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:
Oct. 14, 2014
Filed:
Mar. 10, 2009
John D. Martin, Wichita Falls, TX (US);
John D. Martin, Wichita Falls, TX (US);
Other;
Abstract
A spray device for cleaning residue from a filter member. In one embodiment, the spray device includes a tubular stem telescopically slideable in a sleeve. A coil spring surrounds the stem and resists movement of the stem out of the sleeve. A tubular halo with nozzles is fastened to the end of the tubular stem so that when a pressurized fluid is applied to the stem, the stem is forced out of the sleeve against the spring force, thereby causing the halo to travel along a cylindrical filter surface. The pressurized fluid is also jetted from the nozzles and cleans the cylindrical surface. When the pressurized fluid is removed from the spray device, the spring retracts the stem and the halo back to a rest position. In another embodiment, the halo is replaced with a nozzle head that moves within a cylindrical filter surface to be cleaned.