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. 22, 1980
Filed:
Jun. 19, 1978
Applicant:
Inventor:
Robert W Kress, Lloyd Harbor, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63H / ;
U.S. Cl.
CPC ...
46 78 ;
Abstract
A multi-propeller propulsion system for model aircraft having a single engine and positive driving connections between the engine and each of the multiplicity of propellers. The positive drive may include toothed pulleys and serrated belts and gearing for example.