Ralph Edward McDonald
Engineering at Remington Park Dr, Maryville, TN

License number
Louisiana PE.0028390
Issued Date
Apr 20, 1999
Expiration Date
Mar 31, 2010
Category
Civil Engineer
Type
Civil Engineer
Address
Address
2232 Remington Park Dr, Maryville, TN 37803

Professional information

Ralph Mcdonald Photo 1

Detonative Cleaning Apparatus

US Patent:
7442034, Oct 28, 2008
Filed:
Dec 11, 2003
Appl. No.:
10/733544
Inventors:
Blake C. Chenevert - Redmond WA, US
Ralph E. McDonald - Maryville TN, US
Raymond N Henderson - Federal Way WA, US
Paul M. Brown - Seattle WA, US
Assignee:
SHOCKSystem, Inc. - Glastonbury CT
International Classification:
F23J 7/00
US Classification:
431 3, 431 1, 431121
Abstract:
An apparatus for cleaning a surface within a vessel has an elongate combustion conduit extending from an upstream end to a downstream end. The downstream end is associated with an aperture in the wall of the vessel and is positioned to direct a shockwave toward the surface. At least one hanger supports the combustion conduit at at least one location along a length of the combustion conduit.


Ralph Mcdonald Photo 2

Detonative Cleaning Apparatus

US Patent:
2005012, Jun 16, 2005
Filed:
Dec 11, 2003
Appl. No.:
10/733503
Inventors:
Scott Flatness - Seattle WA, US
James Hochstein - Seattle WA, US
Ralph McDonald - Maryville TN, US
Blake Chenevert - Redmond WA, US
Raymond Henderson - Federal Way WA, US
International Classification:
A47L005/14
US Classification:
015301000
Abstract:
Apparatus and methods are provided for cleaning a surface within a vessel. An elongate combustion conduit extends from an upstream end to a downstream end associated with an aperture in a wall of the vessel and positioned to direct a shockwave toward the surface. A resilient member resiliently restrains the combustion conduit against recoil forces.