1
Peter M Borgren: Portable hydrogenerating apparatus. Hydrodynamic Energy Systems, Schwartz Jeffery Schwaab Mack Blumenthal & Koch, April 13, 1982: US04324984 (11 worldwide citation)

Apparatus for generating hydroelectric power comprising a portable collector tube assembly which can be transported to the site of a water source having a waterfall sufficient in magnitude to provide a pressure head for driving a turbine generator. The tube assembly comprises telescopically arranged ...


2
Borgren Peter M: Portable hydrogenerating apparatus.. Hydrodynamic Energy Systems Co, February 16, 1983: EP0071637-A1 (1 worldwide citation)

Apparatus for generating hydroelectric power comprising a portable collector tube assembly which can be transported to the site of a water source having a waterfall sufficient in magnitude to provide a pressure head for driving a turbine generator. The tube assembly comprises telescopically arranged ...


3
Borgren Peter M: Portable hydrogenerating apparatus. Hydrodynamic Energy Systems Corporation, KOCH Robert J, August 19, 1982: WO/1982/002746

Apparatus for generating hydroelectric power comprising a portable collector tube assembly (20) which can be transported to the site of a water source having a waterfall sufficient in magnitude to provide a pressure head for driving a turbine generator. The tube assembly comprises telescopically arr ...