US3591976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Walking doll having legs with inwardly directed sections from which projections extend forwardly into a torso groove for pivotal mounting of the legs
Assignee: Individual
•
Filing: 1968-11-18
•
Granted: 1971-07-13
•
Expires: 1988-11-18
Abstract
Abstract A hollow doll''s torso has hip openings which receive inturned portions atop the doll''s legs. These portions mount the legs on the torso and have various radial protrusions. One protrusion, forward of the center of gravity of each leg when the leg is vertical, engages a recess in the doll body to form a hinge about which the leg swings forwardly when the torso is erect. The remaining protrusions serve as motion stops and guides in conjunction with formations within the doll''s torso. As the torso is rocked side-to-side and advanced, opposite legs alternately pivot forward to simulate walking.
Inventors
- 👤 Robert K Ostrander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:04
CPC Classifications
A; A63; A63H; A63H7/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
227 words
A walking doll having legs adapted to raise and lower in a stepwise fashion as the doll is moved across a supporting surface and tilted from side to side, said doll comprising a torso, a doll head and doll arms connected to said torso, opposed leg receiving openings located adjacent the lower end of said torso, a pair of legs each having a longitudinal axis and a foot positioned at the bottom of said leg, said legs being swivelably mounted to said torso by mounting means within said torso, each of said legs having a portion extending through and smaller than one of said openings, said leg portion projecting from the upper ends of said legs inwardly toward the interior of said torso, each said portion having an approximately horizontal axis, pivotal means within said torso suspending said legs forwardly of the respective centers of gravity of said legs, said pivotal means comprising a projection extending forwardly from the periphery of each said portion in a direction radially of said horizontal axis, a cooperating mating recess means within said torso whereby each of said legs will pivot about said pivotal means to a forward stepwise position when suspended above said supporting surface, and means within said torso cooperating with said legs for limiting the forward and rearward pivotal movement of said legs with respect to said torso.
Claim 2
Dependent Claim
227 words
A walking doll having legs adapted to raise and lower in a stepwise fashion as the doll is moved across a supporting surface and tilted from side to side, said doll comprising a torso, a doll head and doll arms connected to said torso, opposed leg receiving openings located adjacent the lower end of said torso, a pair of legs each having a longitudinal axis and a foot positioned at the bottom of said leg, said legs being swivelably mounted to said torso by mounting means within said torso, each of said legs having a portion extending through and smaller than one of said openings, said leg portion projecting from the upper ends of said legs inwardly toward the interior of said torso, each said portion having an approximately horizontal axis, pivotal means within said torso suspending said legs forwardly of the respective centers of gravity of said legs, said pivotal means comprising a projection extending forwardly from the periphery of each said portion in a direction radially of said horizontal axis, a cooperating mating recess means within said torso whereby each of said legs will pivot about said pivotal means to a forward stepwise position when suspended above said supporting surface, and means within said torso cooperating with said legs for limiting the forward and rearward pivotal movement of said legs with respect to said torso.
Claim 3
Dependent Claim
128 words
The walking doll of claim 1 wherein said means for limiting the pivotal movement of said legs includes for each of said portions a second projection extending radially of the horizontal axis of such portion and rearwardly from the periphery thereof, a cooperating mating first abutment within the said torso, said first abutment and said second projection being spaced from each other an arcuate distance when said leg is in a forward stepwise position and engaging one another when the leg is in its rearward stepwise position, the center of curvature of the arc of said arcuate distance being at said pivotal means, whereby when each leg is pivoted rearwardly said second projection will abut said first abutment after a predetermined degree of rotation from said forward position.
Claim 4
Dependent Claim
142 words
The walking doll of claim 2 wherein said means for limiting the pivotal movement of the legs further includes for each of said portions a second cooperating mating abutment positioned within said torso spaced from said first abutment in a position to contact said second projection when said leg is in its forward stepwise position, said second projection and said second abutment being spaced from each other a second arcuate distance when said leg is in a vertical position, the center of curvature of the arc of said second arcuate distance being at said pivotal means, said second projection abuttingly contacting said second abutment when said leg is suspended above said supporting surface and before said leg achieves a freely balanced fully suspended position whereby the said leg is prevented from oscillating or slowing at the end of a forward step movement.
Claim 5
Dependent Claim
85 words
The walking doll of claim 3 wherein said cooperating mating first abutment is positioned at one end of an arcuate channel, the center of curvature of the arc of said arcuate channel being at said pivotal means, said second projections lying within said arcuate channel, said second projections traversing arcuate paths of travel when each of said legs is pivoted from a vertical position to said forward stepwise position, the center of curvature of the arc of said arcuate path being at said pivotal means.
Claim 6
Dependent Claim
98 words
The walking doll of claim 2 including for each of said portions, a third projection extending radially of said horizontal axis of such portion and upwardly from the periphery thereof, parallel formations projecting within said torso, said third projection lying substantially between said parallel formations, said third projection traversing an arcuate path of travel when said leg is pivoted from a vertical position to said forward stepwise position, tHe center of curvature of the arc of said arcuate path being at said pivotal means, said paths of travel being substantially parallel and lying substantially between said parallel formations.
Claim 7
Dependent Claim
122 words
The walking doll of claim 5 wherein said means for limiting the pivotal movement of said legs with respect to said body further includes a pivot stop positioned within said torso, said pivot stop lying across said paths of travel and being spaced from said third projection a second arcuate distance when said leg is in a vertical position, the center of curvature of the arc of said second arcuate distance being at said pivotal means, said third projections engaging said pivot stop when each of said legs is suspended and before each of said legs achieves a fully balanced freely suspended position, whereby each of said legs is prevented from oscillating or slowing at the end of the forward step movement.
Claim 8
Dependent Claim
16 words
A walking doll of claim 6 wherein said pivot stop is positioned between said parallel formations.
Claim 9
Dependent Claim
29 words
The walking doll of claim 1 wherein the ends of said portions include a smooth flat wall on each portion, said flat walls being opposingly engaged within said torso.
Claim 10
Dependent Claim
85 words
The walking doll of claim 2 wherein said cooperating mating first abutment is positioned at one end of an arcuate channel, the center of curvature of the arc of said arcuate channel being at said pivotal means, said second projections lying within said arcuate channel, said second projections traversing arcuate paths of travel when each of said legs is pivoted from a vertical position to said forward stepwise position, the center of curvature of the arc of said arcuate path being at said pivotal means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |