Patent US4226413A successfully refreshed from Google Patents.
US4226413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel mounted walker with foot pedal brake
Assignee: Individual
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Filing: 1978-11-08
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Granted: 1980-10-07
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Expires: 1998-11-08
Abstract
Abstract A walker having a readily adjustable and disassemblable frame is equipped with two wheels in the rear and a centered lead wheel. The lead wheel, which is castored for increased directional stability, is equipped with a brake operated by a foot pedal. When the pedal is depressed, an axle on which the lead wheel rotates is forced toward the front of a pair of elongated slots in a wheel bracket. The top of the wheel then contacts a friction pad to apply a braking force. The user can depress the brake pedal with the toe of one foot without lifting the heel.
Inventors
- 👤 Wilma J. Daugherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:51
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/02; B60B33/021; A; A61; A61H; A61H3/00; A61H3/04; A61H2003/046; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/1614
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
231 words
A walker for providing support for a person who is standing or walking comprising: a rigid frame surrounding and defining a space in which said person can stand, said frame comprising a generally U-shaped horizontal lower member open at the rear, a generally U-shaped horizontal upper member open at the rear, a cross-piece that subtends the distance from one side of the lower member to the other, a generally horizontal strut that projects rearwardly from the center of said lower member to said cross-piece, and a plurality of vertical members extending downwardly from said upper member, one of said vertical members being connected to said strut; support means attached to said upper member for supporting said person; a pair of trailing wheels rotatably attached to said frame and disposed on opposite sides of said space; a wheel bracket centered with respect to said trailing wheels and disposed at the front of said space, said bracket including a substantially vertical shaft by which it is pivotably attached to said strut; a lead wheel rotatably attached to said bracket; and brake means for applying a braking force to said lead wheel, said brake means including a pedal for actuation thereof, said pedal extending from said wheel bracket beneath and past said cross-piece at a height that permits engagement thereof by the toe of said persons's foot without lifting the heel of said foot.
Claim 2
Dependent Claim
231 words
A walker for providing support for a person who is standing or walking comprising: a rigid frame surrounding and defining a space in which said person can stand, said frame comprising a generally U-shaped horizontal lower member open at the rear, a generally U-shaped horizontal upper member open at the rear, a cross-piece that subtends the distance from one side of the lower member to the other, a generally horizontal strut that projects rearwardly from the center of said lower member to said cross-piece, and a plurality of vertical members extending downwardly from said upper member, one of said vertical members being connected to said strut; support means attached to said upper member for supporting said person; a pair of trailing wheels rotatably attached to said frame and disposed on opposite sides of said space; a wheel bracket centered with respect to said trailing wheels and disposed at the front of said space, said bracket including a substantially vertical shaft by which it is pivotably attached to said strut; a lead wheel rotatably attached to said bracket; and brake means for applying a braking force to said lead wheel, said brake means including a pedal for actuation thereof, said pedal extending from said wheel bracket beneath and past said cross-piece at a height that permits engagement thereof by the toe of said persons's foot without lifting the heel of said foot.
Claim 3
Dependent Claim
69 words
The walker of claim 1 further comprising a horizontal axle on which said lead wheel is mounted, said wheel bracket defining a pair of parallel elongated slots in which said axle is movably received, and said brake means further including a friction pad disposed above said lead wheel, whereby said lead wheel can be brought into engagement with said pad by depressing said pedal to apply said braking force.
Claim 4
Dependent Claim
40 words
The walker of claim 1 wherein said vertical members each comprise at least two telescopically interrelated pieces and means for securing said pieces in a fixed position with respect to each other, whereby the height of said walker is adjustable.
Claim 5
Dependent Claim
18 words
The walker of claim 1 wherein said axle is offset rearwardly from the rotational axis of said shaft.
Claim 6
Dependent Claim
31 words
The walker of claim 1 further comprising a socket carried by said strut between said cross-piece and said vertical member connected to said strut, said shaft being received by said socket.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |