US4141375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knee crutch-cane
Assignee: Individual
•
Filing: 1978-02-03
•
Granted: 1979-02-27
•
Expires: 1998-02-03
Abstract
Abstract An upright is provided including upper and lower ends and the lower end of the upright includes a foot for frictionally gripping an upwardly facing support surface. The upper end of the upright defines a pair of horizontally spaced apart opposite side portions between which a horizontal upwardly opening cradle is supported for angular adjustment about an axis extending transversely of the cradle and between the opposite side portions. One of the opposite side portions includes a cane handle supported therefrom for angular displacement about its longitudinal axis and projecting above the cradle and one end of the cradle includes an outwardly convex end wall while the other end of the cradle is open and includes an endwise outwardly projecting support arm from whose outer end a second upwardly opening cradle is supported.
Inventors
- 👤 Leonard M. Tykwinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:27
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/0102; A61F5/0104; A61F5/0106; A61H; A61H3/00; A61H3/02; A61H3/0288; A61H2003/005; A61H2003/0294; A61H2201/00; A61H2201/01; A61H2201/0161
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
144 words
A crutch cane including an upright having upper and lower ends, the lower end of said upright including end means for frictionally engaging an upwardly facing support surface, an upwardly opening knee and lower leg receiving cradle support from said upright spaced above said lower end, the upper end of said upright including a horizontal hand grip, said cradle defining an elongated generally horizontal upwardly opening trough, one end of said cradle including an outwardly convex end wall closing the corresponding end of said trough, wherein said upright including horizontal spaced apart upright portions between which said cradle is disposed, and an adjustable length, elongated, horizontal and longitudinal edge upstanding wide strap assembly extending loosely between said spaced apart upright portions spaced above one end of said cradle and longitudinally bowed with its convex side facing outwardly of said one end of said cradle.
Claim 2
Dependent Claim
144 words
A crutch cane including an upright having upper and lower ends, the lower end of said upright including end means for frictionally engaging an upwardly facing support surface, an upwardly opening knee and lower leg receiving cradle support from said upright spaced above said lower end, the upper end of said upright including a horizontal hand grip, said cradle defining an elongated generally horizontal upwardly opening trough, one end of said cradle including an outwardly convex end wall closing the corresponding end of said trough, wherein said upright including horizontal spaced apart upright portions between which said cradle is disposed, and an adjustable length, elongated, horizontal and longitudinal edge upstanding wide strap assembly extending loosely between said spaced apart upright portions spaced above one end of said cradle and longitudinally bowed with its convex side facing outwardly of said one end of said cradle.
Claim 3
Dependent Claim
85 words
A crutch cane including an upright having upper and lower ends, the lower end of said upright including end means for frictionally engaging an upwardly facing support surface, an upwardly opening knee and lower leg receiving cradle supported from said upright spaced above said lower end, the upper end of said upright including a horizontal hand grip, said upright and hand grip including coacting mounting means supporting said hand grip from said upright for angular displacement relative thereto about an axis generally paralleling said upright.
Claim 4
Dependent Claim
85 words
A crutch cane including an upright having upper and lower ends, the lower end of said upright including end means for frictionally engaging an upwardly facing support surface, an upwardly opening knee and lower leg receiving cradle supported from said upright spaced above said lower end, the upper end of said upright including a horizontal hand grip, said upright and hand grip including coacting mounting means supporting said hand grip from said upright for angular displacement relative thereto about an axis generally paralleling said upright.
Claim 5
Dependent Claim
25 words
The combination of claim 2 wherein said coacting mounting means also includes means supporting said hand grip from said upright for vertical shifting relative thereto.
Claim 6
Dependent Claim
36 words
The combination of claim 3 wherein the last mentioned means includes means operative to progressively yieldingly resist downward shifting of said hand grip relative to said upright toward a lower limit position of said hand grip.
Claim 7
Dependent Claim
27 words
The combination of claim 3 wherein the last mentioned means includes means operative to progressively yieldingly resist upward shifting of said hand grip relative to said upright.
Claim 8
Dependent Claim
49 words
The combination of claim 3 wherein the last mentioned means includes means operative to progressively yieldingly resist upward shifting of said hand grip relative to said upright, and means operative downward shifting of said hand grip relative to said upright toward a lower limit position of said hand grip.
Claim 9
Dependent Claim
15 words
The combination of claim 2 wherein said end means includes a vertically adjustable foot member.
Claim 10
Dependent Claim
15 words
The combination of claim 7 wherein said foot member is threadedly supported for said upright.
Claim 11
Dependent Claim
23 words
The combination of claim 8 wherein said foot member includes a non-slip cup shaped tip removably telescoped upwardly over the lower end thereof.
Claim 12
Dependent Claim
38 words
The combination of claim 8 wherein said foot member includes an upstanding threaded support shank threadedly engaged with said upright, the lower end of said support shank including a diametrically enlarged load bearing pad assembly universally supported therefrom.
Claim 13
Dependent Claim
25 words
The combination of claim 10 wherein said pad assembly includes a large plan area downwardly facing abutment surface and a non-slip panel removably supported thereunder.
Claim 14
Dependent Claim
94 words
A crutch cane including an upright having upper and lower ends, the lower end of said upright including end means for frictionally gripping an upwardly facing support surface, an upwardly opening knee and lower leg receiving cradle supported from said upright spaced above said lower end, the upper end of said upright including a horizontal hand grip, said cradle and upright including coacting support means mounting said cradle on said upright for selective angular displacement relative thereto about a horizontal axis, said cradle defining an elongated trough extending transversely of the last mentioned axis.
