US4044784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Walking aid cane
Assignee: Guardian Products Inc
•
Filing: 1976-03-01
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Granted: 1977-08-30
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Expires: 1996-03-01
Abstract
Abstract A low profile, low center of gravity walking aid cane construction with a central support member having its lower end rigidly connected to four legs. The four legs each have a body portion and a foot portion with the body portions positioned generally transverse to the support member and with the foot portions of the legs depending downwardly from the outer ends of the body portions for contact with a supporting surface. The extremities of the foot portions lie in a plane that is generally transverse to the support member and the extremities are positioned generally at the corners of a rectangle within this plane. The inner legs which terminate at the inner corners of the rectangle are shorter than the legs which terminate at the outer corners and support means provide support for supported lengths of the body portions of the legs. The support means is shaped and positioned to provide unsupported lengths of the body portions of the legs which have a substantially equal resistance to bending forces.
Inventors
- 👤 Alfred A. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:35
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/02; A45; A45B; A45B7/00; A61H2003/0205
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
387 words
A walking aid cane construction comprising: a central support member having an upper end, a lower end and a longitudinal axis; four legs rigidly connected to said lower end for contact with a supporting surface; each of said legs having a body portion and a foot portion; the body portions of said legs being generally transversely connected to said member with the foot portions depending downwardly from the outer ends of the body portions for contact with a supporting surface; said support member having an inner region that faces the user's leg and an outer region that faces away from the user's leg; said foot portions having lower ends which are positioned in a plane that is generally transverse to said support member with said lower ends positioned generally at the corners of a rectangle within said plane; said support member having a front region which faces generally in the direction of movement of the user and a rear region which faces generally in a reverse direction to said direction of movement; said rectangle having a front side and a rear side which are generally parallel and are positioned generally transverse to the direction of movement of the user; said rectangle having an inner side and an outer side which are generally parallel and are positioned generally in alignment with the direction of movement of the user; said inner side being positioned closer to the axis of said support member than said outer side and said front side and said rear side being positioned at about the same distance from the axis of said member; said rectangle having inner corners formed by intersection of said inner side with said front and rear sides and outer corners formed by the intersection of said outer side with said front and rear sides; the body portions of the legs which terminate at said inner corners being shorter than the body portions of the legs which terminate at said outer corners; handle means adjustably connected to said support member for vertical positioning with respect thereto and being aligned with the direction of travel, and support means to provide support for supported lengths of said body portions with the support means being shaped and positioned to provide unsupported lengths of the body portions which have a substantially equal resistance to bending forces.
Claim 2
Dependent Claim
387 words
A walking aid cane construction comprising: a central support member having an upper end, a lower end and a longitudinal axis; four legs rigidly connected to said lower end for contact with a supporting surface; each of said legs having a body portion and a foot portion; the body portions of said legs being generally transversely connected to said member with the foot portions depending downwardly from the outer ends of the body portions for contact with a supporting surface; said support member having an inner region that faces the user's leg and an outer region that faces away from the user's leg; said foot portions having lower ends which are positioned in a plane that is generally transverse to said support member with said lower ends positioned generally at the corners of a rectangle within said plane; said support member having a front region which faces generally in the direction of movement of the user and a rear region which faces generally in a reverse direction to said direction of movement; said rectangle having a front side and a rear side which are generally parallel and are positioned generally transverse to the direction of movement of the user; said rectangle having an inner side and an outer side which are generally parallel and are positioned generally in alignment with the direction of movement of the user; said inner side being positioned closer to the axis of said support member than said outer side and said front side and said rear side being positioned at about the same distance from the axis of said member; said rectangle having inner corners formed by intersection of said inner side with said front and rear sides and outer corners formed by the intersection of said outer side with said front and rear sides; the body portions of the legs which terminate at said inner corners being shorter than the body portions of the legs which terminate at said outer corners; handle means adjustably connected to said support member for vertical positioning with respect thereto and being aligned with the direction of travel, and support means to provide support for supported lengths of said body portions with the support means being shaped and positioned to provide unsupported lengths of the body portions which have a substantially equal resistance to bending forces.
