B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
B60R 21/26 (2006.01)
Patent
CA 2125859
2125859 9311973 PCTABS00022 An inflator (110) comprising: a pressure means (12, 14, 16, 20) for storing a quantity of stored inflation gas under pressure. The pressure means comprising a first burst disk (46) in communication with the stored inflation gas and preventing egress of the gas from the chamber and a hollow sliding piston (172) having at one end thereof cutting edges (174) for puncturing the first burst disk (46). A shear disk (180) having a stationary outer portion (187) and a central or inner portion (186), the central portion is secured to one end of the piston (172) opposite the cutting edges (174). The central portion is capable of separating from the outer portion and moving with the piston (172). The central portion also functions as a second disk. A quantity of propellant material (218) is provided near the second burst disk (80) to produce gaseous combustion products when burned. The piston is propelled into the first burst disk (46) after the central portion (186) of the shear disk separates from the outer portion in response to the build up of pressure generated due to the burning of a propellant (218), thereby permitting the egress of the stored inflation gas. The central portion (186) or second burst disk is ruptured by the continued build up of pressure due to the burning propellant material whereupon after the rupturing of the second burst disk the heated products of combustion resulting from the burning propellant material flow through the sliding piston (172) to increase the temperature of the stored inflation gas prior to its exit from the inflator.
Bazel Teresa Lorraine
Bishop Robert John
Brown Roy Glenn
Frantom Richard Louis
Kremer Robert Max
Bendix-Atlantic Inflator Company
Borden Ladner Gervais Llp
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