Ventilation grid
United States Patent D775321

Haaf, Oliver (Kupferzell, DE)
Pissarczyk, Thorsten (Gemmingen, DE)
Beck, Sven (Krautheim, DE)
Weiss, Christian (Mulfingen-Jagstberg, DE)
Application Number:
Publication Date:
Filing Date:
ebm-papst Mulfingen GmbH & Co. KG (Mulfingen, DE)
Primary Class:
Other Classes:
International Classes:
(IPC1-7): 2304
Field of Search:
D23/411-414, D23/212, D23/213, D23/223, D23/229, D23/380, D23/324, D23/330, D23/332, D23/335, D23/351, D23/353-369, D23/370-379, D23/381-386, D23/388, D23/390, D23/393, D23/499, D7/409, D7/667, D7/668, 454/241, 454/248, 454/249, 454/254, 454/256, 454/264, 454/265, 454/275, 454/277, 454/292, 454/296, 362/96, D14/140, D14/142, D14/148, D14/149, D14/172, D14/194, D14/195, D14/204, D14/209, D14/210, D14/215, D14/216, D14/217, D14/219, D14/225, D14/257, D14/496, D15/28, D26/119, D28/18, 415/119, 416/247R
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US Patent References:
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20130045085Motor suspension for fans, preferably axial-flow fans, as well as method for manufacturing an air grille of such a motor suspensionFebruary, 2013Frank415/119
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Foreign References:
DE10111397September, 2002Schutzgitter für Ventilatoren
DE202014103877October, 2014Schutzgitter für einen Ventilator
Primary Examiner:
Hattan, Susan Bennett
Assistant Examiner:
Horse, Marie Fast
Attorney, Agent or Firm:
Scully Scott Murphy and Presser
Digiglio, Frank

1. The ornamental design for a ventilation grid, as shown.


FIG. 1 is a perspective view of a ventilation grid showing a first embodiment of our new and ornamental design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a perspective view of a second embodiment of our design;

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a rear view of FIG. 5; and,

FIG. 8 is a side view of FIG. 5.