 |
|
|
|
|
|
 Title: |
US6601863:
Mid-wheel drive wheelchair with rigid front wheel anti-tip stabilizer
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Mentessi, Roland A.; North Royalton, OH
Jindra, John O.; Elyria, OH
Hunt, Jason D.; Ann Arbor, MI
Miadock, James R.; Lorain, OH
|
| Assignee: |
Invacare Corporation, Elyria, OH
other patents from INVACARE CORPORATION (283780) (approx. 110)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
2003-08-05
/ 1999-07-02
|
| Application Number: |
US1999000347208
|
| IPC Code: |
Advanced:
A61G 5/04;
A61G 5/06;
A61G 5/10;
A61G 5/08;
IPC-7:
C10G 25/06;
|
| ECLA Code: |
A61G5/10; A61G5/04A4; A61G5/06; K61G5/10Z5; K61G5/04A2; K61G5/06; K61G5/08; K61G5/10G; K61G5/10Z2; K61G5/10Z6; K61G203/14;
|
| U.S. Class: |
280/304.1;
280/250.1;
280/788;
180/907;
|
| Field of Search: |
280/304.1,250.1,788
180/907
297/300.1,130
|
| Priority Number: |
| 1999-07-02 |
US1999000347208 |
|
| Abstract: |
A mid-wheel drive wheelchair can have various suspensions for the drive wheel such as a rigid connection to the wheelchair frame or a resilient connection thereto. The wheelchair has at least one anti-tip front wheel stabilizer, which is rigidly, i.e. non-resiliently, connected to the frame and accordingly the wheelchair frame moves up and down with the anti-tip wheel upon encountering a bump, hill, etc. The height of the anti-tip wheel above the travel surface is adjustable and accordingly the wheel can be set to a specific height.
|
| Attorney, Agent or Firm: |
Calfee, Halter & Griswold LLP ;
Pejic, Nenad ;
|
| Primary / Asst. Examiners: |
Dickson, Paul N.; To, Toan C
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
|
|
|
|
|
|
| Parent Case: |
CROSS REFERENCE
This patent application is a continuation-in-part of U.S. Ser. No. 09/163,782, filed Sep. 30, 1998, now U.S. Pat No. 6,073,951 entitled Articulating Seat/Chassis Interface For A Wheelchair, which in turn is a continuation application of U.S. Provisional Application No. 60/060,952, filed Oct. 6, 1997.
|
| Designated Country: |
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE AU CA EP AU CA EP NZ
|
| Family: |
Show 13 known family members
|
First Claim:
Show all 11 claims |
What is claimed is:
1. A mid-wheel drive wheelchair, comprising:
- a frame,
- a pair of drive wheels rotatably attached to said frame, at least one wheel located rearwardly of said drive wheels and operatively and rotatably attached to said frame,
- at least one rotatable front anti-tip wheel located forward of said drive wheels and located at a height above a drive surface, said front anti-tip wheel rigidly attached to said frame operatively through a strut which prevents said rotatable front anti-tip wheel from moving resiliently during operation of said wheelchair, and
- a link, a forward portion of said link operatively connected to a bottom portion of said strut, and a rearward portion of said link operatively connected to a different portion of said wheel chair frame than said strut connection portion.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 12 U.S. patent(s) that reference this one
|
|
