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:
May. 16, 1989
Filed:
Sep. 26, 1988
Applicant:
Inventor:
Stephen E Holschbach, Manitowoc, WI (US);
Assignee:
Hamilton Industries, Inc., Two Rivers, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23J / ;
U.S. Cl.
CPC ...
981153 ; 49449 ; 292216 ; 292D / ; 292D / ; 312215 ;
Abstract
A laboratory fume hood with at least two vertically-movable sashes and with a control in the form of a multifunctional sash lock that may be selectively positioned to allow only one sash to be opened at a time, or to permit both sashes to be opened but only partially, or to allow both sashes to be opened fully.