4. Boring or penetrating the earth
  5. Below-ground impact members
  6. Fluid-operated

Jean-Sylvain Comarmond

Inventor

Rate now
  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Inventor

active

Hydraulic rotary-percussive hammer drill

Boring or penetrating the earth – Below-ground impact members – Fluid-operated
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Pressure regulating device for a percussive hydraulic apparatus

Motors: expansible chamber type – Cyclically operable – Distributor forms traversed movable portion of working...
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Ramming device to be assigned to a rock breaker

Tool driving or impacting – Impacting devices – Impact transmitting anvil
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Jean-Sylvain Comarmond does not yet have a rating. At this time, there are no reviews or comments for this inventor.

If you have personal experience with Jean-Sylvain Comarmond, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jean-Sylvain Comarmond will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-P-3093920

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.

Canada

 Charities
 Companies
 MP Candidates
 Patents
 Employee Salary Disclosure

World

 Places of the World
 Scientific Papers

United States

 Banks
 Companies
 Counties
 Patents
 Employee Salary Disclosure