Michael Ted Sample

US Patent:

57095361, Jan 20, 1998

Filed:

Jan 30, 1995

Appl. No.:

8/379917

Inventors:

Wesley E. Renfro - Rosenberg TX
Marty H. Hopkins - Richmond TX
Michael T. Sample - Taylor Lake Village TX
James N. Skarzynski - Rosenberg TX

Assignee:

Titan Tool, Inc. - Oakland NJ

International Classification:

F04B 908

US Classification:

417383

Abstract:

A liquid pumping, handling and spraying system for liquid compositions and especially those liquid coating compositions having a suspension of metal particulate therein which tends to settle out of suspension of metal particulate therein which tends to settle out of suspension quite rapidly and which includes metal particulate having an affinity for adherence to metal surfaces. A fluid supply system is provided which accomplishes continuous agitation of the liquid composition to sprayed to maintain the metal particulate thereof in properly entrained suspension and even distribution with the liquid carrier fluid and which permits the use of low cost, lightweight containers for the liquid supply. A packingless pump is provided for pressurized delivery of the liquid composition from the supply container to a packingless spray gun. The packingless pump achieves pumping of liquid by hydro mechanical deformation of polymer variable volume pump chambers which induce intermittent suction and pressurization of the liquid for pumping and which have externally mounted check valve heads for controlling the flowing of the pumped liquid from the supply container to the spray gun.