a-synchone construction

Hi,
Can anyone help me out here,

I'm looking for a design (pattern?) for a-synchronic construction of a
class.
I need this design in a framework which will run in a multithreaded system.
I want a class in threadA to a-synchronously construct a class in threadB.
Both threads will probably need a kind of construction manager.
For passing the request I will probably need to use a parameterised class.
The client class sends a request, and the server thread, which is located in
another thread, will handle the request.

Thanks in advance,
Anthony Lansbergen
Adesys b.v.