4. Electricity: motive power systems
  5. Positional servo systems
  6. With particular 'error-detecting' means

John F. Prendergast, Sr.

Inventor

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

Details

Inventor

active

Apparatus and method for controlling an elevator

Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electrical control system for stairway wheelchair lift

Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Stairway chairlift mechanism

Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Stairway lift chair

Furnishings – Furniture – freestanding support – or frame therefor – Seating unit
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Stairway wheelchair lift

Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
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

John F. Prendergast, Sr. does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-332532

  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