Method of manufacturing a diaphragm backing plate

Details Method of manufacturing a diaphragm backing plate Method of manufacturing a diaphragm backing plate

2006-08-01

2006-08-01

Crane, Daniel C. (Department: 3725)

Metal deforming

With cutting

By shearing tool-couple

Reexamination Certificate

active

07082806

ABSTRACT:
A method of manufacturing a diaphragm backing plate for use in a brake booster comprising the steps of moving a coil of metal having parallel first and second sides that define a first width to a first station. Applying a stamping force to remove a section from the coil of metal and create a first plate defined by equal and parallel sides that are connected to each other by an arcuate segments each having a radius that is approximately equal to one-half of the width of the coil plus a minimum width of a lip. Moving the plate to a second station and thereafter rolling a peripheral surface thereon to define a uniform diameter for the plate that is approximately equal to the first width of the roll less twice the minimum width for the lip.

REFERENCES:
patent: 2988032 (1961-06-01), Voissem
patent: 3496753 (1970-02-01), Gibbings
patent: 5007329 (1991-04-01), Toepperwien
patent: 5123271 (1992-06-01), Sofy et al.
patent: 5158004 (1992-10-01), Bauer

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