Patent · US Active

Method for manufacturing a pot-shaped pressure vessel, and such a pressure vessel

US9844830B2 · kind B2 · utility

0Cited by

8References

6Claims

0Family size

Assignee

PROGRESS-WERK OBERKIRCH AG · DE

Inventors

Hubert Leible · Durbach, DE
Max Dinkelbach · Laufenburg (Baden), DE
Dirk Stahlberger · Achern, DE
Horst Siefermann · Renchen, DE

Key dates

Filing date	Mar 11, 2010
Grant date	Dec 19, 2017
Priority date	—
Expiry date	Nov 12, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49826
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for manufacturing a pot-shaped pressure vessel, in particular an air spring pot for a vehicle, comprises the following steps: providing a pot, which comprises a bottom, which comprises at least one aperture, providing at least one screw, which comprises a head and a shank, inserting the shank of the at least one screw through the aperture from an inside of the pot, so that the shank of the screw protrudes from an outside of the bottom, and firmly joining the screw to the bottom of the pot. In the transitional area from the head to the shank at least one screw comprises a connecting section tapering from the head to the shank and extending all round the circumference. In inserting the shank through the aperture the connecting section is brought to bear against the edge of the aperture, and the connecting section is joined to the edge of the aperture along its bearing contact with the latter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.