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:
Dec. 19, 1989
Filed:
Dec. 28, 1987
Hans Sigg, Mutschellen, CH;
MAAG Gear-Wheel & Machine, Co. Ltd., Zurich, CH;
Abstract
A bowl-mill gearing (14) which consists of an epicyclic gear (14b) and an intermediate gear (14a) composed of spur wheels (18, 20, 22, 24) with parallel axes. The driving shaft (26) of the intermediate gear (14a) is disposed parallel to the driven shaft (52) and with spacing from the mill axis (42). The driven wheel (24) of the intermediate gear (14a) means with a small intermediate wheel (22) which is mounted for rotation outside the annular gear case (20) of the bowl-mill gearing (14) and is disposed so that it projects through a cut-out (80) in the gear case (30) into the interior of the gear case. The dimensions of the intermediate wheel (22) and of the driven wheel (24) are selected so that the wall (34) of the annular gear case only has to be provided with a cut-out (80) which is less than an eighth of the circumference of the gear case as a result of which there is negligible weakening of the gear case. The bow-mill gearing combines all the advantages of epicyclic and parallel-shaft gears while eliminating a bevel gear as an intermediate gear.