1
James Scott Ewing, Maria Maroulis, Andrew F Conn: Protective helmet. Cerebrix, Teresa J Welch, Jeffrey D Peterson, Michael Best & Friedrich, July 30, 2002: US06425141 (56 worldwide citation)

A helmet is formed with a rigid outer shell and three energy-absorbing layers made of two types of CONFOR™ ergonomic, open-celled polyurethane foams. The first layer adjacent the rigid outer shell is a CONFOR™ CF-40 yellow foam and the middle layer is a CF-47 green foam, which is of greater stiffnes ...


2
Virgil E Johnson Jr, T R Sundaram, Andrew F Conn: Cavitating liquid jet assisted drill bit and method for deep-hole drilling. Hydronautics Incorporated, Finnegan Henderson Farabow Garrett & Dunner, July 5, 1983: US04391339 (52 worldwide citation)

A drill bit and a method for deep-hole drilling in which the drill bit has mechanical cutting means located on its lower cutting face for cutting a solid surface upon rotation of the bit and a plurality of cavitating liquid jet nozzles spaced around the face of the bit to assist in the drilling acti ...


3
Chang Lee, Michael C Cordeiro, Andrew F Conn: Protective headgear for whitewater use. Whitewater Research and Safety Institute, Thorpe North & Western, February 15, 2005: US06854133 (34 worldwide citation)

Protective headgear configured for protection of a portion of a wearer's head, including a resilient outer shell, a layered composite liner including a multiplicity of deformable layers, each layer having a different stiffness than adjacent layers, and wherein a layer has a higher stiffness than tha ...


4
Andrew F Conn, William T Lindenmuth, Gary S Frederick: Fluid jet apparatus and method for cleaning tubular components. Tracor Hydronautics, Finnegan Henderson Farabow Garrett & Dunner, April 2, 1985: US04508577 (32 worldwide citation)

Fluid jet apparatus and method for cleaning material from the inside of a tubular conduit utilizing a cleaning head that lies adjacent to one wall of the conduit and includes at least two fluid jet forming means for directing a plurality of high pressure fluid cutting jets in a forward direction and ...


5
Virgil E Johnson Jr, T R Sundaram, Andrew F Conn: Cavitating liquid jet assisted drill bit and method for deep-hole drilling. Hydronautics Incorporated, April 21, 1981: US04262757 (31 worldwide citation)

A drill bit and a method for deep-hole drilling in which the drill bit has mechanical cutting means located on its lower cutting face for cutting a solid surface upon rotation of the bit and a plurality of cavitating liquid jet nozzles spaced around the face of the bit to assist in the drilling acti ...


6
Andrew F Conn, Virgil E Johnson Jr: Erosive-jet diver tool. Tracor Hydronautics, Finnegan Henderson Farabow Garrett & Dunner, January 5, 1988: US04716849 (12 worldwide citation)

An erosive fluid jet tool for underwater operation, comprising an erosive fluid jet nozzle connected to a fluid receiver receiving fluid under elevated pressure for providing hydraulic power to the tool, the nozzle providing the working output jet of the tool; and a counterthruster for providing a c ...


7
Chang Lee, Michael C Cordeiro, Andrew F Conn: Protective headgear for whitewater use. Whitewater Research & Safety Institute, Clifton W Thompson, Thorpe North & Western, December 4, 2003: US20030221245-A1

Protective headgear configured for protection of a portion of a wearer's head, including a resilient outer shell, a layered composite liner including a multiplicity of deformable layers, each layer having a different stiffness than adjacent layers, and wherein a layer has a higher stiffness than tha ...


8
James Scott Ewing, Maria Maroulis, Andrew F Conn: Protective helmet. Cerebrix, Michael Best & Friedrich, December 12, 2002: US20020184699-A1

A helmet is formed with a rigid outer shell and three energy-absorbing layers made of two types of CONFOR™ ergonomic, open-celled polyurethane foams. The first layer adjacent the rigid outer shell is a CONFOR™ CF-40 yellow foam and the middle layer is a CF-47 green foam, which is of greater stiffnes ...