The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 1993
Filed:
Nov. 12, 1992
George E Cooksey, Ridgecrest, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A safe and arm device has a cylindrical body from which a plurality of exsive leads diverge from a rotor movable through an arming angle to electrically and mechanically arm a plurality of detonators and has a rotary solenoid with a shaft oscillating a predetermined number of times when the device is to assume an armed condition. The device has an axle extending alongside the shaft, and a setback weight is mounted on and helically coupled to the axle to motivate the axle through an angle actuating the rotor through the arming angle. The shaft bears an arcuate pawl having recesses, and the axle bears an arcuate cam having recesses juxtapositioned to the pawl. Latch balls are mounted in the body between the pawl and cam for movement partially into and from the recesses. The pawl recesses are configured so that the balls are alternately motivated toward and from the cam by the oscillations, and the cam recesses are configured so that alternating engagement and disengagement by the balls releases the shaft, when motivated by the weight, to move through the actuating angle in steps corresponding to the oscillations. The cam recesses and rotor actuation are arranged to allow the device to be resafed, to be locked in both safe and armed conditions, and to minimize any intermediate condition.