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US4045045A Expired / Lapsed US ⏱️ 0.0 years remaining

Foldable child walker

Assignee: BROW GROUP RECREATIONAL PRODUCTS INC
•
Filing: 1976-04-01
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Granted: 1977-08-30
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Expires: 1996-04-01
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Abstract

Abstract A foldable child walker includes two inverted U-shaped frame members pivotally joined at intermediate points in a scissor-like fashion. The lower, or free, ends of the legs of the frame members are pivotally mounted to an annular base supported on a plurality of castered wheels. A flexible seat is suspended from the upper lateral portions of the frame members. Various mechanisms allow folding of the walker into a flat, compact package, convenient for storage or carrying. For example, in one embodiment, one of the two frame members has telescoping legs which are locked in selected positions of adjustment by spring-loaded release buttons to maintain the walker in selected upright positions above the base. When the walker is unoccupied, each button can be released to fold the frame members into a flat position against the base. In another embodiment, the legs in one of the two frame members are articulated below the pivotal connection the other frame member. Suitable locks are provided to maintain the legs extended in each so that the walker remains upright. To fold the walker, the locks are released allowing the legs to break so that the frame members are moved into a flat position against the base. In still another embodiment, the base is composed of two semicircular base members hinged together by knuckle joints. The knuckle joints allow the base members can be folded in only one direction, i.e. by moving the base members so that their lower surfaces face each other. Folding the base members in this manner also folds the frame members into a flat position in essentially the same plane as the folded base members. Each embodiment of the walker can be modified to serve as a bouncer.

Inventors

  • 👤 Raymond W. Boucher
  • 👤 William H. Ziegler, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 05:16
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/04; A47D13/043

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 41 words
A child walker comprising A. an annular base, B. a plurality of wheels mounted at space locations on said base, C. a supporting frame including 1. first and second interfitting frame members, each said member including a pair of legs, 2.
Claim 2
Dependent Claim 41 words
A child walker comprising A. an annular base, B. a plurality of wheels mounted at space locations on said base, C. a supporting frame including 1. first and second interfitting frame members, each said member including a pair of legs, 2.
Claim 3
Dependent Claim 201 words
means for pivotally connecting each leg of said first member to an adjacent leg of said second member intermediate the ends of the legs, 3. means for pivotally mounting corresponding ends of said first and second frame members to spaced positions on said base, and 4. the legs of at least one of said frame members being composed of telescoping first and second sections, D. a seat supported between the opposite ends of the legs of said first and second frame members, E. means for maintaining said first and second frame members upright above said base, said maintaining means including 1. means for defining at least two spaced apertures extending through the wall of one of said upper and lower leg sections, and 2. a spring loaded release button mounted in the wall of the other of said upper and lower leg sections and positioned to selectively engage in one of said apertures so that the frame members are maintainable at at least two different levels above said base, said button being retractable from one aperture to release the maintaining means and fold the walker so that the frame members fold into a relatively flat position in more or less the
Claim 4
Dependent Claim 201 words
means for pivotally connecting each leg of said first member to an adjacent leg of said second member intermediate the ends of the legs, 3. means for pivotally mounting corresponding ends of said first and second frame members to spaced positions on said base, and 4. the legs of at least one of said frame members being composed of telescoping first and second sections, D. a seat supported between the opposite ends of the legs of said first and second frame members, E. means for maintaining said first and second frame members upright above said base, said maintaining means including 1. means for defining at least two spaced apertures extending through the wall of one of said upper and lower leg sections, and 2. a spring loaded release button mounted in the wall of the other of said upper and lower leg sections and positioned to selectively engage in one of said apertures so that the frame members are maintainable at at least two different levels above said base, said button being retractable from one aperture to release the maintaining means and fold the walker so that the frame members fold into a relatively flat position in more or less the
Claim 5
Dependent Claim 24 words
same plane as said base. 2. The walker defined in claim 1 and further including means for resiliently supporting the seat on said base.
Claim 6
Dependent Claim 43 words
The walker defined in claim 2 wherein A. the legs of the other frame member are composed of telescoping first and second sections, and B. the resilient supporting means includes means for biasing said first and second leg sections toward their extended positions.
Claim 7
Dependent Claim 29 words
The walker defined in claim 1 and further including A. a tray, and B. means for mounting the tray on one of said frame members adjacent to said seat.
Claim 8
Dependent Claim 62 words
A child walker as recited in claim 11 A. in which each of the legs of the other frame member is composed of telescoping upper and lower sections, and B. further including means for biasing the upper and lower sections of each leg away from one another whereby a bouncing movement may be imparted to said seat means relative to said base.

References Cited (Backward Citations)

CA651548A Cited
US2616718A Cited
US2884046A Cited
US3145048A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-08-29 1981-02-28 1981-08-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-08-29 1985-02-28 1985-08-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-08-29 1989-02-28 1989-08-30 $7700.00 Window Closed / Lapsed

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