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Title: US4708686: Eccentrically weighted rolling device returns uphill
[ Derwent Title ]


Country: US United States of America

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5 pages

 
Inventor: Smith, Samuel C.; Newton Centre, MA 02159

Assignee: None

Published / Filed: 1987-11-24 / 1983-10-17

Application Number: US1983000542681

IPC Code: Advanced: A63H 3/00; A63H 15/06;
Core: A63H 15/00; more...
IPC-7: A63H 29/10;

U.S. Class: Current: 446/166; 446/167; 446/267; 446/458;
Original: 446/166; 446/167; 446/267; 446/458;

Field of Search: 446/166,167,171,174,168,267,396,431,443,444,442,458,465,491,273,325,324 272/8 R,8 N 236/052 434/300,302,446

Priority Number:
1982-02-22  US1982000351114

Abstract: A sealed container with a movable weight therein is eccentrically mounted within a light rollable object on a guideway. Liquid mercury, powered metal, or metal pellets or spheres would move within the container to shift the center of gravity. Maintaining the center of gravity of the weight to the uphill side of a vertical extension of the tangent between the rolling object and the guideway will enable the rolling object to return uphill after rolling down within a limit, thereby seeming to defy the law of gravity.

Attorney, Agent or Firm: Meeker, Donald W. ;

Primary / Asst. Examiners: Yu, Mickey;

Maintenance Status: E1 Expired  Check current status

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Related Applications:
Application Number Filed Patent Pub. Date  Title
US1982000351114 1982-02-22    1983-10-25  Educational toy doll with weight tending to return head


       
Parent Case:

CROSS-REFERENCE TO RELATED APPLICATION
    This is a continuation-in-part of application Ser. No. 06/351,114, filed 02/22/82 (U.S. Pat. No. 4,411,096 to issue on 10/25/83).

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First Claim:
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Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:     1. A gravity actuated return motion rolling device comprising:
  • a rollable object generally curved convexly on an exterior rolling surface, which rollable object is of light weight;
  • eccentrically positioned relative to the center of gravity within the rollable object, a relatively heavyweight secured adjacent to an edge of the rolling surface;
    a guideway exterior to the rolling object, along which guideway the rolling object is free to roll within a controlled limit;
  • wherein the rolling object is positioned at rest with the eccentric weight oriented so that when the object is rolled along the guideway within the limit, the eccentric weight will produce a torque in the rolling object to return the rolling object back over the guideway to its original rest position wherein the weight comprises an enclosed container with a movable heavy mass of material contained therein, wherein the container is secured in close proximity to the rolling surface with the center of gravity of the mass within the container located away from the center of gravity of the rollable object, and wherein the weight protrudes beyond the rolling surface and the guideway further comprises an opening therein to receive the protruding weight in the at rest position.


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Forward References: Show 3 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (3)   |   Backward references (5)   |   Citation Link

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PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 3pp US2100372* 1937-11 Barton    
Get PDF - 3pp US2499743* 1950-03 Goodman    
Get PDF - 3pp US2585780* 1952-02 Johnson    
Get PDF - 5pp US3564733  1971-02 Field et al.   EDUCATIONAL DEVICE
Get PDF - 5pp US4205483  1980-06 Clark et al.   Delayed return devices
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Foreign References:
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PDF
Publication Date IPC Code Assignee   Title
  FR0555328 1923-06       
Buy PDF GB1442582 1976-07  A63H 15/00 TUNG HOI PLASTIC CO TOY 


Other Abstract Info: DERABS G83-814175

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