Richard C Fitzpatrick

US Patent:

20210341241, Nov 4, 2021

Filed:

Jul 7, 2021

Appl. No.:

17/369608

Inventors:

- Austin TX, US
Michael T. Mayberry - Denver CO, US
Brian L. Nakayama - Arvada CO, US
Richard M. Fitzpatrick - West Lake Hills TX, US
Eric Nakayama - Broomfield CO, US
William Bradley Bennett - Lafayette CO, US

International Classification:

F41A 9/75
F41A 9/70
F41A 9/65

Abstract:

A magazine assembly for a firearm and a related method are disclosed. The assembly has a magazine housing defining a track, and a follower assembly. The magazine housing is configured to constrain a cartridge as the cartridge is moved within the magazine assembly such that majority of a proximal surface area of the cartridge does not contact the magazine housing, and a distal tip of the cartridge does not contact the magazine housing.

US Patent:

20200378704, Dec 3, 2020

Filed:

Mar 6, 2020

Appl. No.:

16/811835

Inventors:

- Austin TX, US
Michael T. Mayberry - Denver CO, US
Brian L. Nakayama - Arvada CO, US
Richard M. Fitzpatrick - West Lake Hills TX, US
Eric Nakayama - Broomfield CO, US
William Bradley Bennett - Lafayette CO, US

International Classification:

F41A 9/75
F41A 9/70
F41A 9/65

Abstract:

A magazine assembly for a firearm and a related method are disclosed. The assembly has a magazine housing defining a track, and a follower assembly. The magazine housing is configured to constrain a cartridge as the cartridge is moved within the magazine assembly such that majority of a proximal surface area of the cartridge does not contact the magazine housing, and a distal tip of the cartridge does not contact the magazine housing.

US Patent:

20190086172, Mar 21, 2019

Filed:

Nov 27, 2018

Appl. No.:

16/200978

Inventors:

- Austin TX, US
Michael T. Mayberry - Denver CO, US
Brian L. Nakayama - Arvada CO, US
Richard M. Fitzpatrick - West Lake Hills TX, US
Eric Nakayama - Broomfield CO, US
William Bradley Bennett - Lafayette CO, US

International Classification:

F41A 9/75
F41A 9/70
F41A 9/65

Abstract:

A magazine assembly for a firearm and a related method are disclosed. The assembly has a magazine housing defining a track, and a follower assembly. The magazine housing is configured to constrain a cartridge as the cartridge is moved within the magazine assembly such that majority of a proximal surface area of the cartridge does not contact the magazine housing, and a distal tip of the cartridge does not contact the magazine housing.

US Patent:

20170067706, Mar 9, 2017

Filed:

Nov 17, 2016

Appl. No.:

15/354492

Inventors:

- Austin TX, US
Michael T. Mayberry - Denver CO, US
Brian L. Nakayama - Arvada CO, US
Richard M. Fitzpatrick - West Lake Hills TX, US
Eric Nakayama - Broomfield CO, US
William Bradley Bennett - Lafayette CO, US

International Classification:

F41A 9/75
F41A 9/70
F41A 9/65

Abstract:

A magazine assembly for a firearm and a related method are disclosed. The assembly has a magazine housing defining a track, and a follower assembly. The magazine housing is configured to constrain a cartridge as the cartridge is moved within the magazine assembly such that majority of a proximal surface area of the cartridge does not contact the magazine housing, and a distal tip of the cartridge does not contact the magazine housing.

US Patent:

20160161206, Jun 9, 2016

Filed:

Nov 19, 2015

Appl. No.:

14/945925

Inventors:

- Louisville CO, US
Christopher F. Miller - Erie CO, US
Michael T. Mayberry - Denver CO, US
Nicholas Kielsmeier - Denver CO, US
Richard M. Fitzpatrick - West Lake Hills TX, US

International Classification:

F41A 35/02
F41C 23/16

Abstract:

A system and method for a user's appendages when firing a weapon is described. One embodiment includes a cover kit for a firearm handguard. The kit has a base and an insert. The base has a longitudinal axis, an upright axis, a transverse axis, a socket, an exterior surface, and an interior surface. The insert has an insert body and a plug. The socket has a movable engagement prong shaped to engage a wall surface of a handguard slot. The plug has a prong engagement surface shaped to engage the engagement prong. The plug is shaped to apply a force on the engagement prong such that a distal portion of the engagement prong is flexed more than a proximal portion of the engagement prong.

US Patent:

20160102931, Apr 14, 2016

Filed:

Oct 13, 2015

Appl. No.:

14/882151

Inventors:

- Louisville CO, US
Michael T. Mayberry - Denver CO, US
Brian L. Nakayama - Arvada CO, US
Richard M. Fitzpatrick - West Lake Hills TX, US
Eric Nakayama - Broomfield CO, US
William Bradley Bennett - Lafayette CO, US

International Classification:

F41A 9/75
F41A 9/70

Abstract:

A drum magazine assembly and methods are described. A drum assembly has a follower assembly, a drum body, a spring assembly, and a feed tower assembly. The follower assembly biases cartridges towards an exit of the feed tower assembly. The follower assembly has a plurality of dummy cartridges, the plurality of dummy cartridges having a leading dummy cartridge and a last dummy cartridge, and a plurality of links including a leading link and a last link. The last dummy cartridge rotates relative to the last link and the leading link, and the leading dummy cartridge has a bolt catch engagement feature.