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:
Sep. 21, 2010
Filed:
Jun. 30, 2004
Stephen C. P. Joseph, Warwickshire, GB;
Alan F. Butler, Warwickshire, GB;
Stephen C. P. Joseph, Warwickshire, GB;
Alan F. Butler, Warwickshire, GB;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A spray gun () has a fluid reservoir () which contains a removable liner (). The liner (), which may be thermo/vacuum-formed from a plastic material, is a close fit within the interior of the reservoir and collapses as fluid is withdrawn from within the liner during operation of the gun. Preferably, the liner has a comparatively-rigid base and is capable of standing, unsupported, outside the reservoir. The side walls of the liner are preferably thin in comparison to the base and can be collapsed for disposal of the liner. The reservoir () has a removable lid () and is capable of standing, inverted, on its own so that it can be filled with fluid. The lid () also functions to secure the liner () in the reservoir and, at the end of a spraying operation, the lid () and the liner () are removed together from the reservoir () and discarded, thereby simplifying the cleaning of the spray gun.