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US 5,243,743 AGranted
Apparatus for making cups
OwnerManfred J. Petersoninventor
Life of this patent
Estimating the term…
Abstract
A forming machine for making shallow cups is provided. It has a cylindrical secondary form with a top surface adjacent to which a blank may be positioned. The secondary form is spring-mounted so that it can move during the forming operation. The pressure applied by the spring to the form is adjustable. A forming punch presses the blank, and in turn the secondary form, and moves them further into a body member so that the blank is formed into a shallow cup with the sidewall of the cup positioned around the forming punch.
Claims2
An apparatus for forming a thin metal blank into a shallow cup, comprising:
- a body member having first and second ends, an indent at said first end forming a seat in said body member, an inner wall defining a cylindrical opening extending from said second end into said indent, and a screw thread on said inner wall at said second end;
- a secondary form slidably received within said cylindrical opening, said secondary form having a first end extending into said indent and a second end located within said cylindrical opening;
- a spring located within said cylindrical opening, said spring supporting said secondary form;
- adjusting means for adjusting the force that the spring exerts against said secondary form, said adjustment means being threadably engaged with said screw thread and supporting said spring;
- and
- a forming punch movable toward and into said indent.
3 more elements
Dependencies are inferred from the claim text.