Patent · US Active

Boom for a working machine and method for producing same

US10100540B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

Putzmeister Engineering GmbH · DE

Inventors

Dietmar Fügel · Grötzingen, DE
Christian Hahn · Oberböhmsdorf, DE
Matthias Braun · Ludwigsburg, DE

Key dates

Filing date	May 25, 2017
Grant date	Oct 16, 2018
Priority date	—
Expiry date	May 25, 2037

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE02F3/382
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A boom for a working machine, in particular a concrete-distributing boom for guiding a concrete delivery line, with a plurality of boom arms which can be moved into a working position and which are composed at least partially as a box construction of a plurality of side walls delimiting a cavity region, and with a sealing bulkhead arrangement for sealing a cross section of the cavity region, wherein the sealing bulkhead arrangement has a bulkhead wall provided peripherally with an at least partially encircling sealing groove, and wherein the sealing groove has arranged therein an elastic seal which bears tightly on the inside against the adjoining side walls.

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