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:
Jun. 17, 1986
Filed:
Aug. 09, 1985
Applicant:
Inventors:
David W Wolbrink, Hartford, WI (US);
Dieter W Otte, Rubicon, WI (US);
Assignee:
Broan Mfg. Co., Inc., Hartford, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F / ;
U.S. Cl.
CPC ...
98 421 ; 98 4208 ; 98116 ;
Abstract
A ventilation fan structure has a fan blade-motor portion and a shroud portion independently affixable to the ceiling to reduce noise levels, improve aerodynamic efficiency, and facilitate installation. A mounting member is affixable to ceiling joists, one of which spans an opening in the ceiling for the fan structure. The drive motor and associated fan blades are mounted on the mounting member. The shroud surrounds the ceiling opening and embraces the fan blades. The mounting member extends through the shroud in its attachment to the joists.