Shotshell casing with partially telescoped basewad
US4509428A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Oct 13, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B5/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A single-piece plastic shotshell casing and method of making same comprising softening one end portion only of a tube of uniformly biaxially oriented high density polyethylene sufficiently for forming and until a dollup is formed, then telescoping only a portion of the dollup into the rigid sidewalls of the tube, and then forming the dollup into a substantially thickened integral transverse base section constituting a head with a longitudinally extending primer opening therein, the base section being substantially biaxially oriented and the rigid sidewalls terminating a substantial distance inwardly from the outer end of the base section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.