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:
Jan. 12, 1993
Filed:
May. 05, 1992
Robert B Bossler, Jr, Hacienda Heights, CA (US);
Lucas Western, Inc., City of Industry, CA (US);
Abstract
A gear arrangement for an offset transmission includes two concentric, counter-rotating face gears in meshing engagement with an engine output shaft, the face gears being connected to respective concentric, vertical counter rotating face gear shafts of unequal length, each shaft ending in a helical spur gear that is in meshing engagement with an output helical face gear. The helical output face gear is connected to the output shaft, thereby completing the offset transmission. The face gear shafts can be coupled together by means of thrust bearings that couple the axial thrusts of one shaft to the other in an opposite direction. The shafts can also be coupled via a preload spring that ensures the torque split between the pinion gears is statically determinant. The gear arrangement can be applied to twin engine designs, with a spur gear train coupling the two engines together via an interconnect shaft.