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:
Nov. 11, 1980
Filed:
Jun. 28, 1977
Hiroaki Maeda, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
An output split-type mechanical and hydraulic transmission includes input, intermediate, and output shafts, differential gear mechanisms for establishing different input-output speed ratios, clutch mechanisms for selectively cooperating with components of the differential gear mechanisms and the input, intermediate, and output shafts to establish different input-output speed ratio ranges, and first and second hydraulic pump motors. The first pump motor has a variable hydraulic capacity and is mechanically and driveably connected to the input shaft for establishing variations in the hydraulic capacity. The second pump motor is mechanically connected to at least one component of the differential gear mechanisms for establishing rotational speeds of the components of the differential gear mechanisms during the different input-output speed ratio ranges in relationship to the variations o the first pump motor's hydraulic capacity. A first differential gear mechanism includes at least four elements, the first element being connected to the input shaft, the second element being connected to the second pump motor, and the third and fourth elements being selectively engageable with the intermediate shaft. A second differential gear mechanism includes at last three elements, the first element being connected to the input shaft, the second element being connected to the intermediate shaft, and the third element being connected to the output shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile