US5203581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baby walker
Assignee: Fisher Price Inc
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Filing: 1991-08-06
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Granted: 1993-04-20
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Expires: 2011-08-06
Abstract
Abstract A baby walker includes a seat supported by a tray for surrounding a child in a standing position, and permitting the walker to move with the child as he walks, and for supporting a child in a seated position, a friction pad on the walker for selectively engaging the surface upon which the walker is supported for selectively inhibiting movement of the walker, a plurality of supporting wheels on the walker for supporting the walker for rolling translation on the supporting surface, and an adjustable suspension coupled between the walker and one or more of the supporting wheels for selectively actuating one of three modes of operation, namely a first mode in which the friction pad engages the surface substantially continuously for inhibiting movement of the walker, a second mode in which the walker is movably supported on the wheels when the child is standing and is supported on the friction pad means for inhibiting translation when the child is seated, and a third mode in which the walker is continuously supported on the wheels for rolling translation over the surface.
Inventors
- 👤 Mark D. Jankowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:34
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/04; B60B33/045; A; A47; A47D; A47D13/00; A47D13/04; A47D13/043
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
245 words
A baby walker comprising: seat means for surrounding a child in a standing position for causing the walker to move with the child, and for supporting the child in a seated position; friction pad means on the walker for selectively engaging a surface upon which the walker is supported for inhibiting translation of the walker; a plurality of support wheels on the walker for supporting the walker for rolling translation on the supporting surface; adjustable suspension means coupled to one or more of the support wheels for selectively actuating one of three modes, the suspension means including a generally vertical stem connected to the wheel for allowing the wheel to move vertically; a housing surrounding the stem; spring means on the stem for resiliently biasing the stem to an extended position relative to the housing; and control means having cooperating surfaces for engaging an end of the stem opposite the wheel for selectively limiting the motion of the stem to actuate one of three modes; a first mode in which the friction pad means engage the surface substantially continuously for inhibiting translation of the walker; a second mode in which the walker is movably supported on the wheels when the child is in the standing position and is supported on the friction pad means for inhibiting translation when the child is in the seated position; and a third mode in which the walker is continuously supported on the wheels for rolling translation over the surface.
Claim 2
Dependent Claim
245 words
A baby walker comprising: seat means for surrounding a child in a standing position for causing the walker to move with the child, and for supporting the child in a seated position; friction pad means on the walker for selectively engaging a surface upon which the walker is supported for inhibiting translation of the walker; a plurality of support wheels on the walker for supporting the walker for rolling translation on the supporting surface; adjustable suspension means coupled to one or more of the support wheels for selectively actuating one of three modes, the suspension means including a generally vertical stem connected to the wheel for allowing the wheel to move vertically; a housing surrounding the stem; spring means on the stem for resiliently biasing the stem to an extended position relative to the housing; and control means having cooperating surfaces for engaging an end of the stem opposite the wheel for selectively limiting the motion of the stem to actuate one of three modes; a first mode in which the friction pad means engage the surface substantially continuously for inhibiting translation of the walker; a second mode in which the walker is movably supported on the wheels when the child is in the standing position and is supported on the friction pad means for inhibiting translation when the child is in the seated position; and a third mode in which the walker is continuously supported on the wheels for rolling translation over the surface.
Claim 3
Dependent Claim
39 words
The baby walker of claim 1 in which the plurality of support wheels comprises first and second support wheels mounted on the walker for continuous rolling support, and third and fourth support wheels mounted on said adjustable suspension means.
Claim 4
Dependent Claim
34 words
The baby walker of claim 2 in which the friction pad means is disposed between the first and second wheels, as a first group and the third and fourth wheels as a second group.
Claim 5
Dependent Claim
33 words
The baby walker of claim 1 in which the control means comprises a rotatable selection knob disposed generally above the one or more support wheels that are coupled to the adjustable suspension means.
Claim 6
Dependent Claim
83 words
The baby walker of claim 4, in which the rotatable selection knob comprises a control knob rotatably mounted on an axis adjacent to but spaced apart from the stem; the control knob including a control surface having three regions, a first region for engaging and retaining the stem in a fully retracted position, a second region for permitting the stem to move freely against the bias of the spring means, and a third region for holding the stem in a fully extended position.
Claim 7
Dependent Claim
22 words
The baby walker of claim 5, further comprising a washer on the stem for engaging the control surface in said third position.
References Cited (Backward Citations)
US1482953A
Cited
US4579359A
Cited
US4699392A
Cited
US4844209A
Cited
US4822030A
Cited
US5001808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-19 | 1996-10-19 | 1997-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-19 | 2000-10-19 | 2001-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-19 | 2004-10-19 | 2005-04-20 | $7700.00 | Window Closed / Lapsed |