John Charles Chapman
Engineers at Yorkshire Ter, Clifton Park Center, NY

License number
Colorado 42559
Issued Date
Nov 25, 2008
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
4 Yorkshire Ter, Clifton Park Center, NY 12065

Professional information

John Chapman Photo 1

Swimming Pool Bulkhead

US Patent:
2011019, Aug 11, 2011
Filed:
Nov 29, 2010
Appl. No.:
12/955363
Inventors:
John C. CHAPMAN - Clifton Park NY, US
Gilbert P. POWELL - Granville NY, US
Robert B. SCHIAVI - Porter Corners NY, US
James F. DUNN - Troy NY, US
Assignee:
AQUATIC DEVELOPMENT GROUP, INC. - Cohoes NY
International Classification:
E04H 4/00
US Classification:
4505
Abstract:
A swimming pool bulkhead is disclosed. The bulkhead includes a substructure having a metallic frame, a pair of support assemblies mounted to opposite ends of the metallic frame of the substructure, and a superstructure having a non-metallic frame mounted to the substructure. A buoyancy chamber for a swimming pool bulkhead is also disclosed. The buoyancy chamber includes a substantially fluid-tight, cylindrical chamber, an air input conduit operatively connectable to a source of pressurized air, an air discharge conduit having an inlet in the chamber, and means for varying an elevation of a water level in the chamber to vary the buoyancy of the chamber. A method for controlling the buoyancy of a bulkhead is also provided.