US4579359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baby walker with safety brake
Assignee: Dorel Co Ltd
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Filing: 1984-07-27
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Granted: 1986-04-01
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Expires: 2004-07-27
Abstract
Abstract A safety brake for a self-propelled child vehicle, such as a baby walker. The vehicle has a frame supported on wheels and the safety brake is constituted by a support rod pivotally secured at opposed connecting ends thereof to the frame and defining a vehicle support section and a bridge section between the support section and the connecting ends. The support rod is displaceable from a disengaged position, where the vehicle is freely displaceable on its wheels on a surface, to an engaged position, where the support section rests on the surface with at least some of the wheels lifted above the surface whereby to arrest the vehicle.
Inventors
- 👤 Leo Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:07
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/04; A47D13/043
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
187 words
A safety brake for a self-propelled baby walker vehicle, said vehicle having an annular shaped frame supported on a pair of wheels at a front and rear end portion of said frame, a seat section supported above and connected to said frame, said safety brake comprising a support rod pivotally secured at opposed connecting ends thereof to said frame adjacent at least one pair of said wheels, said support rod defining a vehicle support section and a bridge section between said support section and said connecting ends; said support rod being displaceable from a disengaged position, where said vehicle is freely displaceably on said wheels on a surface, to an engaged position where said support section rests on said surface with at least some of said wheels lifted above said surface whereby to arrest said vehicle, said frame when in said disengaged position being disposed in close proximity to an associated one of said front and rear portion of said frame and permitting unobstructed displacement of the legs of an infant seated on said seat section and extending into an inner area of said annular shaped frame.
Claim 2
Dependent Claim
187 words
A safety brake for a self-propelled baby walker vehicle, said vehicle having an annular shaped frame supported on a pair of wheels at a front and rear end portion of said frame, a seat section supported above and connected to said frame, said safety brake comprising a support rod pivotally secured at opposed connecting ends thereof to said frame adjacent at least one pair of said wheels, said support rod defining a vehicle support section and a bridge section between said support section and said connecting ends; said support rod being displaceable from a disengaged position, where said vehicle is freely displaceably on said wheels on a surface, to an engaged position where said support section rests on said surface with at least some of said wheels lifted above said surface whereby to arrest said vehicle, said frame when in said disengaged position being disposed in close proximity to an associated one of said front and rear portion of said frame and permitting unobstructed displacement of the legs of an infant seated on said seat section and extending into an inner area of said annular shaped frame.
Claim 3
Dependent Claim
51 words
A safety brake as claimed in claim 1 wherein said vehicle support section is a large U-shaped section of said support rod constituted by a straight rod section and opposed straight side sections disposed in a common plane, said bridge section being angulated between said side sections and said connecting ends.
Claim 4
Dependent Claim
50 words
A safety brake as claimed in claim 2 wherein said support rod also integrally defines a small inverted U-shaped section at the free end of said opposed side sections, said opposed connecting ends and bridge section being integrally formed in an outer side arm of said small inverted U-shaped section.
Claim 5
Dependent Claim
47 words
A safety brake as claimed in claim 3 wherein said small inverted U-shape section is disposed adjacent a respective one of said at least one pair of wheels with said large U-shaped section extending forwardly thereof under said frame when said support section rests on said surface.
Claim 6
Dependent Claim
56 words
A safety brake as claimed in claim 1 wherein said frame is a substantially rectangular frame, a structural bar secured under each side arm of said frame and extending substantially parallel to one another, said safety brake being pivotally secured to said structural bar and extending transversely therebetween adjacent at least a pair of said wheels.
Claim 7
Dependent Claim
30 words
A safety brake as claimed in claim 5 wherein there are two safety brakes, each safety brake being pivotally secured across said structural bars adjacent each pair of said wheels.
Claim 8
Dependent Claim
24 words
A safety brake as claimed in claim 6 wherein there is further provided retention means to retain said safety brakes in said disengaged position.
Claim 9
Dependent Claim
54 words
A safety brake as claimed in claim 7 wherein said frame is a rectangular frame of plastics material, said structural bar being a metal bar secured under said side arms of said plastic frame, said retention means being constituted by frictional engagement of said connecting ends of said safety brake with said structural bars.
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) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |