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US 4,381,712 AGranted
Ball-actuated tubular projectile
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorWilliam L. Black
Life of this patent
Estimating the term…
Abstract
An improved tubular projectile formed from a single piece body member hav a ball valve resiliently held in a closed position therein and a method of manufacture is disclosed.
Claims21
A tubular projectile having an axial bore, comprising:
- a body having;
- a tail portion having walls defining said axial bore;
- a nose portion having relatively thick walls with respect to the walls of said tail portion;
- a valve seat formed in said nose portion in said thick walls;
- an apertured spherical ball supported on said valve seat for rotation thereon;
- a washer contacting said spherical ball valve in opposing relationship to said valve seat;
- and
- a cannelure in the walls of said tail portion adjacent said washer for holding said ball valve in a predetermined position and for providing a seal therefor.
5 more elements
A method of making a projectile comprising:
- forming a tubular body having a thick walled nose portion adjoining a thin walled tail portion;
- shaping said thick walls at the junction of said nose and tail portions to form a spherically surfaced valve seat;
- placing an apertured spherical valve on said valve seat in a predetermined position;
- inserting a resilient washer in said tail portion to rest on said spherical valve;
- and
- producing a cannelure in said thin walled tail portion to reduce the axial bore thereof at a position adjacent said washer to compress said washer so as to secure said valve in said predetermined position.
3 more elements
Dependencies are inferred from the claim text.