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:
Feb. 21, 2017
Filed:
Jul. 06, 2010
Applicants:
Henry Himanen, Jyvaskyla, FI;
Totte Virtanen, Jyvaskyla, FI;
Inventors:
Henry Himanen, Jyvaskyla, FI;
Totte Virtanen, Jyvaskyla, FI;
Assignee:
Valtra Oy Ab, Suolahti, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60H 1/00 (2006.01); B60H 3/06 (2006.01);
U.S. Cl.
CPC ...
B60H 3/0633 (2013.01); B60H 1/00378 (2013.01); B60H 3/0641 (2013.01);
Abstract
A utility vehicle, cab ventilation system which includes a fan and a main filter located in the cab roof section with an upstream pre-filter mounted on the exterior of the cab roof. The pre-filter rotates about an axis parallel to air flow and centrifugally forces matter outward, effectively reducing material build up and frequency of service to the main filter within the roof section. The pre-filter can be built into a new cab ventilation system or provided in a module, for adding to existing cab ventilation systems.