Joseph C Zajk, 85Prescott, AZ

2017018, Jun 29, 2017

Dec 22, 2016

15/388996

- Southport CT, US
Joseph J. Zajk - Prescott AZ, US

F41A 5/06
F41A 21/00
F41A 5/04

A variable barrel camming system for a firearm includes a linearly reciprocating slide supported by a frame and a barrel removably coupled to the slide for movement therewith. A cam slot on the barrel slideably engages a cam pin mounted transversely in the frame. The slot includes a cam track surface having multiple angles and contours designed to control the motion and orientation of the barrel. When the firearm is discharged, the slide and barrel initially move rearward together under recoil forces generated. The pin slides forward in the slot over the cam track surface which is configured to rotate and uncouple the barrel from the slide which continues rearward alone. The cam track surface has a varying cam profile selected to gradually dissipate the kinetic energy of the barrel/slide unit in a controlled manner, thereby reducing the felt recoil imparted to a user compared to conventional cam systems.

2017018, Jun 29, 2017

Dec 28, 2016

15/392161

- Southport CT, US
Joseph J. Zajk - Prescott AZ, US

F41A 19/15
F41A 19/12
F41A 19/10
F41A 19/30

A firearm comprises a frame and firing control housing insert detachably mounted in the frame. A rear securement feature includes a locking slot formed in the rear wall of the insert engaging a locking protrusion formed in the rear wall of the frame which retains the rear portion of the insert in the frame. A front securement feature includes a rotatable pin inserted through holes in the insert front portion and frame. A radial retention protrusion on the pin is interposed between the insert and frame defining an interlock feature. The pin is rotatable into a first position wherein the protrusion passes through a complementary configured frame aperture allowing the pin to be removed, and a second position wherein the protrusion is not aligned with the aperture to engage the frame and prevent pin removal.

2015029, Oct 15, 2015

Apr 13, 2015

14/684932

- Southport CT, US
Joseph J. Zajk - Prescott AZ, US
Sam Vavro - Dacono CO, US

F41A 17/56
F41A 19/12
F41A 19/29
F41A 19/10

A striker-fired firearm in one embodiment includes a trigger assembly including a trigger and trigger bar supported by a frame, a rotatable sear operable to hold a spring-biased striker in a cocked ready-to-fire position, and a rotatable sear blocker operable to prevent rotation of the sear. The trigger bar is operably linked to the sear and blocker such that pulling the trigger rotates the sear and blocker. When the blocker is in a blocking position, the blocker engages and prevents movement of the sear and release of the striker in the absence of a trigger pull. When the blocker is in a non-blocking position effectuated by pulling the trigger, the blocker disengages the sear which rotates and releases the striker to fire the firearm.

2014019, Jul 10, 2014

Jan 7, 2013

13/735651

- Southport CT, US
Joseph J. Zajk - Prescott AZ, US

Sturm, Ruger & Company, Inc - Southport CT

F41C 3/14

42 65, 29428

A revolver with light-weight firing control housing includes a cylinder frame supporting a rotatable cylinder defining a plurality of cartridge-receiving chambers and a firing control housing made of a non-metallic material. The firing control housing attaches to the cylinder frame and supports firing control mechanism components, such as a trigger and a pivotable hammer actuated by the trigger. In one embodiment, the firing control housing may be made of a polymer and the cylinder frame may be metal.