Claim 3
Dependent Claim
17 words
The cane construction of claim 1 wherein said legs and said support means form an integral structure.
Claim 4
Dependent Claim
30 words
The cane construction of claim 1 wherein said legs each have a substantially identical cross sectional configuration, and the unsupported lengths of said body portions are of substantially equal length.
Claim 5
Dependent Claim
50 words
The cane construction of claim 1 including means to change the position of the handle means with respect to the support member to convert the cane from a right-handed to a left-handed cane or vice versa by reversing the positions of the front and rear portions of the support member.
Claim 6
Dependent Claim
39 words
The cane construction of claim 1 including resilient foot members secured to the lower ends of said foot portions, and said foot portions being shaped and positioned to maximize frictional contact between said foot members and a supporting surface.
Claim 7
Dependent Claim
26 words
The cane construction of claim 1 wherein said support means includes a plate which contacts said legs along the supported lengths of the body portions thereof.
Claim 8
Dependent Claim
26 words
The cane construction of claim 6 wherein said plate includes a flange, and said plate is connected to said support member by connection through said flange.
Claim 9
Dependent Claim
31 words
The cane construction of claim 6 wherein said plate has a trapezoidal configuration in which opposite sides of said trapezoid which face generally along said direction of movement are generally parallel.
Claim 10
Dependent Claim
161 words
A walking aid cane construction comprising: a support post having a lower end and an upper handle end, said handle being aligned in the direction of travel, four legs rigidly connected to said lower end; each of said legs having a body portion and a foot portion; the body portion of each leg being positioned generally transverse to said support post; the foot portion of each leg depending downwardly from the body portion of each leg; two of said legs being inner legs which are positioned adjacent one of the user's legs; two of said legs being outer legs which are positioned on the opposite side of the support post from the user's legs; the body portions of said outer legs being longer than the body portions of said inner legs, and the outer legs being positioned to provide greater resistance to tipping of the cane in the direction of the outer legs so as to prevent the user from falling.
Claim 11
Dependent Claim
161 words
A walking aid cane construction comprising: a support post having a lower end and an upper handle end, said handle being aligned in the direction of travel, four legs rigidly connected to said lower end; each of said legs having a body portion and a foot portion; the body portion of each leg being positioned generally transverse to said support post; the foot portion of each leg depending downwardly from the body portion of each leg; two of said legs being inner legs which are positioned adjacent one of the user's legs; two of said legs being outer legs which are positioned on the opposite side of the support post from the user's legs; the body portions of said outer legs being longer than the body portions of said inner legs, and the outer legs being positioned to provide greater resistance to tipping of the cane in the direction of the outer legs so as to prevent the user from falling.
Claim 12
Dependent Claim
54 words
The cane construction of claim 9 including handle means connected to the upper handle end of said support member, and means for vertically adjusting the position of the handle means relative to said support member with the handle means being adjustable downwardly to about the point of connection of said legs to said member.
Claim 13
Dependent Claim
39 words
The cane construction of claim 9 including resilient foot members secured to the lower ends of said foot portions, and said foot portions being shaped and positioned to maximize frictional contact between said foot members and a supporting surface.
Claim 14
Dependent Claim
18 words
The cane construction of claim 9 including means for generally equalizing the resistance of said legs to bending.
Claim 15
Dependent Claim
16 words
The cane construction of claim 12 wherein said legs and said means form an integral structure.
Claim 16
Dependent Claim
26 words
The cane construction of claim 12 wherein said means includes a plate which is secured to a supported length of the body portion of each leg.
Claim 17
Dependent Claim
13 words
The cane construction of claim 14 wherein said plate has a trapezoidal configuration.
Claim 18
Dependent Claim
23 words
The cane construction of claim 14 including a flange on said plate, and said plate being secured to said member through said flange.
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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) | 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 |