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:
Jul. 24, 1990
Filed:
Dec. 07, 1988
Kenneth B Sugden, Rockford, IL (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
A mechanical differential is disclosed. The mechanical differential comprises first, second and third ring gears, each having inner and outer surfaces, and first and second planet gears and two carrier rods. The first and second planet gears and first and second carrier rods are disposed within the ring gears. The first and second planet gears are engaged with the inner surface of the first ring gear. The mechanical differential further comprises two sets of planet gears, each of the sets including third and fourth planet gears. One of the sets is rotatably disposed on a third carrier rod and the other of the sets is rotatably disposed on a fourth carrier rod. The two sets of third and fourth planet gears are engaged respectively with the second and third planet gears. The two third output planet gears are further engaged with the inner surface of the second output ring gear and the two fourth planet gears are further engaged with the inner surface of the third ring gear.