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 Title: |
US4457526:
Wheel assembly
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Persson, Kjell O.; S-280 10 Sosdala, Sweden
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| Assignee: |
None
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| Published / Filed: |
1984-07-03
/ 1982-06-08
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| Application Number: |
US1982000387875
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| IPC Code: |
Advanced:
B60B 37/00;
B60B 37/04;
B60B 37/10;
B62B 5/02;
Core:
more...
IPC-7:
B62B 5/02;
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| U.S. Class: |
Current:
280/005.26;
305/001;
Original:
280/005.26;
305/001;
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| Field of Search: |
280/5.26
180/8 A,8 B,8 R
305/001
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| Priority Number: |
| 1980-10-10 |
SE1980000007101 |
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| Abstract: |
A wheel assembly for driven or non-driven trolleys or the like, comprising at least one set of wheels (10, 11) having at least three wheels (11) which are mounted on the trolley by a bearing means (13). The bearing means (13) has a center of rotation (C) which is located on the axial center line of the set of wheels (10, 11) and is connected to the trolley, at a distance from this center of rotation (C). When the wheels (11) encounter an abstacle as the trolley is run, the bearing means (13) will rotate relative to the set of wheels (10, 11), which causes shifting of the center of gravity so as to permit the set of wheels to climb over the abstract without the need of any appreciable additional effort.
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| Attorney, Agent or Firm: |
Fleit, Jacobson, Cohn & Price ;
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| Primary / Asst. Examiners: |
Pekar, John A.;
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| Maintenance Status: |
E3 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
AT CH DE FR GB NL DK EP FI JP NO US
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| Family: |
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First Claim:
Show all 3 claims |
I claim:
1. A wheel assembly comprising:
- a holder;
- a least three wheels rotatably mounted on the holder equidistantly around the periphery thereof;
- a circular bearing means rotatably carried by the holder and having its center axis coincident with the axis of rotation of the holder; and
- a frame connected to the circular bearing means at a radial distance from the center of the bearing means.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| PCT Number: |
PCT/SE81/00293
WO8201356
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| PCT Pub./Filed Dates: |
1982-04-29 / 1981-10-09
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| § 371 / 102(e) Dates: |
1982-06-08 / 1982-06-08
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| Forward References: |
Show 8 U.S. patent(s) that reference this one
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