Cockpit sound recorder

• US 3,327,067 A
• Filed: 02/04/1963
• Issued: 06/20/1967
• Est. Priority Date: 02/04/1963
• Status: Expired due to Term

• Current Assignee: Edmund A. Boniface
• Original Assignee: Edmund A. Boniface
• Inventors: Boniface, Edmund A.
• Application Number:
  US04/256,502
• Time in Patent Office: 1,597 Days
• US Class Current: 360/5
• CPC Class Codes: B64D 2045/0065 Black boxes, devices automatically broadcasting distress signals
• CPC Class Codes: B64D 45/00 Aircraft indicators or protectors not otherwise provided for camouflage F41H3/00

Claims

1. A RECORDING ASSEMBLY FOR AN AIRCRAFT HAVING AN ELECTRICAL POWER DISTRIBUTION SYSTEM, COMPRISING:

A FIREPROOF, WATERTIGHT, SHOCKPROOF, SEALED CONTAINER IN SAID AIRCRAFT REMOTELY LOCATED WITH RESPECT TO INFLAMMABLES CARRIED BY SAID AIRCRAFT;

A REEL-SUPPORTED ENDLESS MAGNETIC RECORDING MEDIUM IN SAID SEALED CONTAINER;

A MAGNETIC RECORDING HEAD DISPOSED ADJACENT A LOOP PORTION OF SAID RECORDING MEDIUM TO PERMIT A SIGNAL TO BE RECORDED THEREON BEFORE IT IS WOUND ONTO SAID REEL;

DRIVE MEANS IN SAID SEALED CONTAINER FOR TRANSPORTING SAID LOOP PORTION OF SAID RECORDING MEDIUM FROM SAID REEL PAST SAID RECORDING HEAD AND THENCE BACK ONTO SAID REEL;

AN AUTOMATIC ERASE HEAD DISPOSED ADJACENT SAID MAGNETIC MEDIUM AND NEAR SAID RECORDING HEAD SO AS TO CONTINUOUSLY AND AUTOMATICALLY ERASE THAT PORTION OF SAID RECORDING MEDIUM IMMEDIATELY PRECEDING SAID RECORDING HEAD;

RECORDING AMPLIFIER MEANS FOR SUPPLYING A RECORDING SIGNAL TO SAID RECORDING HEAD;

A MAIN SOURCE OF ELECTRICAL POWER EXTERNAL OF SAID SEALED CONTAINER;

CONTROL MEANS RESPONSIVE TO CONNECTION OF SAID MAIN SOURCE OF ELECTRICAL POWER TO SAID POWER DISTRIBUTION SYSTEM TO ENERGIZE SAID DRIVE MEANS AND SAID RECORDING AMPLIFIER MEANS VIA A COMMON POWER JUNCTION;

AN EMERGENCY SOURCE OF ELECTRICAL POWER;

EMERGENCY CIRCUIT MEANS TO CONNECT SAID EMERGENCY SOURCE OF ELECTRICAL POWER TO SAID DRIVE MEANS AND SAID RECORDING AMPLIFIER MEANS, VIA SAID COMMON POWER JUNCTION, IN THE EVENT OF AN INTERRUPTION OF SAID MAIN SOURCE OF ELECTRICAL POWER;

IMPACT SWITCH MEANS INTERPOSED BETWEEN SAID COMMON POWER JUNCTION AND SAID CONTROL MEANS, SAID IMPACT SWITCH MEANS BEING RESPONSIVE TO A HIGH G LOAD IMPOSED ON SAID AIRCRAFT TO OPEN THE POWER CIRCUIT BETWEEN SAID ELECTRICAL POWER SOURCES AND SAID COMMON POWER JUNCTION AND THEREAFTER MAINTAIN SAID POWER CIRCUIT IN AN OPEN CONDITION;

A NORMALLY INOPERABLE MAGNETIC FLUX DEVICE OF GENERALLY U-SHAPED CONFIGURATOIN DISPOSED ABOUT SAID REEL ALONG A RADIAL LINE EXTENDING OUTWARDLY FROM THE CENTER OF SAID REEL;

A BULK ERASE CIRCUIT FOR ENERGIZING SAID FLUX DEVICE;

AND A MANUAL SWITCH CONNECTED BETWEEN SAID CONTROL MEANS AND SAID BULK ERASE CIRCUIT, WHEREBY SAID MEDIUM MAY BE ERASED SUBSTANTIALLY IN ITS ENTIRELY BY CLOSING SAID SWITCH, AND WHEREBY IT IS IMPOSSIBLE TO ERASE SAID RECORDING MEDIUM BY CLOSING SAID MANUAL SWITCH AFTER SAID IMPACT SWITCH MEANS HAS BEEN OPENED.