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. 07, 1989
Filed:
Apr. 18, 1988
Alan D Gustafson, Eden Prairie, MN (US);
Richard F Unger, New Prague, MN (US);
Thermo King Corporation, Minneapolis, MN (US);
Abstract
Transport refrigeration apparatus including a condenser section containing an inverted U-shaped refrigerant condenser coil which defines a central opening which functions as a fan chamber having a vertically oriented air discharge side. A propeller fan is disposed in the central opening of the condenser coil which draws air through the condenser coil and discharges it through the vertically oriented discharge side of the opening. A metallic grille is disposed across the air discharge side of the central opening, with the grille having a plurality of horizontally spaced, vertically oriented louvers which straighten the discharge air flow in vertical planes and reduce short circuiting of the discharge air back into the condenser coil. The louvers are spaced by a dimension selected to enable the metallic grille to perform the function of a protective or safety grille across the fan chamber.