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:
Feb. 24, 2015
Filed:
Jul. 01, 2008
Applicant:
Andrew Ralph, Lothian, GB;
Inventor:
Andrew Ralph, Lothian, GB;
Assignee:
M-I Swaco, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07B 1/46 (2006.01); B01D 35/30 (2006.01); B29C 45/16 (2006.01);
U.S. Cl.
CPC ...
B07B 1/4627 (2013.01); B29C 45/16 (2013.01);
Abstract
There is provided a plug () for repairing a sifting or filtering screen, the plug having at least one line of weakening () which can be ruptured whereby the plug has a plurality of possible plug sizes so that the plug is capable of plugging at least two different sizes of cell of the screen. Each possible plug size has a seal () extending around the complete periphery of the chosen plug size, in use the seal serving to engage and seal against the screen in order to plug a cell aligned with a damaged area of the screen.