Dr Jeff Zhang

Shenzhen

China, mainland

Profile Information:

Which of the following are you?
Dive Company Executive/Office Staff
Dive school you went to or are attending?
On Job
Are you an inland diver, offshore diver or both?
Wherever there's work
What do you like to do with your down time / onshore time?
Diving helmet collection, Match box collection, Tour, Writing.
As a diving physician and visiting professor teaching diving medicine, safety and regulations to several universities and diving training centers in China.
As a diving advisor to authorities, associations, hospital, insurance, procurement, publisher and manufacturer in China.
What's your deepest dive? (in feet)
230

Comment Wall:

  • abdul azeez

    hi,hoow are you??

    Apr 8, 2010

  • Ed Fogderud

    Jeff,

    It's good to hear from you again. Hope all is well with you,.
    Ed...

    Apr 10, 2010

  • Ed Shippen

    Thanks for the compliment on my helmet. Used it for 10 years in the oilfield on air and helium dives. Rarely used demand as it was super quiet(Desco exhaust made more noise than incoming air). Tried KM adjustable regulator, but preferred standard regulator. Chin pad in helmet kept mouthpiece easy to draw air directly from regulator. Just gathering dust now as I don't think anyone is hiring 70 year old divers.

    Apr 12, 2010

  • Doug Smith

    Hi Jeff:

    The Com Hat 1 was the predacessor of the superlites. It used a liquid filled liner to cushion the head and offset the air space / buoyancy problems. Unfortunately the liner tended to leak. The Superlite addressed the problem by using a plain foam liner and adding weights to the helmet to offset the buoyancy. If you take a look at my profile pictures there is a brochure there that describes the Com Hat 1.

    Doug

    Apr 12, 2010