Patent · US Expired

Rotary drum cutting head

US6626500B1 · kind B1 · utility

25Cited by

9References

7Claims

0Family size

Assignee

RN Cribb Pty Limited · AU

Inventors

Robert Cribb · Parramatta, AU
Norman R. Cribb · Parramatta, AU
David G. Slade · Parramatta, AU

Key dates

Filing date	Aug 21, 2001
Grant date	Sep 30, 2003
Priority date	—
Expiry date	Aug 21, 2021

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE02F3/246
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A rotary drum cutting head (40) has pair of rotary drums (16, 18) which present a plurality of cutting implements (42) adapted for milling rock or other excavatable terrain, and a hydraulic motor (46) centrally disposed between the pair of rotary drums (16, 18). The hydraulic motor (46) has a rotatable output shaft (50) to which the drums (16, 18) arm rigidly and directly connected at opposed driven ends (83) of the shaft (50) the opposed driven ends (83) extending in opposite directions from the hydraulic motor (46) in longitudinal alignment with the rotational axis (20) of the rotary drum (16, 18) and rotatably supporting the rotary drums (16, 18).

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