4. Expansible chamber devices
  5. With axially extending element mounted on working member for...

William L. Shepherd

Inventor

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

Details

Inventor

active

Downcrowding device for earth boring machines

Tool driving or impacting – Advance causing or controlling means – Driven flexible member causes advance
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Kelly head for hydraulic mast digger

Expansible chamber devices – With axially extending element mounted on working member for...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Relief valve

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – With fluid pressure-actuated feed means
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Spaced button thrust surface for earth boring bit

Bearings – Rotary bearing – Roller drill bit
Patent

  [ 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

William L. Shepherd does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-297950

  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