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 Title: |
US4477117:
Wheel chairs
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Higgs, Arthur B.; Unley Park, South Australia, Australia
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| Assignee: |
None
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| Published / Filed: |
1984-10-16
/ 1981-07-22
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| Application Number: |
US1981000287733
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| IPC Code: |
Advanced:
A61G 5/00;
A61G 5/02;
A61G 5/08;
A61G 5/10;
A61G 5/14;
A61G 5/12;
IPC-7:
A47C 4/28;
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| ECLA Code: |
A61G5/10S2; A61G5/08; K61G5/08A2X; K61G5/12H;
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| U.S. Class: |
Current:
297/045;
280/250.1;
297/DIG.004;
Original:
297/045;
297/DIG.4;
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| Field of Search: |
297/045,DIG. 4,347,348
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| Priority Number: |
| 1979-11-22 |
AU1979000001447 |
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| Abstract: |
PCT No. PCT/AU80/00095 Sec. 371 Date Jul. 22, 1981 Sec. 102(e) Date Jul. 22, 1981 PCT Filed Nov. 21, 1980 PCT Pub. No. WO81/01365 PCT Pub. Date May 28, 1981.A folding wheel chair having means (22) to elevate the seat (11) and back rest portion relative to the main frames (2) of the wheel chair is disclosed. The seat portion (11) is mounted to be vertically slidable on a pair of side frames (16). The lower portion of the side frames and the seat portion are interconnected by cross struts. Means (22) elevate the side frames relative to the main frame which carries the wheels (7,8) of the wheel chair so that on elevating the side frames, the side frames and the seat portion (11) raise as a unit together with the cross struts to maintain the wheel chair in the unfolded condition.
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| Attorney, Agent or Firm: |
Huebner, Harlan P. ;
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| Primary / Asst. Examiners: |
Zugel, Francis K.;
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| INPADOC Legal Status: |
None
Family Legal Status Report
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| Designated Country: |
AU EP JP US GB
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| Family: |
Show 12 known family members
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First Claim:
Show all 3 claims |
I claim:
1. A folding wheel chair comprising:
- a pair of spaced parallel main frames each carrying a real wheel and a forward wheel;
- a seat and back rest frame vertically slidable relative to the main frames;
- a flexible seat and back rest carried by said seat and back rest frame;
- a side frame between each of said main frames and said seat and back rest frame, each said side being vertically slidably mounted on guides on each respective main frame;
- cross strut stabilizing means interconnecting a lower portion of each of the side frames to the seat and back rest frame;
- elevating means connected between said side frames and said main frames to raise said side frames relative to said main frames to thus raise said seat and back rest portion relative to said main frames while maintaining said frames in spaced parallel relationship, whereupon on folding the said chair said seat and back rest frame rises relative to the side frames through cooperating movement of said cross strut stabilizing means.
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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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| PCT Number: |
PCT/AU80/00095
WO8101365
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| PCT Pub./Filed Dates: |
1981-05-28 / 1980-11-21
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| § 371 / 102(e) Dates: |
1981-07-22 / 1981-07-22
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| Forward References: |
Show 24 U.S. patent(s) that reference this one
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