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1. US3716105 - GRADING ATTACHMENT FOR A VEHICLE

Office États-Unis d'Amérique
Numéro de la demande 3716105D
Date de la demande 23.11.1970
Numéro de publication 3716105
Date de publication 13.02.1973
Numéro de délivrance 3716105
Date de délivrance 13.02.1973
Type de publication A
CIB
E02F 3/76
ECONSTRUCTIONS FIXES
02HYDRAULIQUE; FONDATIONS; TERRASSEMENT
FDRAGAGE; TERRASSEMENT
3Dragues; Engins de terrassement
04entraînés mécaniquement
76Niveleuses, bulldozers ou machines analogues avec lame racleuse ou éléments en soc de charrue ou éléments analogues; Dispositifs de nivellement
CPC
E02F 3/764
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
76Graders, bulldozers, or the like with scraper plates or ploughshare-like elements
7636Graders with the scraper blade mounted under the tractor chassis
764with the scraper blade being pivotable about a vertical axis
Déposants HALLAM, E. C., COMPANY
Inventeurs HALLAM E
Données relatives à la priorité 05091928 23.11.1970 US
Titre
(EN) GRADING ATTACHMENT FOR A VEHICLE
Abrégé
(EN)

A trailing grading attachment for use with a tractor vehicle has its grader blade depending from the central part of a frame which is supported by rear wheels and by a forward towing connection that permits the trailer frame to pivot relatively to the tractor vehicle both about a vertical axis and about an approximately horizontal axis extending longitudinally of the tractor vehicle, and also has that part of the frame which extends forwardly from above the central part of the grader blade confined, as viewed in plan, to the region of the longitudinal center line of the trailer frame.