ROBERT LOUIS MAGGIO
Pilots at Willow Rd, Elmhurst, IL
License number
Illinois A1174725
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
670 N Willow Rd, Elmhurst, IL 60126
Professional information
Balanced Relief Valve With Novel Seal
US Patent:
4316598, Feb 23, 1982
Filed:
Jul 25, 1980
Appl. No.:
6/172399
Inventors:
Robert L. Maggio - Elmhurst IL
Assignee:
Vapor Corporation - Chicago IL
International Classification:
F16K 31122
US Classification:
251 63
Abstract:
A pilot operated pressure relief valve for use on medium and high pressure vessels, conduits, and the like. A two-stage, non-flowing pilot valve operates a main relief valve of substantially greater capacity. In a preferred embodiment the main valve is mounted directly onto the pressure vessel which is to be vented at a predetermined pressure. The pilot is preferably mounted closely adjacent to the main valve for operating communication therewith. An improved main valve seal is provided which allows the use of commonly available seal configurations in a simple and easily assembled construction to provide a fast operating, high pressure seal.
Paint Spray Gun Nozzle Assembly
US Patent:
4728039, Mar 1, 1988
Filed:
Dec 8, 1986
Appl. No.:
6/939357
Inventors:
Myron J. Johnson - Arlington Heights IL
Robert L. Maggio - Elmhurst IL
Robert L. Maggio - Elmhurst IL
Assignee:
Stewart Warner Corporation - Chicago IL
International Classification:
B05B 128
US Classification:
239296
Abstract:
A paint spray gun having a plastic nozzle body with a separate plastic nozzle tip universally mounted on the nozzle body to align the tip in a central orifice in a plastic air cap.