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:
Nov. 21, 1995
Filed:
Jul. 01, 1994
Applicant:
Inventors:
Michael D Ryan, Mattituck, NY (US);
Lowell H Ryan, Mattituck, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B32B / ;
U.S. Cl.
CPC ...
156443 ; 156227 ; 156461 ; 156464 ; 156466 ; 156510 ; 55DI / ; 493243 ; 493261 ; 493924 ;
Abstract
The present invention relates to an apparatus and method of manufacturing vacuum cleaner bags with a unique tri-lock top and bottom seal. The paper end of at the end of the open bag length is sealed onto itself with seam-paste glue three times providing an extra strong seam to accommodate the ever increasing air pressure created by today's powerful cleaners.