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 Title: |
US3905436:
Adjustable wheelchair
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Karchak, Jr., Andrew; Downey, CA
Allen, James R.; Downey, CA
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| Assignee: |
Wheelchairs, Inc., Paramount, CA
other patents from WHEELCHAIRS, INC. (626215) (approx. 1)
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| Published / Filed: |
1975-09-16
/ 1974-04-22
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| Application Number: |
US1974000462665
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| IPC Code: |
Advanced:
A61G 3/06;
B60N 2/00;
B60N 2/24;
A61G 5/04;
A61G 5/10;
IPC-7:
A61G 5/04;
B60N 1/08;
B62D 11/04;
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| ECLA Code: |
B60N2/24C; A61G3/06; B60N2/00; K61G5/04A6; K61G5/10S2; K61G5/12E; K61G5/12H; K61G220/14A;
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| U.S. Class: |
Current:
180/006.5;
180/907;
296/065.04;
297/071;
297/330;
297/DIG.004;
Original:
180/006.5;
180/DIG.3;
296/065.R;
297/071;
297/330;
297/DIG.4;
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| Field of Search: |
180/6.5,DIG. 3
296/65 R
297/071,330,DIG. 4
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| Priority Number: |
| 1974-04-22 |
US1974000462665 |
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| Abstract: |
An adjustable wheelchair includes A. A CARRIAGE INCLUDING SUPPORT WHEELS, B. A SEAT AND A SUPPORT FRAME THEREFOR, C. A MOTOR DRIVEN ELEVATOR AND GUIDES FOR SUPPORTING THE SEAT AND FRAME FOR MOVEMENT RELATIVE TO THE CARRIAGE WHILE MAINTAINING THE FRAME AND SEAT FIRMLY CONNECTED WITH THE CARRIAGE, AND D. THE FRAME INCLUDES A PORTION PROXIMATE THE SEAT CONFIGURED FOR RETENTION BY CHAIR RETAINING STRUCTURE INTEGRAL WITH A MOTOR VEHICLE BODY IN RESPONSE TO SEAT AND FRAME MOVEMENT RELATIVE TO THE CARRIAGE.
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| Attorney, Agent or Firm: |
Haefliger, William W. ;
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| Primary / Asst. Examiners: |
Schonberg, David; Pekar, John A.
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| Family: |
None
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First Claim:
Show all 7 claims |
We claim:
1. In an adjustable wheelchair,
- a. a carriage including support wheels,
- b. a seat and a support frame therefor,
- c. means supporting the seat and frame for movement relative to the carriage while maintaining the frame and seat firmly connected with the carriage, said means including a motor driven elevator mounted on the carriage and connected with the frame to raise and lower the seat, and linear guides also mounted on the carriage and connected with the frame to guide said raising and lowering of the seat and to block lateral movement of the seat and frame relative to the carriage, and
- d. the frame including a portion proximate the seat configured for retention by chair retaining structure integral with a motor vehicle body in response to said seat and frame movement relative to the carriage, said portion integral with the frame.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 24 U.S. patent(s) that reference this one
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