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. 05, 1982
Filed:
Aug. 11, 1980
Robert J Hart, Tulsa, OK (US);
Commercial Resins Co., Tulsa, OK (US);
Abstract
A system for spraying fluidized powder circumferentially around a pipe comprising a powder applicator ring engageable with a pipe and having a pair of powder dispensers mounted thereon, a powder fluidization chamber containing a quantity of powder therein, a hose for introducing a stream of air into the chamber to fluidize the powder therein, a powder recovery canister having a pair of axially opposed powder blowers mounted thereon which have their intakes in communication with the interior of the recovery canister, each powder blower having an outlet from which a stream of air is allowed to pass, a pair of tangential inlet pipes circumferentially spaced and connecting with the interior of the canister, a pair of powder control valves connected to the chamber and in communication with the fluidized powder therein, a rod for actuating the powder control valves wherein a quantity of fluidized powder is exhausted into an orifice in each powder control valve, a hose for introducing the fluidized powder from each powder control valve into the sides of each powder blower outlet, a conduit connecting each powder blower outlet with a portion of each powder dispenser for supplying a stream of fluidized powder, a return conduit connecting each tangential inlet pipe to another portion of each dispenser for returning excess powder to the canister, and a fluidization blower mounted on the cylinder from which a stream of fluidizing air is allowed to pass.