公开(公告)号：US11662186B2

公开(公告)日：2023-05-30

申请号：US17309914

申请日：2019-11-27

Applicant: The Secretary of State for Defence

Inventor： Samuel Brendan Dixon Cooke

IPC: F42B5/18 ,  F42B5/10 ,  F42B5/184

CPC classification number: F42B5/10 ,  F42B5/184

Abstract: A captive piston projectile (40) comprising a payload housing (43), a piston assembly attached to the payload housing (43), and actuation means (46) for urging the piston assembly from a stowed configuration to an extended configuration. The piston assembly comprises a tubular piston member (41) attached around the periphery of the payload housing (43), the attachment optionally being in the form of a circumferential groove (42) within which the piston member (41) can slide. This provides increased thrust whilst maintaining payload volume. Particularly suited to use with barrelled weapons, and also relates to a method of manufacture.

公开(公告)号：US20220113121A1

公开(公告)日：2022-04-14

申请号：US17309914

申请日：2019-11-27

Applicant: The Secretary of State for Defence

Inventor： Samuel Brendan Dixon Cooke

IPC: F42B5/10 ,  F42B5/184

Abstract: A captive piston projectile (40) comprising a payload housing (43), a piston assembly attached to the payload housing (43), and actuation means (46) for urging the piston assembly from a stowed configuration to an extended configuration. The piston assembly comprises a tubular piston member (41) attached around the periphery of the payload housing (43), the attachment optionally being in the form of a circumferential groove (42) within which the piston member (41) can slide. This provides increased thrust whilst maintaining payload volume. Particularly suited to use with barrelled weapons, and also relates to a method of manufacture.