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.:

US 7258093 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 21, 2007

Filed:

Dec. 01, 2005
Applicants:

Shawn D. Chriswell, Longmont, CO (US);

Darrell R. Chriswell, Longmont, CO (US);

Inventors:

Shawn D. Chriswell, Longmont, CO (US);

Darrell R. Chriswell, Longmont, CO (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02F 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

An internal combustion engine is provided with a roughly concave cylinder head, wherein a ridge descends into the combustion chamber. A first wall is formed from the ridge to a cylinder periphery to form a seat for an air intake valve. A second wall is formed from the ridge to the opposite cylinder periphery to form a seat for one or more exhaust valves. The valves must criss-cross to open/close. The result is a more efficient flow of intake air and exhaust air to and from the combustion chamber which creates more horsepower. A plug compatible cylinder head can be installed on an engine to get added horsepower without a supercharger.


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