughout the magazine and clearing of accumulated dirt and debris. The floor plate, in one embodiment, utilizes a lock plate that is shaped and sized to become a shoe for the compressed spring and associated follower. In an alternate embodiment, the floor plate itself serves the purpose and, with provided teeth, directly fastens to the magazine casing at notches manufactured in the magazine wall for that purpose. Other enhancements to the magazine include at least one matrix of divots to provide a paint surface, an over-insertion stop and a lower rear geometry to aid in clearing debris and grit.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 18, 2013
    Applicant: Magpul Industries Corp.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama
  • Patent number: 8484882
    Abstract: The present invention is a rail mounted back-up sight with at least one, but preferred two, illumination apparatuses mounted thereon. The back-up sight features a sight housing that is configured to selectively alternate between a stowed and a spring-biased deployed position. Any type of illumination apparatus may be used, but the preferred apparatus is a flashlight, mounted upon wither side of a sight base. Either a front or a rear sight may be utilized as could different types of illumination apparatuses.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 16, 2013
    Assignee: Magpul Industries Corp.
    Inventors: Travis D. Haley, Eric C. Burt, Richard M. Fitzpatrick, Michael T. Mayberry
  • Publication number: 20130047386
    Abstract: The present invention is an attachment system for modular stowage units. The system features a rail matrix utilized with a clasp system. Each rail component of the matrix features either a raised bridge or a loop onto which the clasp system attaches and may be a modular rail. Clasp designs include small and large bladed versions where the blade is designed to interface with an underside of a loop and secure an object to the rail matrix.
    Type: Application
    Filed: February 17, 2012
    Publication date: February 28, 2013
    Applicant: MAGPUL INDUSTRIES CORP.
    Inventors: Grady Barfoot, Richard M. Fitzpatrick, Michael T. Mayberry
  • Publication number: 20120317857
    Abstract: The present invention is an ammunition magazine, preferably made of a 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: November 30, 2011
    Publication date: December 20, 2012
    Applicant: MAGPUL INDUSTRIES CORP.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Brian L. Nakayama, Eric C. Burt
  • 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
  • Publication number: 20120180368
    Abstract: The present invention is a rail mounted back-up sight with at least one, but preferred two, illumination apparatuses mounted thereon. The back-up sight features a sight housing that is configured to selectively alternate between a stowed and a spring-biased deployed position. Any type of illumination apparatus may be used, but the preferred apparatus is a flashlight, mounted upon wither side of a sight base. Either a front or a rear sight may be utilized as could different types of illumination apparatuses.
    Type: Application
    Filed: December 14, 2010
    Publication date: July 19, 2012
    Applicant: Magpul Industries Corp.
    Inventors: Travis D. Haley, Eric C. Burt, Richard M. Fitzpatrick, Michael T. Maybery
  • Patent number: D735832
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: August 4, 2015
    Assignee: MAGPUL INDUSTRIES CORP.
    Inventors: Richard M. Fitzpatrick, Michael T. Mayberry, Thomas Ward