Back to results
US 4,068,590 AGranted
Means for controlled fragmentation
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorJohn Pearson
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a fragmentation device which upon fragmenting duces uniform sized fragments of a predetermined shape and mass. The device is useful in antipersonnel and antimateriel systems which require uniformly sized fragments and where impact patterns having a fairly uniform distribution and predictable area coverage are needed.
Claims9
A method of manufacturing a single-walled cylinder so that upon fragmentation thereof uniform sized fragments of a predetermined shape and mass are produced which comprises
- forming indentations on the inner surface of the cylinder corresponding to a diamond-shaped pattern,
- said pattern having the major axis of the diamonds disposed parallel to the longitudinal axis of the cylinder;
- and
- the walls of said indentation having a steep and shallow side respectively.
1 more element
A controlled fragmentation device comprising
- a cylinder composed of a fracturable material having inner walls on which are disposed intersecting indentations in the form of a diamond shaped pattern;
- said pattern having the major axis of the diamonds disposed parallel to the longitudinal axis of said cylinder;
- and
- the cross section of each indentation being disposed asymmetrically with the included angle of said diamond having a steep and a shallow side respectively.
1 more element
Dependencies are inferred from the claim text.