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:
Jun. 06, 1995
Filed:
Mar. 01, 1994
Koichi Hayasaki, Hiratsuka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A clutch of an automatic transmission having a clutch drum having a fluid chamber defined therein clutch hub coaxially disposed within the clutch drum; a clutch plate pack operatively interposed between the clutch drum and the clutch hub; and a piston slidably disposed in the fluid chamber in such a manner that a movement of the piston in a given direction due to feeding of operating fluid into the fluid chamber presses the clutch plate pack. In the invention, there is provided in the clutch a fine passage which connects the fluid chamber to an open air. The fine passage is exposed to a radially inner portion of the fluid chamber, so that under rotation of the clutch drum, any remaining air is forced to move toward the fine passage by the operating fluid in the fluid chamber. The fine passage is sized to permit passing of air therethrough while blocking passing of the operating fluid.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile