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 Title: |
US4018440:
Invalid walker with wheel control mechanism
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Deutsch, Fritz A.; Euclid, OH 44132
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| Assignee: |
None
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| Published / Filed: |
1977-04-19
/ 1975-03-31
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| Application Number: |
US1975000563615
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| IPC Code: |
Advanced:
A61H 3/04;
Core:
A61H 3/00;
IPC-7:
A61G 13/00;
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| ECLA Code: |
A61H3/04; K61H3/04B;
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| U.S. Class: |
Current:
482/068;
188/031;
188/167;
D12/130;
Original:
272/070.3;
188/031;
188/167;
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| Field of Search: |
272/70.3
135/049
188/031,60,69,167,110,176
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| Priority Number: |
| 1975-03-31 |
US1975000563615 |
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| Abstract: |
A walker to aid an invalid is disclosed. The walker includes a frame mounted on at least one wheel to allow the walker to roll along the floor. The frame and at least one wheel have coacting lock-catch-and-release means arranged such that when the user pushes down on the frame the lock will release and allow the walker to roll a measured, predetermined distance and thereat lock. Further movement is prevented until the frame is released and pressure again applied.
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| Attorney, Agent or Firm: |
Pyle, Ray S. ;
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| Primary / Asst. Examiners: |
Pinkham, Richard C.; Brown, T.
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| Family: |
None
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First Claim:
Show all 3 claims |
What is claimed is:
1. A walker device, comprising, a frame having a plurality of support points, roller means for providing full mobility of the device, releasable lock means on said roller means, lock release means operatively associated with said lock means,
- means initiated by a user and thereafter independent of operator control for actuating said lock means and said lock release means through a cycle which includes a lock release and subsequent reengagement of the lock whereby the user is free from control judgement over the distance the walker will advance after lock release;
- said roller means being a wheel with a drum carried thereby,
- said lock means being a series of aligned holes spaced circumferentially around said drum, and a retractable lock pin insertable in any aligned hole in said drum,
- said drum having a plurality of laterally spaced circumferential paths of holes therealong, each path having a different number of holes, and means to selectively and manually position said pin in alignment with one of said paths, whereby a lock cycle will release the wheel for advance a distance represented by the circumference of the wheel divided by the number of said holes in the selected path.
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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 63 U.S. patent(s) that reference this one
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