Title: Vehicle suspension spring

Abstract: The spring comprises at least one spring leaf formed from a bar having a circular cross-section and flattened progressively toward each end. The portions of the bar defining the ends have a substantially rectangular cross-section. The center part of the bar is cylindrical. The flattened ends may be rolled round onto themselves to form eyes for the passage of spring fastening means. The spring may have a plurality of such leaves and for a secondary leaf devoid of eyes.

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Inventors: Duchemin, Michel Leon (Douai, FR)

Application Number: 559784
Filing Date: 1975-03-19
Publication_date: 1976-08-17
Assignee: Ressorts du Nord S.A. (Paris, FR)
Primary Class(es): 267/47
Other Classes:
US Patent Ref:

1818040	Aug, 1931	Carteret	267/47.
3705718	Dec, 1972	Fukui et al.	267/47.
3814410	Jun, 1974	Fukui et al.	267/47.

Other Refs:
Primary Examiner: Marbert, James B.
Assistant Examiner:
Attorney: Burns, Doane, Swecker & Mathis