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. 10, 1992
Filed:
Jun. 19, 1990
John G Graves, Tulsa, OK (US);
Other;
Abstract
An internal combustion engine which includes a system to deliver a combustible mixture to a cylinder, ignite the combustible mixture and exhaust the mixture after ignition. The internal combustion engine comprises at least one piston capable of reciprocating within the cylinder, each piston having an interior cylindrical surface and a continuous, wave-shaped groove recessed into the interior cylindrical surface. A rotatable crankshaft passes concentrically through the cylinder and through the piston. At least one crank member extends radially from the crankshaft and is received in the wave-shaped groove. The piston is prevented from rotating while being allowed to reciprocate so that the force of combustion causes movement of the piston thereby causing rotation of the crank member and rotation of the crankshaft.