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:
May. 07, 1985
Filed:
Aug. 15, 1983
Nguyen Dang, Minneapolis, MN (US);
Other;
Abstract
A two-part piston assembly is disclosed for increasing the removal of exhaust gases from an internal combustion engine during the exhaust stroke. The two-part piston (14a), (16a), shown in several embodiments, may include an appropriately adjusted spring assembly (54), (56), (50), (52) to insure that the assembly will be in a compressed state during compression and a distended state during exhaust. This can also be accomplished by a cam mechanism (78) having a ratchet (110) with pawls (114), which operate on the angular movement of the crankshaft (18) with the cam operating a cam follower (80) producing the same result as in the previous embodiments.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile