ROY O KELLY
Plumbers in Shawnee, OK

License number
Oklahoma 001454
Expiration Date
Jun 30, 2004
Type
Plumbing Journeyman License
License number
Oklahoma 000517
Expiration Date
Jun 30, 2004
Type
Mechanical Contractor License
License number
Oklahoma 001454
Category
Plumbing Journeyman License
Address
Address
Shawnee, OK

Professional information

Roy Kelly Photo 1

Jet Ski Hull And Method Of Manufacture

US Patent:
5036789, Aug 6, 1991
Filed:
Mar 1, 1990
Appl. No.:
7/489332
Inventors:
Roy T. Kelly - Shawnee OK
Shawn L. Kelly - Shawnee OK
International Classification:
B63B 524
US Classification:
114357
Abstract:
A bottom hull for a jet type watercraft is comprised of fiber reinforced plastic (FRP) outer liner and a separately produced FRP inner liner having stiffeners within the inner liner and which are joined uniquely to form a sandwich construction which provides a lightweight hull with increased strength, increased speeds, and steady planing of the craft over the water.