Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Device for efficient energy transfer and damping of impact drilling machines










Image Number 2 for United States Patent #4993504.

Device in impact machines. The device comprises a first chamber (5) which is connected to an accumlator (6) and the pressure of which is used to hold together a set of rods (2) forming part of the drill tool. Furthermore there is a second chamber (7) to damp the recoil from the set of rods.








 
 
  Recently Added Patents
High density vertical structure nitride flash memory
System and method for providing advice to consumer regarding a payment transaction
Injection molding method and injection molding machine
Mobile advertising and compensation-verification system
MOS resistor apparatus and methods
Co-map communication operator
Traffic signal mapping and detection
  Randomly Featured Patents
Hybrid electric vehicle and a method for operating a hybrid electric vehicle
Non-slip inflatable sports ball
.mu.-Metal barrier provided in connection with the receiver casing lid assembly
Data copyright management system
LED illuminator
Vibration isolation machine handle
Solar chemical process for sludge treatment
Process for improving mechanical properties of epoxy resins by addition of cobalt ions
Manufacturing method of semiconductor device having trench type element isolation
Footwear including a supramalleolar ankle foot orthosis