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:
Jan. 17, 1995
Filed:
Jul. 02, 1993
Applicant:
Inventor:
Jeffrey H Hoffman, Two Rivers, WI (US);
Assignee:
Classic Modular Systems, Inc., Two Rivers, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
454 61 ;
Abstract
A damper control apparatus for a fume hood which has a moveable sash, and wherein the damper control apparatus includes an axle assembly borne by the fume hood, a cable assembly borne by the sash and disposed in force transmitting relation relative to the axle assembly, and a damper borne by the fume hood and disposed in force receiving relation relative to the axle assembly and moveable along a path of travel into assorted operational positions which correlate with the position of the sash thereby regulating the amount of air withdrawn from the fume hood.