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US4474202A Expired / Lapsed US ⏱️ 0.0 years remaining

Walker device

Assignee: Individual
•
Filing: 1982-05-17
•
Granted: 1984-10-02
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Expires: 2002-05-17
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Abstract

Abstract A walker device for aiding crippled or infirm persons to walk and to rise from a sitting position to a standing position. The walker device includes a mechanism located at floor level and secured to the legs of the device for applying foot pressure to the frame of the walker as the person rises from a sitting position to a standing position.

Inventors

  • 👤 Ralph Blechner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 21:12
CPC Classifications
A; A61; A61H; A61H3/00

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 243 words
A walker device for aiding a person to walk and to rise from a sitting position to a standing position, the device comprising: a frame including two inverted U-shaped members defining four generally upright legs, each said leg including a bottom end portion, bracing means extending between said U-shaped members including at least one bracing member located at the upper region of the U-shaped members, one said U-shaped member forming a left side of said walker device and said other U-shaped member forming a right side of said walker device, said walker device further including for each said side a rigid flat plate located at floor level and secured rigidly to the end portions of its respective legs, each said plate including a generally flat upper surface for enabling stable placement of said persons foot thereon, said legs end portions setting on said flat upper surface, each said side having a rear leg rigidly secured to said plate to provide for imposition of foot force on said plate to resist pivoting of said walker device about said rear legs when said frame is pulled rearwardly, and for each said U-shaped member a generally horizontally disposed support brace extending between said legs, and located at the lower region of the U-shaped members, said support brace extending generally parallel to and spaced from its respective plate to provide a space between said plate and said support brace for insertion of the foot of said person.
Claim 2
Dependent Claim 243 words
A walker device for aiding a person to walk and to rise from a sitting position to a standing position, the device comprising: a frame including two inverted U-shaped members defining four generally upright legs, each said leg including a bottom end portion, bracing means extending between said U-shaped members including at least one bracing member located at the upper region of the U-shaped members, one said U-shaped member forming a left side of said walker device and said other U-shaped member forming a right side of said walker device, said walker device further including for each said side a rigid flat plate located at floor level and secured rigidly to the end portions of its respective legs, each said plate including a generally flat upper surface for enabling stable placement of said persons foot thereon, said legs end portions setting on said flat upper surface, each said side having a rear leg rigidly secured to said plate to provide for imposition of foot force on said plate to resist pivoting of said walker device about said rear legs when said frame is pulled rearwardly, and for each said U-shaped member a generally horizontally disposed support brace extending between said legs, and located at the lower region of the U-shaped members, said support brace extending generally parallel to and spaced from its respective plate to provide a space between said plate and said support brace for insertion of the foot of said person.
Claim 3
Dependent Claim 27 words
A walker device according to claim 1 wherein each said plate includes an upper surface having thereof means for reducing slippage between said foot and said plate.
Claim 4
Dependent Claim 28 words
A walker device according to claim 2 wherein said means for reducing slippage comprises a sheet of resilient material adhered to said upper surface of each said plate.
Claim 5
Dependent Claim 38 words
A walker device according to claim 1 wherein said plate includes at one end thereof a segment that extends past said rear leg, said segment resisting pivoting of said frame about the end portion of said rear leg.
Claim 6
Dependent Claim 58 words
A walker device according to claim 4 wherein said bracing member extends between and is rigidly secured with respect to the upper portion of the front legs of said frame, said bracing member being graspable by the person using the walker device to enable said person to pull himself upwardly from a sitting position to a standing position.
Claim 7
Dependent Claim 34 words
A walker device according to claim 5 wherein each said plate includes a front segment extending past its respective front leg to resist pivoting of the frame about the front leg of the device.
Claim 8
Dependent Claim 47 words
A walker device according to claim 5 wherein for each said rear segment, an L-shaped supporting bracket is provided, one portion of said L-shaped bracket being secured to said plate, said other portion of said L-shaped support extending adjacent said rear leg and secured with respect thereto.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-10-02 1988-04-02 1988-10-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-10-02 1992-04-02 1992-10-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-10-02 1996-04-02 1996-10-02 $7700.00 Window Closed / Lapsed

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