Method of forming and assembling a piston for a hydraulic damper

Details Method of forming and assembling a piston for a hydraulic damper Method of forming and assembling a piston for a hydraulic damper

1991-04-01

1992-11-17

Rosenbaum, Mark

Metal working

Scale remover or preventor

Scraper or scalper

2988804, 29513, B23P 1510

Patent

active

051632241

ABSTRACT:
A piston and piston rod subassembly for use with a hydraulic damper is disclosed. The piston is formed from a substantially flat blank having a pattern of bendable tabs provided along a first edge. A bendable skirt is provided along a second edge of the blank. After the blank is formed into a cylindrical body, the tabs are crimped onto a flanged end of a piston rod. A valve assembly can be retained in the cylindrical body by crimping the skirt over the valve assembly.

REFERENCES:
patent: 1556851 (1925-10-01), Kulas
patent: 3981380 (1976-09-01), Andre
patent: 4831916 (1989-05-01), Leigh-Monstevens et al.
patent: 4971181 (1990-11-01), Zaenglein et al.

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