Wheelchair having a pivot provision adjacent the knee of a user

Land vehicles – Wheeled – Occupant propelled type

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C297SDIG010, C297S313000, C280S304100

Reexamination Certificate

active

10171800

ABSTRACT:
Wheelchair of which a sitting support is pivotable about a virtual or non-virtual pivot axis, extending substantially horizontally, substantially at right angles to a main driving direction of the wheelchair, wherein the upper part of the body of the user, at least its center of gravity, viewed in the main driving direction, lies behind the pivot axis and wherein the pivot axis is located preferably adjacent the hinge point of the knees of a user seated in the wheelchair during use. The sitting support may be freely pivotable about said pivot axis or be fixed at a particular pivot angle. The pivot axis can for instance be designed as a torsion bar.

REFERENCES:
patent: 521463 (1894-06-01), Smith-Fraser
patent: 3415531 (1968-12-01), Kiel
patent: 4078817 (1978-03-01), Ferguson et al.
patent: 4125269 (1978-11-01), Kiel
patent: 4200332 (1980-04-01), Brauning
patent: 4383714 (1983-05-01), Ishida
patent: 4544200 (1985-10-01), Dunn et al.
patent: 4572533 (1986-02-01), Ellis et al.
patent: 4597567 (1986-07-01), Racca
patent: 4641848 (1987-02-01), Ayers
patent: 4707026 (1987-11-01), Johansson
patent: 4712835 (1987-12-01), Volkle
patent: 4889384 (1989-12-01), Sulzer
patent: 4889385 (1989-12-01), Chadwick et al.
patent: 5004259 (1991-04-01), Ayers et al.
patent: 5154438 (1992-10-01), Barclay
patent: 5181762 (1993-01-01), Beumer
patent: 5348372 (1994-09-01), Takamatsu et al.
patent: 5727802 (1998-03-01), Garven et al.
patent: 5904398 (1999-05-01), Farricielli
patent: 5997021 (1999-12-01), Robinson et al.
patent: 6276704 (2001-08-01), Suiter
patent: 6382724 (2002-05-01), Piretti
patent: 6394476 (2002-05-01), Molnar
patent: 6419253 (2002-07-01), Mascari
patent: 6595584 (2003-07-01), Caldwell
patent: 2002/0043844 (2002-04-01), Hobb et al.
patent: 2005/0073129 (2005-04-01), Meyers et al.
patent: 2005/0116440 (2005-06-01), Bernatsky et al.
patent: 1 295 582 (2004-01-01), 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

Wheelchair having a pivot provision adjacent the knee of a user does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wheelchair having a pivot provision adjacent the knee of a user, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wheelchair having a pivot provision adjacent the knee of a user will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3765758

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