Research/Patents/US 4970702
US 4970702

ELECTRICAL CONDUCTOR DETECTING DEVICE

Assignee

Filed

Dec 5, 1968

Granted

Nov 13, 1990

Location

Abstract

A sweep device for river mines of the command type is described. The devicemploys two spaced, parallel blades which support the sweep device on the bottom of the river as it is towed therealong. The blades constitute laminated cutting elements which provide a signal of the presence of a command wire as it is severed on contact, as well as serve as electrodes for supplying an electric signal to sweep the mine. An electrical circuit is also described to process the signals from the blades, so as to distinguish between small metallic debris and metallic bodies bridging the two blades.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 22, 1982

Rescinded

Jun 8, 1990

Duration

8 years, 4 months

Technology Domains

Click a domain to browse all patents in this category.

Back to patent indexSource: USPTO 35 USC §181 secrecy order records