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 Title: |
US4592570:
Ultra light wheelchair
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Nassiri, Joe-Massoud; Thousand Oaks, CA
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| Assignee: |
Everest & Jennings, Camarillo, CA
other patents from EVEREST + JENNINGS, INC. (184725) (approx. 46)
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| Published / Filed: |
1986-06-03
/ 1983-10-27
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| Application Number: |
US1983000545882
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| IPC Code: |
Advanced:
A61G 5/00;
A61G 5/08;
A61G 5/10;
IPC-7:
A61G 5/02;
B62M 1/14;
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| ECLA Code: |
A61G5/00; K61G5/10Z3; K61G5/10Z8; K61G5/08A6; K61G5/08R;
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| U.S. Class: |
Current:
280/650;
280/250.1;
297/378.12;
297/DIG.004;
Original:
280/650;
280/242.WC;
280/289.WC;
297/DIG.4;
297/379;
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| Field of Search: |
280/647,650,242 WC,289 WC,657,661,281 LP
297/DIG. 4,345,346,311,328,355,379,51
180/907
248/394,188.2,345.1
016/038,39,31 A
293/125
296/020
403/DIG. 4
301/5.7
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| Priority Number: |
| 1983-10-27 |
US1983000545882 |
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| Abstract: |
The ultra light chair is designed for greater stability, higher performance, higher efficiency and overall better appearance than conventional chairs. A seat frame is provided separate from the main frame with seat mountings permitting longitudinal, tilt and height adjustments of the seat on the main frame. Unique wheel mountings permit simple manual removal and attachment of the wheels to the main frame, using only one hand. The same wheel mountings permit adjustment of the camber angle of each wheel relative to a vertical plane so that propelling and maneuvering of the wheelchair can be made easier than in the absence of any camber. The seat back for the chair is designed to fold down over the seat frame so that this feature in combination with easy removal of the wheels provides for compact storage during travel.
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| Attorney, Agent or Firm: |
Pastoriza, Kelly & Lowry ;
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| Primary / Asst. Examiners: |
Love, John J.; Dukes, Mark
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
Show 5 known family members
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First Claim:
Show all 22 claims |
I claim:
1. An ultra light wheelchair including, in combination:
- (a) a main frame;
- (b) a seat frame;
- (c) means for attaching said seat frame to said main frame in a plurality of different longitudinal locations, tilt angles, and heights relative to said main frame;
- (d) a back frame;
- (e) coupling means including pivot means for pivoting the back frame to the rear of said seat frame so that the back frame can be folded down forwardly to overlie the seat frame;
- (f) left and right main wheels;
- (g) means for manually attaching and detaching said main wheels to said main frame; and
- (h) caster wheel means attached to said main frame forward of the main wheels whereby the back frame can be folded down over the seat frame and the main wheels detached from the main frame to enable compact storage of the wheelchair components during travel.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 65 U.S. patent(s) that reference this one
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