Patent · US Active

Angled boom comprising variable cross-section for mobile concrete pumps

US11952788B2 · kind B2 · utility

0Cited by

14References

19Claims

0Family size

Assignee

Putzmeister Engineering GmbH · DE

Inventors

Jens Häfner · Innsbruck, AT
Peter Mögle · Echterdingen, DE
Ansgar Müller · Stuttgart, DE
Knut Kasten · Esslingen am Neckar, DE

Key dates

Filing date	May 9, 2018
Grant date	Apr 9, 2024
Priority date	—
Expiry date	Aug 5, 2041

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE04G21/0427
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention relates to a boom arm for mobile concrete pumps and to a mobile concrete pump. The boom arm, having a first and second end, wherein at least one elbowed section, in which the main bending loads which occur during proper use act as torsional loads, is provided between the first and the second end of the boom arm, is made from a fiber composite material, wherein beyond the elbowed region the height of the boom arm in cross-section is greater than the width of the boom arm in cross-section and in the elbowed region the width of the boom arm in cross-section is greater than or equal to the height of the boom arm in cross-section. A concrete pump with a placing boom, arranged on a substructure, comprising at least two boom arms, at least one of which is designed according to the invention.

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