Claim 15
Dependent Claim
94 words
A crutch cane including an upright having upper and lower ends, the lower end of said upright including end means for frictionally gripping an upwardly facing support surface, an upwardly opening knee and lower leg receiving cradle supported from said upright spaced above said lower end, the upper end of said upright including a horizontal hand grip, said cradle and upright including coacting support means mounting said cradle on said upright for selective angular displacement relative thereto about a horizontal axis, said cradle defining an elongated trough extending transversely of the last mentioned axis.
Claim 16
Dependent Claim
34 words
The combination of claim 12 wherein said upright and hand grip include coacting mounting means supporting said hand grip and said upright for angular displacement relative thereto about an axis generally paralleling said upright.
Claim 17
Dependent Claim
24 words
The combination of claim 12 wherein one end of said cradle includes an outwardly convex end wall closing the corresponding end of said trough.
Claim 18
Dependent Claim
64 words
The combination of claim 14 wherein said upright includes horizontally spaced apart upright portions between which said cradle is disposed, and an adjustable length, elongated, horizontal and longitudinal edge upstanding wide strap assembly extending loosely between said spaced apart upright portions spaced above one end of said cradle and longitudinally bowed with its convex side facing outwardly of said one end of said cradle.
Claim 19
Dependent Claim
33 words
The combination of claim 15 wherein said cradle end wall closing said one cradle end conforms, generally, to the radius of curvature of said strap assembly and is vertically registered beneath the latter.
Claim 20
Dependent Claim
34 words
The combination of claim 16 wherein said upright and hand grip include coacting mounting means supporting said hand grip from said upright for angular displacement relative thereto about an axis generally paralleling said upright.
Claim 21
Dependent Claim
25 words
The combination of claim 17 wherein said coacting mounting means also includes means supporting said hand grip from said upright for vertical shifting relative thereto.
Claim 22
Dependent Claim
92 words
A crutch-cane including an upright having upper and lower ends, the lower end of said upright including end means for frictionally gripping an upwardly facing support surface, an upwardly opening knee and lower leg receiving cradle supported from said upright spaced above said lower end, the upper end of said upright including a hand grip, said cradle and upright including coacting support means mounting said cradle on said upright for selective angular displacement relative thereto about a horizontal axis, said cradle defining an elongated trough extending transversely of the last mentioned axis.
Claim 23
Dependent Claim
92 words
A crutch-cane including an upright having upper and lower ends, the lower end of said upright including end means for frictionally gripping an upwardly facing support surface, an upwardly opening knee and lower leg receiving cradle supported from said upright spaced above said lower end, the upper end of said upright including a hand grip, said cradle and upright including coacting support means mounting said cradle on said upright for selective angular displacement relative thereto about a horizontal axis, said cradle defining an elongated trough extending transversely of the last mentioned axis.
Claim 24
Dependent Claim
29 words
The combination of claim 19 wherein said coacting support means also includes means operative to releasably secure said cradle in selected angularly displaced position relative to said horizontal axis.
Claim 25
Dependent Claim
56 words
The combination of claim 19 wherein said upright and hand grip include coacting mounting means supporting said hand grip from said upright for angular displacement relative thereto about an axis generally paralleling said upright, said coacting mounting means also including means operative to releasably retain said hand grip in adjusted angular position relative to said upright.
Claim 26
Dependent Claim
52 words
The combination of claim 19 wherein one end of said cradle including an outwardly convex end wall closing the corresponding end of said trough, the other end of said cradle being open and including an endwise outwardly projecting support arm, the outer end of said arm including a second upwardly opening cradle.
Claim 27
Dependent Claim
26 words
The combination of claim 22 wherein said second cradle and arm include coacting means supporting said second cradle from said arm for vertical adjustment relative thereto.
Claim 28
Dependent Claim
39 words
The combination of claim 23 wherein the last mentioned coacting means includes means establishing upper and lower limits of shifting of said second cradle relative to said arm and means yieldingly biasing said second cradle toward said upper limit.
Claim 29
Dependent Claim
34 words
The combination of claim 24 wherein said upright and hand grip include coacting mounting means supporting said hand grip from said upright for angular displacement relative thereto about an axis generally paralleling said upright.
Claim 30
Dependent Claim
64 words
The combination of claim 24 wherein said upright includes horizontally spaced apart upright portions between which said cradle is disposed, and an adjustable length, elongated, horizontal and longitudinal edge upstanding wide strap assembly extending loosely between said spaced apart upright portions spaced above one end of said cradle and longitudinally bowed with its convex side facing outwardly of said one end of said cradle.
Claim 31
Dependent Claim
40 words
The combination of claim 26 wherein one end of said cradle including an outwardly convex end wall closing said one cradle end and conforming, generally, to the radius of curvature of said strap assembly and vertically registered beneath the latter.
Claim 32
Dependent Claim
53 words
The combination of claim 26 wherein said upright and hand grip include coacting mounting means supporting said hand grip from said upright for angular displacement relative thereto about an axis generally paralleling said upright, said coacting mounting means also including means supporting said hand grip from said upright for vertical shifting relative thereto.
Claim 33
Dependent Claim
36 words
The combination of claim 28 wherein the last mentioned means includes means operative to progressively yieldingly resist downward shifting of said hand grip relative to said upright toward a lower limit position of said hand grip.
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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) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |