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US4038775A Expired / Lapsed US ⏱️ 0.0 years remaining

Doll body with magnet and pole pieces and detachable appendages

Assignee: Takara Co Ltd
•
Filing: 1975-06-09
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Granted: 1977-08-02
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Expires: 1995-06-09
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Abstract

Abstract A doll is provided having a plurality of segments which are coupled operably but removably to each other. Each segment has a joint portion or portions which provide an articulation or a joint means in combination with a counterpart joint portion or portions of another segment, when assembled. The articulation or joint means comprises a magnet means built in one segment, and a counterpart joint portion of a magnetic material which is part of another segment. The magnet means comprises a permanent magnet and a pair of pole pieces formed with extension portions which provide magnetic gaps to the aforesaid counterpart portions of another segment, defining joint positions. The counterpart portion described is attracted to the aforesaid pair of pole pieces in the aforesaid joint position to allow for relative movement to the pole pieces.

Inventors

  • 👤 Yasuta Sato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 14:02
CPC Classifications
A; A63; A63H; A63H3/00; A63H3/36; A63H3/46; Y; Y10; Y10S; Y10S403/00; Y10S403/01

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 244 words
In a toy doll having a magnetic joint structure, the improvement comprising; a body member including a magnet, having at least two flat parallel surfaces, for producing magnetic flux; a plurality of removable appendage members having respectively spherical magnetizable joint portions, said appendage members configured and positioned on the body member to represent respectively a head, legs and arms; a first flat metal plate pole piece positioned on one parallel surface of said magnet and having a peripheral extension portion extending beyond said magnet; a second flat metal plate pole piece positioned on said other parallel surface of said magnet and having an identical configuration to said first pole piece including a peripheral extension portion extending beyond said magnet, the first pole piece being spaced separate and apart from said second pole piece; and a plurality of joint means formed between said first and second pole pieces and including a plurality of respective complementary arc like edge configurations on each of said respective peripheral extension portions and spaced outwardly from and about said magnet to receive and removably secure the appendage members in general configurational positions to represent the nexus of the body member to said head, arms and legs, said appendage members being rotatably movable relative to the body member when retained by a respective joint means, said joint means being capable of contacting and transmitting magnetic flux to said spherical magnetizable joint portions of said appendage members while permitting relative movement therebetween.
Claim 2
Dependent Claim 244 words
In a toy doll having a magnetic joint structure, the improvement comprising; a body member including a magnet, having at least two flat parallel surfaces, for producing magnetic flux; a plurality of removable appendage members having respectively spherical magnetizable joint portions, said appendage members configured and positioned on the body member to represent respectively a head, legs and arms; a first flat metal plate pole piece positioned on one parallel surface of said magnet and having a peripheral extension portion extending beyond said magnet; a second flat metal plate pole piece positioned on said other parallel surface of said magnet and having an identical configuration to said first pole piece including a peripheral extension portion extending beyond said magnet, the first pole piece being spaced separate and apart from said second pole piece; and a plurality of joint means formed between said first and second pole pieces and including a plurality of respective complementary arc like edge configurations on each of said respective peripheral extension portions and spaced outwardly from and about said magnet to receive and removably secure the appendage members in general configurational positions to represent the nexus of the body member to said head, arms and legs, said appendage members being rotatably movable relative to the body member when retained by a respective joint means, said joint means being capable of contacting and transmitting magnetic flux to said spherical magnetizable joint portions of said appendage members while permitting relative movement therebetween.
Claim 3
Dependent Claim 20 words
The invention of claim 1 further including a body configuration surrounding said magnet and said first and second pole pieces.
Claim 4
Dependent Claim 12 words
The invention of claim 2 wherein said magnet has a rectangular configuration.
Claim 5
Dependent Claim 19 words
The invention of claim 1 further including a plastic housing member operatively attached to and about said pole pieces.

References Cited (Backward Citations)

DE1027473B Cited
US2970388A Cited
DE1032613B Cited
US2963167A Cited
US3068615A Cited
US3090155A Cited
US3041697A Cited
FR1266884A Cited
US3375604A Cited
US3419832A Cited
US3827021A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-08-01 1981-01-31 1981-08-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-08-01 1985-01-31 1985-08-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-08-01 1989-01-31 1989-08-02 $7700.00 Window Closed / Lapsed

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