i have some questions...which countries can make concrete pumps...and when was first concrete pump made?

Around 1930 German based company Torkret made the first ever concrete pump. However the patented idea was there about 20 years earlier in the USA.

China, Korea, Turkey, Australia, USA, Holland, UK, Germany, France, Italy, India, Brazil, Spain, Russia, all have capabilities of manufacturing concrete pumps.

ConcretePumping.com has spent a lot of time and money on safety. We also have a few realy great experts who are willing to answer any safety related question. We have spent no time or money on the history of ConcretePumping I might take on this project soon.

Here some Pictures from some classic pump: http://www.concretepumping.com/index.php?mode=newboard&act=topic&tid=7950 Shame on you Todd....you should know the History of the things you work with :D

I am not saying that i don't have any knowledge of our history. What i am saying is that i have not spent the time or money to have the history written down. Its not a simple project.

http://www.putzmeisteramerica.com/about/company_milestones/1950.cfm

 I've looked into it quite a bit. It seems that the best info is in the international patent archives. Tons of legit info that shows Who built what and when and the entire mechanical evolution of concrete pumping, one patent improvement after another.

 The earliest patent for a dual piston concrete pump was applied for by an American who was in Panama working on the canal. The man died before the patent was issued. A few patent 'improvements' were issued to a German on the valve which was originally called the 'RockingValve' by its original designer. Before this, Germany had little to do with concrete pumps besides a few auger drive and squeezer designs.

 I cant read Italian but Italy has been 'spraying' mortar with piston type pumps for over 100 years. And claim that they've been pumping actual concrete for over 80 years.

thank you guys specially PUMBO and TODD...i had successful conference in our university...i used your movies and pics and my professor was SO HAPPY with me...

I believe the Romans had a slave powered mortar pump in their day

The first patent was issued about 1912

There have been some weird and wonderful valve and hydraulic systems designed in the process  of giving us the great machines we have today.