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:
Aug. 11, 1992
Filed:
Aug. 19, 1991
David L Frohberg, Peoria, IL (US);
Carl L McClung, Metamora, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Air intake systems having filters are useful for removing airborne particles from the air flow. When two filters are used in two separate air systems, one of the filters could become restricted before the other and require more frequent service. The subject air intake arrangement includes a balance tube connected between a first air supply and a second air supply to balance the rate at which the filters become restricted. This arrangement of components will tend to draw more air through the cleaner filter until it is restricted the same degree as the other filter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile