Seat suspension height adjustment apparatus

Supports – Resilient support – Including load sustaining bearing or guide

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C248S421000, C297S344150

Reexamination Certificate

active

06616117

ABSTRACT:

BACKGROUND OF THE INVENTION
SUMMARY OF THE INVENTION
In one embodiment of the present invention, a shock absorber or dampener is provided which uses a drive to adjustably control the effective axial length of the shock in order to accommodate a plurality of seat heights. The length of the shock is adjusted by providing threads on a rod that forms part of the shock assembly which coact with threads associated with the drive source. The operation of the drive and subsequent coaction between the threads causes the rod to thread axially changing the effective length of the rod and the overall length of the shock.
In another embodiment of the present invention, an actuator is further provided with the device. The actuator moves axially in conjunction with the rod and is used to adjust the height of a seat suspension. As the actuator moves axially, it operates a valve that controls air flow into and out of the air spring. The actuator causes air to flow into the spring to increase the seat height and exhausts air to decrease the seat height.


REFERENCES:
patent: 3787025 (1974-01-01), Sturhan
patent: 3999800 (1976-12-01), Penzotti
patent: 4681292 (1987-07-01), Thomas
patent: 4913482 (1990-04-01), Hanai et al.
patent: 5112018 (1992-05-01), Wahls
patent: 5176355 (1993-01-01), Carter
patent: 5358305 (1994-10-01), Kaneko et al.
patent: 5927679 (1999-07-01), Hill
patent: 5984410 (1999-11-01), Brodersen
patent: 6193297 (2001-02-01), Vandermolen
patent: 6241209 (2001-06-01), Von Mayenburg et al.
patent: 912396 (1961-01-01), None
patent: 961999 (1962-09-01), None
patent: 1160185 (1968-04-01), None
patent: 1282213 (1970-06-01), None
patent: 1357414 (1971-05-01), None
patent: 1601370 (1977-11-01), None
patent: 9109757 (1997-04-01), None

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

Seat suspension height adjustment apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Seat suspension height adjustment apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seat suspension height adjustment apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3105236

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