Abstract:
A coiled-coil filament of refractory metal wire having longitudinally depending legs at each end that are joined to the coil barrel by open primary turns which are permanently bent through predetermined angles. The filament is initially wound as a continuous coil and, after the second coiling operation has been completed and the primary and secondary mandrels have been removed, selected primary turns in each of the then transversely extending legs are bent around an abutting stationary anvil to reposition the legs in the desired off-set relationship with the coil barrel.
Abstract:
A reliable and inexpensive ignitor for rapidly ''''firing'''' the combustible gas-producing charge of an inflatable-cushion type safety apparatus for motor vehicles. The ignitor preferably comprises a modified AG 1/2 photoflash lamp assembly which has an open-ended glass tube instead of the sealed glass envelope normally employed and is devoid of shredded foil. The open end of the tube is sealed by a plastic diaphragm which ruptures when a predetermined amount of primer inside the tube is ignited by passing electric current through a wire filament that is embedded within the primer.
Abstract:
A COILED-COIL FILAMENT OF REFRACTORY METAL WIRE HAVING LONGITUDINALLY DEPENDING LEGS AT EACH END THAT ARE JOINED TO THE COIL BARREL BY OPEN PRIMARY TURNS WHICH ARE BENT THROUGH PREDETERMINED ANGLES. THE PRIMARY WINDING IS FORMED AS A CONTINUOUS COIL AND, AFTER THE SECOND COILING OPERATION HAS BEEN COMPLETED AND THE PRIMARY AND SECONDARY MANDRELS HAVE BEEN REMOVED, SELECTED PRIMARY AND SECONDARY MANDRELS THE TRANSVERSELY EXTENDING LEGS ARE BENT AROUND AN ABUTTING STATIONARY ANVIL TO REPOSITION THE LEGS.