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. 20, 1981
Filed:
May. 21, 1979
Applicant:
Inventors:
David W Wright, Redondo Beach, CA (US);
Harley G Peterson, La Crescenta, CA (US);
Assignee:
Joy Manufacturing Company, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55378 ; 6534 / ;
Abstract
A thimble construction for filter bags used in baghouses and the like which reduces the pressure drop in air approaching the thimble radially along a wall surface by causing a generally laminar flow of such air as it enters the thimble opening. The invention also contemplates a new and improved configuration in the upper portion of the thimble which provides a wedging action against the inner surface of a filter bag to promote a tighter seal and prevent gas leakage.