Resources Contact Us Home
Pneumatic screw punching machine

Image Number 2 for United States Patent #6061901.

To facilitate maintenance, a pneumatic punching machine of this invention includes a poppet portion 44 at the top of a piston 28 of an air cylinder 23 and a piston catch 43 is disposed inside a head cap 24. The piston 28 is fixed as the poppet portion 44 fits into the piston catch 43 under a standby state. A retaining ring 40 is fitted into the head cap 24 to prevent fall-off of a head valve 39. A circumferential groove 41 is formed on the inner peripheral surface of the front part of the head cap 24 and a ring-like seal 42 is fitted into the groove 41. When a driver bit 29 is exchanged, fitting bolts are removed and a housing 22 and the head cap 24 are separated. Then, the head cap 24, the head valve 39, the seal 42, the piston 28 and the driver bit 29 can be removed integrally from the housing 22.

  Recently Added Patents
Herbicide composition having improved effectiveness, method of preparation and use
Correcting color plate data for mis-registration in a sub-scanning direction by performing a pixel transition at the transition point aligned in the main-scanning direction
Device to control force required to depress accelerator pedal
Plants and seeds of corn variety CV294874
Watch chain
Security arrangements for extended USB protocol stack of a USB host system
Method and system for evaluating/analyzing patent portfolio using patent priority approach
  Randomly Featured Patents
High pressure furnace
MEMS based tunable antenna for wireless reception and transmission
Interleaved repeatable runout correction for data storage device
Electron-emitting apparatus and image-forming apparatus
Silicon nitride sintered body and method for preparing the same
Vagus nerve stimulation method
Calculating intermodulation products and intercept points for circuit distortion analysis
Post-silicide spacer removal
Select-and-insert instruction within data processing systems