The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1982
Filed:
Jul. 17, 1980
Jorg Ganz, Etoy, CH;
Abstract
A device comprising two pivoting tamping tools of lever form (9) which are mounted in opposition on a vertically movable housing (1). Each tool (9) has a bearing (15) force-fitting on an eccentric surface of a rotary shaft (17) on which a regulating flywheel (19) having a peripheral toothing is fixed within the housing (1). The two flywheels (19) engage with each other via their toothing and one of them also meshes with a pinion (22) which is driven by a motor (21). The pivoting of the two tools (9) is controlled, in phase opposition, by two cylinder-piston units (12). A lubricating circuit, driven as a result of the stirring of a bath of oil by the flywheels (19) and of centrifuging by an imbalance weight, is established through the bearings of the rotary shaft (17).