Electric jack stroke limit detection method and device

Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Load control

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C318S432000, C318S433000, C318S436000, C254S418000, C254S424000, C280S006159, C280S006153, C280S006156

Reexamination Certificate

active

11223689

ABSTRACT:
A method and device for detecting the stroke limit of an electric motor-driven jack while the jack is being used to adjust the attitude of a mobile platform. A controller is programmed to detect when an electric jack motor has driven a jack to a jack stroke limit by monitoring one or more jack motor power draw characteristics and comparing those values to known values associated with the driving of a jack at or near the end of a jack stroke.

REFERENCES:
patent: 3606247 (1971-09-01), Liston
patent: 3943637 (1976-03-01), Hanser
patent: 4061309 (1977-12-01), Hanser
patent: 4084830 (1978-04-01), Daniel et al.
patent: 4148125 (1979-04-01), Hanser
patent: 4165861 (1979-08-01), Hanser
patent: 4380258 (1983-04-01), Hanser
patent: 4467250 (1984-08-01), Thomasson
patent: 4597584 (1986-07-01), Hanser
patent: 4655269 (1987-04-01), Hanser et al.
patent: 4743037 (1988-05-01), Hanser
patent: 4746133 (1988-05-01), Hanser et al.
patent: 4807767 (1989-02-01), Kornely
patent: 5143386 (1992-09-01), Uriarte
patent: 5176391 (1993-01-01), Schneider et al.
patent: 5188379 (1993-02-01), Krause et al.
patent: 5511459 (1996-04-01), Hanser et al.
patent: 5547040 (1996-08-01), Hanser et al.
patent: 5628521 (1997-05-01), Schneider et al.
patent: 5676385 (1997-10-01), Schneider et al.
patent: 5772270 (1998-06-01), Hanser et al.
patent: 5890721 (1999-04-01), Schneider et al.
patent: 5901969 (1999-05-01), Schneider et al.
patent: 5908215 (1999-06-01), Hanser et al.
patent: 5913525 (1999-06-01), Schneider et al.
patent: 6050573 (2000-04-01), Kunz
patent: 6948722 (2005-09-01), Sproatt et al.
patent: 7091683 (2006-08-01), Smith et al.
patent: 2003/0015982 (2003-01-01), Cox-Smith et al.
patent: 2004/0046337 (2004-03-01), Sproatt et al.
patent: 2004/0155622 (2004-08-01), Mayhew et al.
patent: 2005/0237802 (2005-10-01), Santero et al.

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

Electric jack stroke limit detection method and device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric jack stroke limit detection method and device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric jack stroke limit detection method and device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3767146

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