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. 25, 1978
Filed:
Sep. 12, 1975
Anton Braun, Minneapolis, MN (US);
Other;
Abstract
A free piston engine having a pair of opposed power cylinders and pistons on a common longitudinal axis with an energy absorbing device, such as a compressor piston, being directly connected to one of the power pistons and indirectly connected to the other power piston by means of a motion reversing, synchronizing and counterbalancing mechanism on said axis. The cylinders are arranged to be fired simultaneously and due to the face that the forces from the power pistons acting on the reversing mechanism are balanced, the forces on the bearings in the mechanism are substantially reduced over those occurring in machines having cylinders that fire 180.degree. out of phase, which results in a minimum of wear and higher efficiency due to the reduced friction. The engine can also have a bounce chamber therein which gives better control and more stable operation of the power pistons than found in engines with alternately acting pairs of power pistons which do not require power piston returning means.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile