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:
Sep. 10, 1991
Filed:
Sep. 11, 1990
Peter G Kronich, Sheboygan, WI (US);
Tecumseh Products Company, Tecumseh, MI (US);
Abstract
An air-cooled internal combustion engine having a rotating screen and a blower housing surrounding the screen. A ring is attached to the housing and positioned circumjacent the screen to define a precisely gauged radial clearance gap between the ring and the rotating screen. The ring provides a tortuous entry path for foreign matter entering through the air intake port between the ring and the screen. The ring includes a downwardly extending groove into which extends an upwardly turned lip of the rotating screen to form the tortuous path for foreign matter entering through the clearance gap between the inner periphery of the ring and the outer periphery of the main portion of the screen. Large debris and foreign matter entering through the tortuous path is chopped up into small pieces, which may then pass through the cooling fins.