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:
Aug. 13, 1991
Filed:
Aug. 10, 1990
Applicant:
Inventor:
Howard Goldberg, Newburgh, NY (US);
Assignee:
Mastercraft Industries, Inc., Newburgh, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55367 ; 55374 ;
Abstract
Air leakage passageways formed by an elongated sealing finger deflected through a sealable collar of a vacuum cleaner bag are substantially eliminated by the use of straddling tabs or an additonal elastic membrane across the collar opening which assure a total seal between the collar opening and the vacuum cleaner inlet fitting when the latter extends through the opening.