Ethan M Lessard

US Patent:

20090071053, Mar 19, 2009

Filed:

Aug 29, 2008

Appl. No.:

12/201850

Inventors:

Adrian J. O. Thomele - Eckernforde, DE
Thomas U. Metzger - Eckernforde, DE
Ethan M. Lessard - East Kingston NH, US

International Classification:

F41A 11/00
F41C 23/00
F41A 3/00
F41A 99/00
F41A 17/64
F41G 1/06

US Classification:

42 101, 42 7101, 42 14, 42 7008, 42111

Abstract:

In one aspect, a firearm system allows multiple modular firearm configurations, thereby providing significant customizability of the firearm by the user. All of the components necessary to fire the weapon are carried on a common receiver assembly. Interchangeable slide assemblies and handgrip modules can be detachably connected to the common receiver to substitute one firearm size, handgrip circumference, and/or munitions caliber for another. For example, the handgrip module can be substituted so as to change the size of the firearm and/or the slide assembly can be changed for purposes of changing the caliber of the firearm. In another aspect, an improved firing pin safety, which is capable of use in a one-piece machined slide, and which is additionally capable of being manufactured as a stamped sheet metal part, is provided.

US Patent:

20190154384, May 23, 2019

Filed:

Nov 2, 2018

Appl. No.:

16/179497

Inventors:

- Portsmouth NH, US
Ethan Lessard - East Kingston NH, US
Brian McDonald - Portsmouth NH, US

International Classification:

F41A 21/30
F41A 21/34

Abstract:

A modular suppressor kit includes a modular suppressor and suppressor tool. The modular suppressor includes a barrel attachment portion that has a central passage. The barrel attachment portion is configured to attach to a firearm barrel. The modular suppressor includes a cap portion that has a central passage. The modular suppressor includes a body portion that has an internal baffle structure and an expansion chamber. The body portion is attachable to, and separable from, the barrel attachment portion and the cap portion. The body portion defines a central passage that is alignable with the central passage of the barrel attachment portion and the central passage of the cap portion. The suppressor tool has an engagement feature for engaging with at least one of the barrel attachment portion, cap portion, and body portion.

US Patent:

20190072351, Mar 7, 2019

Filed:

Jun 28, 2018

Appl. No.:

16/022082

Inventors:

Kevin Brittingham - Portsmouth NH, US
Ethan Lessard - Portsmouth NH, US
Brian McDonald - Portsmouth NH, US

Assignee:

Q, LLC - Portsmouth NH

International Classification:

F41A 21/30
F41A 21/34

Abstract:

A modular suppressor kit includes a modular suppressor and suppressor tool. The modular suppressor includes a barrel attachment portion that has a central passage. The barrel attachment portion is configured to attach to a firearm barrel. The modular suppressor includes a cap portion that has a central passage. The modular suppressor includes a body portion that has an internal baffle structure and an expansion chamber. The body portion is attachable to, and separable from, the barrel attachment portion and the cap portion. The body portion defines a central passage that is alignable with the central passage of the barrel attachment portion and the central passage of the cap portion. The suppressor tool has an engagement feature for engaging with at least one of the barrel attachment portion, cap portion, and body portion.

US Patent:

20180202742, Jul 19, 2018

Filed:

Jun 22, 2017

Appl. No.:

15/630349

Inventors:

- Portsmouth NH, US
Ethan Lessard - East Kingston NH, US
Brian McDonald - Portsmouth NH, US

International Classification:

F41A 21/30
F41A 21/34

Abstract:

A modular suppressor kit includes a modular suppressor and suppressor tool. The modular suppressor includes a barrel attachment portion that has a central passage. The barrel attachment portion is configured to attach to a firearm barrel. The modular suppressor includes a cap portion that has a central passage. The modular suppressor includes a body portion that has an internal baffle structure and an expansion chamber. The body portion is attachable to, and separable from, the barrel attachment portion and the cap portion. The body portion defines a central passage that is alignable with the central passage of the barrel attachment portion and the central passage of the cap portion. The suppressor tool has an engagement feature for engaging with at least one of the barrel attachment portion, cap portion, and body portion.

