Patent · US Expired

Safe-and-arm device for the fuze of a spin-stabilized projectile

US4995317A · kind A · utility

7Cited by
4References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 15, 1989
Grant dateFeb 26, 1991
Priority date
Expiry dateSep 15, 2009

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF42C15/22
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A safe-and-arm or securing device for the fuze of a spinning or spin-stabilized projectile which includes a fuze member and a supporting member in which a spherical rotor is rotatably supported and which has a radial groove formed therein. The rotor possesses a bore having a detonator inserted therein, and in a peripheral region incorporates a grooves which extends along a plane which is axially offset relative to the radial groove, and with a spreadably or expandable restraining medium being inserted into the groove. The restraining medium releases the rotor which is retained in its secured position only subsequent to the firing of the projectile through the securing element which is spreadable and axially displaceable under the effect of axial and spin forces and which allows the rotor, after its release, to be pivoted in conjunction with the detonator into the armed position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.