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 Title: |
US4460190:
Hand propelled wheelchair
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Spiess, Erick M.; Las Vegas, NV 89107
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| Assignee: |
None
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| Published / Filed: |
1984-07-17
/ 1982-07-02
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| Application Number: |
US1982000394651
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| IPC Code: |
Advanced:
A61G 5/02;
Core:
A61G 5/00;
IPC-7:
B62M 1/14;
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| ECLA Code: |
A61G5/02A4; A61G5/02B2; K61G5/10G;
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| U.S. Class: |
Current:
280/247;
280/269;
Original:
280/247;
280/269;
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| Field of Search: |
280/244,242 WC,267,269,282,247,256
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| Priority Number: |
| 1982-07-02 |
US1982000394651 |
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| Abstract: |
A three wheeled wheelchair wherein two of the wheels are leading wheels with the single wheel being a trailing wheel. The wheelchair is propelled through the use of a chain drive assembly which is to be manually operated through the use of a handle assembly. Adjacent the handle assembly is a seat which is to support the occupant of the wheelchair. The seat is cushionly supported by a shock absorber assembly. The handle assembly is attached to a steering mechanism which, through lateral movement of the handle assembly, causes the leading wheels to be turned in respect to the frame of the wheelchair. A separate turning wheel assembly is to be manually movable to an extended position to cause the trailing wheel to be spaced from the supportive surface thereby permitting three hundred and sixty degree turning of the wheelchair about a single point.
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| Attorney, Agent or Firm: |
Munro, Jack C. ;
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| Primary / Asst. Examiners: |
Pekar, John A.;
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 9 claims |
What is claimed is:
1. A wheelchair comprising:
- a frame;
- a pair of spaced apart leading wheels rotatably mounted on said frame;
- a single trailing wheel rotatably mounted on said frame;
- a seat mounted by mounting means on said frame, said seat being located forward of said trailing wheel and between said leading wheels;
- a chain drive assembly mounted on said frame and connected to said trailing wheel, said chain drive assembly for affecting rotation of said trailing wheel and movement of said wheelchair in respect to a supportive surface; and
- torque applying means mounted on said frame connected to said chain drive assembly, said torque applying means including a graspable handle assembly located directly adjacent said seat, longitudinal oscillatory movement of said graspable handle assembly operates through said chain drive assembly to rotate said trailing wheel, said torque applying means being connected to said leading wheels, lateral movement of said graspable handle assembly results in turning of said leading wheels for changing the direction of movement of said wheelchair.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 12 U.S. patent(s) that reference this one
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