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:
Apr. 18, 1989
Filed:
Mar. 13, 1987
Atsushi Matsushima, Hamakita, JP;
Hideaki Ueda, Iwata, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Abstract
Two embodiments of induction systems for internal combustion engines that improve mid range performance by providing a reflective device in the air inlet for the induction system that reflects negative pressure pulses back into the induction system so as to balance the pressure and reduce the deleterious effects of pulsations. In one embodiment, the reflective device is a fixed obturating member while in the other embodiment, the reflective device is an adjustably positioned valve member that is positioned in response to engine operating conditions such as engine speed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile