Title: Safety belt tensioning device

Abstract: The invention concerns an apparatus for tensioning restraining devices, such as safety belts. The tensioning is effected by a piston arranged to move within a cylinder when actuated by a pressure medium. A return stopping device is provided to maintain tension after actuation.

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Inventors: Schwanz, Wilfried (Braunschweig, DT)
Fiala, Ernst (Braunschweig, DT)
Warnecke, Rolf (Ribbesbuttel, DT)
Buchholz, Peter (Braunschweig, DT)

Application Number: 534364
Filing Date: 1974-12-19
Publication_date: 1976-03-09
Assignee: Volkswagenwerk Aktiengesellschaft (Wolfsburg, DT)
Primary Class(es): 297/478 297/480
Other Classes:
US Patent Ref:

2825581	Mar, 1958	Knight	280/150.
3178136	Apr, 1965	Bayer	280/150.
3804430	Apr, 1974	Fiala	280/150.

Other Refs:
Primary Examiner: Song, Robert R.
Assistant Examiner:
Attorney: Brumbaugh, Graves, Donohue & Raymond