Patent US3777834A successfully refreshed from Google Patents.
US3777834A
Expired / Lapsed
US
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Magnet vehicle
Assignee: Proterial Ltd
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Filing: 1972-02-10
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Granted: 1973-12-11
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Expires: 1992-02-10
Abstract
Abstract A magnet vehicle supportedly adhered to and adapted to run over an inclined wall surface of a structural member made of a strong magnetic material such as iron and steel, characterized in that said vehicle can be altered of its direction of travel as desired on said surface.
Inventors
- 👤 M Hiraoka
- 👤 Y Hikita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:31
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/06; B63B59/10; B23; B23K; B23K37/00; B23K37/02; B23K37/0264; B60; B60L; B60L13/00; B60L13/04; B61; B61C; B61C15/00; B61C15/04; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/26; B62D55/265; H; H01; H01F; H01F7/00; H01F7/06; H01F7/20; Y; Y02; Y02T; Y02T30/00; Y10; Y10S; Y10S180/00; Y10S180/901
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
156 words
A magnet vehicle for operating on the surface of iron or steel bodies, comprising a frame, a pair of endless track means located on either side of said frame adapted to be in contact with the surface for frictional driving of the vehicle, lateral magnet means provided between the upper run and the lower run of said endless track means, central magnet means disposed centrally of said frame and assisting said lateral magnet means to keep the vehicle attracted on the surface by the magnetic force thereof, displacement means for displacing said central magnet Means downwardly relative to said endless track means so that said magnetic vehicle can be supported on said surface solely by said central magnet means, steering means for rotating the remainder of said magnet vehicle relative to said central magnet means when said magnet vehicle is supported solely by said central magnetic means, and motor means for driving said endless track means.
Claim 2
Dependent Claim
156 words
A magnet vehicle for operating on the surface of iron or steel bodies, comprising a frame, a pair of endless track means located on either side of said frame adapted to be in contact with the surface for frictional driving of the vehicle, lateral magnet means provided between the upper run and the lower run of said endless track means, central magnet means disposed centrally of said frame and assisting said lateral magnet means to keep the vehicle attracted on the surface by the magnetic force thereof, displacement means for displacing said central magnet Means downwardly relative to said endless track means so that said magnetic vehicle can be supported on said surface solely by said central magnet means, steering means for rotating the remainder of said magnet vehicle relative to said central magnet means when said magnet vehicle is supported solely by said central magnetic means, and motor means for driving said endless track means.
Claim 3
Dependent Claim
86 words
A magnet vehicle as defined in claim 1 characterized in that said steering means for rotating the remainder of said vehicle relative to the central magnet means includes a ring gear fitted around the central magnet means and planetary gear means secured at one end of a shaft to be meshed with said ring gear, said shaft being rotatably journalled in a portion of said frame, another gear means secured at the other end of the shaft, and a motor for driving said another gear means.
References Cited (Backward Citations)
US2132661A
Cited
US3682265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |