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. 14, 1982
Filed:
Nov. 19, 1979
William E Weseloh, San Diego, CA (US);
Orshansky Transmission Corporation, New York, NY (US);
Abstract
A power transmission having a single Ravigneau-type planetary assembly, having a single carrier with two sets of planet gears, two sun gears, and one ring gear. A first sun gear is connected by a first set of planet gears to the ring gear; the ring gear itself is directly and rigidly connected to an output shaft. A speed-varying module is connected in driving relation to the input shaft and in driving relationship to the first sun gear. The speed varying means may comprise a pair of hydraulic units hydraulically interconnected so that one serves as a pump while the other serves as a motor and vice versa, one of the units having a variable stroke and being connected in driving relation to the input shaft, the other unit, which may have a fixed stroke, being connected in driving relation to the first sun gear. The input shaft is also connectable by a first clutch to the carrier and by a second clutch to the second sun gear. A brake grounds the carrier in the first range and in reverse and causes drive to be delivered to the output through the ring gear in a hydrostatic mode.