Safety belt apparatus for vehicles

• US 3,172,684 A
• Filed: 11/15/1962
• Issued: 03/09/1965
• Est. Priority Date: 11/15/1962
• Status: Expired due to Term

• Current Assignee: Peter Isaac
• Original Assignee: Peter Isaac
• Inventors: PETER ISAAC
• Application Number:
  US04/238,329
• Time in Patent Office: 845 Days
• US Class Current: 297/480
• CPC Class Codes: B60R 21/01 Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents electrical circuits for transmission of signals between steering wheel and the vehicle itself B60R16/027; for electrically actuating belt retractor locking means B60R22/343
• CPC Class Codes: B60R 21/268 using instantaneous release of stored pressurised gas B60R21/26005 takes precedence
• CPC Class Codes: B60R 22/00 Safety belts or body harnesses in vehicles safety belts or body harnesses in general A62B35/00
• CPC Class Codes: Y10T 137/1647 Explosive actuation
• CPC Class Codes: Y10T 137/1767 Movable knife or cutter

Claims

1. A SAFETY APPARATUS FOR A VEHICLE FOR PREVENTING A PASSENGER FROM BEING THROWN OUT OF HIS SEAT UNDER THE INFLUENCE OF INERTIAL FORCES, SAID APPARATUS COMPRISING, IN COMBINATION, MAGNETIC BELT MEANS WORN BY SAID PASSENGER WITH AT LEAST A PORTION OF SAID BELT MEANS BEING LOCATED ADJACENT THE BACK REST OF SAID SEAT WHEN THE PASSENGER ASSUMES A NORMAL SITTING POSITION THEREON, ELECTROMAGNET MEANS MOUNTED IN THE BACK REST OF SAID SEAT OPPOSITE THAT PORTION OF THE MAGNETIC BELT MEANS WHICH IS LOCATED ADJACENT SAID BACK RESTM AND ELECTRIC CIRCUIT FOR ENERGIZING SAID ELECTROMAGNET MEANS, AND AN INERTIA RHEOSTAT DEVICE DISPOSED IN SAID CIRCUIT TO MAINTAIN THE CURRENT SUPPLIED TO SAID ELECTROMAGNET MEANS NORMALLY AT A LOW VALUE THEREBY PERMITTING FREE MOVEMENT OF SAID PASSENGER AND TO INCREASE THE CURRENT TO SAID ELECTROMAGNET MEANS UPON SUDDEN RETARDATION OF THE VEHICLE THEREBY STRONGLY ENERGIZING SAID ELECTROMAGNET MEANS AND RESTRAINING SAID PASSENGER AGAINST MOVEMENT THROUGH THE MAGNETIC ATTRACTION OF SAID BELT MEANS BY SAID ELECTROMAGNET MEANS.