Sturm, Ruger & Company, Inc.

Hypertherm, Inc.

Jonathan Philip Mather

Peter J Twarog

Stephen Theodore Eickhoff

Benjamin K Parker

Adam Jay Taylor

Jesse A Roberts

Nicholas A Sanders

E Michael Shipulski

Shane M Bernier

David Jonathan Cook

Jonathan Barrett

Nathan Brown

Frank J Saunders

Matthias Downey

Matthew Scott Willson

Jay Jason

Adam Fitzpatrick

Jarod John Wendholt

Robert Earl Craig

John D Lear

David B Kangas

Zheng Duan

Jon W Lindsay

John Sobr

David L Bouthillier

Harshawardhan Jogdand

Clifford Glenn Darrow

Jeremy Beliveau

Ross Angus Smith

Liming Chen

Jeffrey Cornish

Boris Mandadzhiev

Andrew James Beland

Richard Joseph Simek

Geoffrey William Smith

Kenneth Bruce McLoud

Geoffrey W Smith

Shawn Laflamme

George Caccavaro

Eric Mitchell Callum

Mark J Gurney

Benjamin Keyes Parker

Jay L Jason

Michael E Shipulski

David Leo Bouthillier

forward closed breech position in battery with the barrel and rearward open breech position, a cockable hammer controlled by a trigger, and a bolt release mechanism operably interacting with the bolt. The mechanism may comprise a user-actuated release button and spring-biased disconnect lever coupled thereto and selectively engageable with the hammer. Upon firing, the bolt travels rearward under recoil contacting and partially rotating the disconnect lever to engage the hammer, while simultaneously engaging the hammer which holds the bolt rearward. Actuating the release button fully rotates the disconnect lever to disengage the hammer from the bolt which returns to its forward position via a recoil spring to reclose the breech. A dual interlock safety in one position provided by the release mechanism prevents pulling the trigger and in another position prevents actuating the release button.

Interrupted semi-automatic action for firearms

A firearm with safety mechanism in one embodiment includes a barrel supported by a housing, at least one cartridge-receiving chamber in communication with a bore of the barrel, and a rotatable hammer. The safety mechanism includes a biased safety component, which may be a blocking pin in one embodiment, mounted to and rotatable with the hammer. When the firearm is exposed to an abnormal impact force caused by bumping or dropping the firearm, the safety component changes position and interacts with a blocking feature on the hammer pivot pin to stop or delay the motion of the hammer in a manner which prevents discharging the firearm. The blocking feature may be a notch in one embodiment. Rotating the hammer between rearward cocked and forward firing positions alternatingly aligns or misaligns the blocking pin with the notch, respectively.

Safety mechanism for hammer-operated firearms

A barrel mounting system for a firearm includes a longitudinal axis, a receiver, and a barrel detachably coupled to the receiver by upper and lower barrel mounting features above and below the barrel bore centerline. The lower mounting feature may comprise a clamping block compressing a lower breech end portion of the barrel against the receiver. In one embodiment, a pair of lower securement fasteners extend through the clamping block and threadably engage the receiver to draw the block into engagement with the receiver. The upper mounting feature may comprise a securement fastener compressing an upper breech end portion of the barrel against the receiver. The upper and lower mounting features form a triangular bolting pattern and balance moment forces created by the compressive forces of coupling the barrel to receiver with the fasteners.

Free-floating barrel mounting system for firearm

A bolt for a bolt-action firearm in one embodiment is movably disposed in a receiver between forward closed breech and rearward open breech axial positions. The bolt includes an operating handle and plurality of bolt lugs arranged to selectively engage locking lugs in the firearm. The bolt is rotatable between locked and unlocked breech positions when in the closed breech position. The bolt body has a dimensionally reduced middle section with unique configuration adapted to allow the bolt to rotate when closed without interference from the magazine feed lips. Using this design, the bolt may include three bolt lugs in one embodiment for secure lockup and minimal angular rotation between the locked and unlocked breech positions. The bolt is usable with both single and double stack box type magazines with one of the bolt lugs operating to reliably strip cartridges from either type magazine.

Bolt for bolt action rifles

A firearm with manually operated bolt release includes a receiver defining a longitudinally-extending cavity, a barrel, and a bolt slideably mounted in the receiver for reciprocating axial movement between a forward closed breech position in battery with the barrel and a rearward open breech position. A recoil spring biases the bolt forward towards the closed breech position. A manually actuated bolt release is pivotably mounted in the firearm and movable between an engaged position and a disengaged position. The bolt release includes a locking portion configured to selectively engage a locking recess formed on the bolt for holding the bolt in the open breech position, and disengage the locking recess for releasing the bolt to reclose the breech. In one embodiment, the bolt may be automatically disengaged from the bolt release by retracting the bolt a second time.

Bolt release mechanism for firearm

An adjustable stock for a firearm includes a longitudinally-extending chassis supporting a receiver, a butt pad assembly adjustable in longitudinal position for varying the length of pull, and a cheek rest. The cheek rest is adjustable in longitudinal and vertical positions. A triple-acting locking mechanism having locked and unlocked positions is operable to simultaneously lock the butt pad assembly in longitudinal position and the cheek rest in both longitudinal and vertical positions. The locking mechanism may be a cam lever assembly in non-limiting examples having a pivotable cam lever operable to simultaneously unlock or lock the butt pad assembly and cheek rest, thereby providing a single point of operation for making all the foregoing stock adjustments.

Adjustable stock for firearm

Buttstock for firearm

Portion of a rifle

A trigger housing mounting system for a firearm includes a receiver having a mounting slot and cutouts which receive mounting tabs on the trigger housing. The trigger housing is slidable forward and rearward in the receiver between locked and unlocked positions. A spring-biased locking block is movably mounted on the trigger housing. During the mounting process, the locking block is movable between a non-blocking position and a blocking position which prevents removal of the trigger housing from the receiver. A related mounting method is disclosed.

Trigger housing mounting system for firearm

A swirl ring component of a contact start plasma arc torch is provided. The swirl ring component includes a hollow body formed of a front portion and a rear portion along a longitudinal axis and defining an exterior surface and an interior surface. The swirl ring component also includes one or more gas passageways extending from the exterior surface to the interior surface in the front portion of the hollow body and a resilient element disposed relative to the interior surface in the rear portion of the hollow body and configured to pass at least a pilot arc current to an electrode body. The swirl ring component further includes a shoulder portion configured to retain the resilient element in the hollow body.

Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes

A connector component is provided for assembly into a torch. The connector component comprises a body that includes a proximal end and a distal end disposed along a longitudinal axis. At least two thread regions are disposed radially about the longitudinal axis on a surface of the body near the proximal end. Each thread region includes at least two parallel threads disposed on the surface of the body. In addition, at least two smooth regions are each disposed radially about the longitudinal axis between a pair of thread regions on the surface of the body.

Thread connection for a torch system

Rifle

A nozzle for a plasma arc torch is provided. The nozzle includes a substantially hollow, elongated nozzle body capable of receiving an electrode, the body defining a longitudinal axis, a distal end, and a proximal end. The nozzle also includes a swirl sleeve attachable to an interior surface of the nozzle body, the swirl sleeve configured to impart a swirling motion to a gas introduced to the nozzle. The nozzle additionally includes a nozzle tip connected to the proximal end of the nozzle body, a nozzle shield, and an insulator configured to connect the nozzle tip and the nozzle shield to electrically insulate the nozzle shield and the nozzle tip from one another while transferring thermal energy therebetween.

High access consumables for a plasma arc cutting system

Growing community of inventors

Grafton, NH, United States of America

Jonathan Philip Mather