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. 07, 1986
Filed:
Nov. 15, 1983
Applicant:
Inventor:
James W Frobose, Haskins, OH (US);
Assignee:
The Jasper Corporation, Easton, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C / ;
U.S. Cl.
CPC ...
297452 ; 5468 ; 297D / ;
Abstract
To assist in maintaining the high degree of cleanliness required by Federal standards in industrial clean rooms, an upholstered seat is provided having a sealed filter element through which air must flow when entering or exiting the seat structure. A hard base member having a cushion mounted thereon is enclosed within an air-impermeable cover. The filter element in the form of a hydrophilic or hydrophobic sheet is placed between the hard base member and cover. The hard base member and cover contain air breathing apertures on opposite sides of the filter element. The upholstered seat exceeds Federal standards in its ability to avoid contaminating clean rooms.