US Patent:

20180195823, Jul 12, 2018

Filed:

Mar 28, 2017

Appl. No.:

15/471096

Inventors:

- Portsmouth NH, US
Ethan Lessard - East Kingston NH, US
Brian McDonald - Portsmouth NH, US

International Classification:

F41A 19/30
F41A 19/31
F41A 3/22
F41A 19/10
F41A 3/66

Abstract:

The present disclosure relates to a firing mechanism for a firearm, wherein the firing mechanism includes: a housing having a central bore, a cam surface, and a striker sear slot; a striker sear pivotally connected to the housing and positioned within the striker sear slot, the striker sear having a striker head engagement surface; and a striker head movably positioned within the central bore, the striker head having a striker sear engagement surface configured to interface with the striker head engagement surface of the striker sear.

US Patent:

20160202013, Jul 14, 2016

Filed:

Jan 8, 2016

Appl. No.:

14/991545

Inventors:

- Newington NH, US
Ethan Lessard - East Kingston NH, US

Assignee:

Sig Sauer, Inc. - Newington NH

International Classification:

F41A 21/32
F41A 21/30
F41A 21/36

Abstract:

An accessory mount includes a barrel connector and multiple accessory connectors. The barrel connector removably assembles the accessory mount to the barrel of the firearm in axial alignment with the firing axis of the firearm. The accessory mount includes one or more of the accessory connectors to securely and removably assemble accessories to thereto. The accessory connectors include axial alignment features to axially align accessories with the firing axis and/or rotational alignment features to align the accessory alignment with the firing axis. Accessory connectors also include that enable an accessory to be securely assembled to the accessory mount in different rotational orientations.

US Patent:

20150323275, Nov 12, 2015

Filed:

Dec 31, 2014

Appl. No.:

14/587136

Inventors:

- Newington NH, US
Ethan Lessard - East Kingston NH, US

Assignee:

Sig Sauer, Inc. - Newington NH

International Classification:

F41A 21/30

Abstract:

A sound suppressor for a firearm is disclosed. In accordance with some embodiments, the disclosed sound suppressor may include a thread and taper arrangement and a latching mechanism configured, for example, to secure the sound suppressor to a flash suppressor and/or the muzzle of a host firearm. Such features can help, in accordance with some embodiments, to prevent or otherwise reduce the opportunity for the sound suppressor to inadvertently back off of the host weapon during firing. Also, the disclosed sound suppressor may be configured, in accordance with some embodiments, such that application thereto of a wrench or other suitable torquing device automatically disengages the latching mechanism. In some instances, this may allow an operator to apply torque to rotate the sound suppressor while simultaneously disengaging the locking/retention feature. The mechanical advantage provided by the wrench can help to break fused areas resulting from copper and/or carbon fouling.

US Patent:

20150308775, Oct 29, 2015

Filed:

Aug 21, 2014

Appl. No.:

14/464862

Inventors:

- Exeter NH, US
Ethan Lessard - East Kingston NH, US

International Classification:

F41A 21/34

Abstract:

A muzzle flash suppressor is disclosed. In accordance with some embodiments, the disclosed flash suppressor includes a plurality of prongs having inner surfaces which taper along their length, providing angled expansion of the primary bore of the flash suppressor in the direction of projectile travel. The inner prong surfaces located along the gas flow path angle outwardly, a multi-radius surface is formed between each pair of neighboring prongs, and chamfers and radii are provided at the prong ends. Some embodiments provide for balanced and gradual gas expansion axially and/or radially along the projectile path, thereby allowing muzzle gases to expand/bleed off in a substantially laminar pattern. In some cases, this reduces secondary ignition of muzzle gases and the ambient air, thereby reducing muzzle flash. Also, some embodiments provide for easy clearance or correction of muzzle obstructions, thereby protecting against damage to the flash suppressor and host weapon.