United Defense LP

Joel Martin

Timothy J Doering

Michael Loge

James G Vaske

A recoil brake isolation system for the hydraulic recoil brake cylinder of a large caliber gun, includes two sets of hydraulic valves disposed respectively within the inlet valve block and return valve block of the hydraulic cylinder, an orchestrated combination of which together block the flow of hydraulic fluid to or from the hydraulic cylinder during the recoil/counterrecoil cycle or upon failure of the hydraulic circuit. A method of hydraulically isolating a recoil brake cylinder of a large caliber gun for survivability and improved weapon performance and a gun incorporating such a system are also included.

Recoil brake isolation system

A dual action retention pawl for securing ammunition in a breech loading gun having a bore along a longitudinal axis of a barrel of the gun and a breech opening with a moveable breech block at a rear of the bore. The dual action retention pawl includes a base, a pawl arm, and an activation arm operably attached to the base. The pawl arm pivots to a retracted position in response to ammunition engaging the activation arm when the ammunition is loaded into the breech opening and returns to a retention position once the ammunition is loaded to retain the ammunition within the barrel of the gun. The pawl arm pivots to the retracted position in response to the breech block engaging the activation arm when the breech block is moved to close the breech opening.

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Golden Valley, MN, United States of America

Joel Martin