Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Leg – Extension
Reexamination Certificate
2000-12-18
2003-02-11
Snow, Bruce (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Leg
Extension
C482S075000
Reexamination Certificate
active
06517586
ABSTRACT:
BACKGROUND OF THE INVENTION
1) Field of the Invention
The invention herein relates to a support apparatus that addresses variances in the physical constitution of different work personnel by allowing adjustments for calf and sole length, morphology, and dimensions.
2) Description of the Related Art
U.S. Pat. No. 5,645,515 provides an elevated support apparatus that enables a person to undertake construction in high places; the structure, as indicated in
FIG. 1
, of the said support apparatus
1
is equipped with a shoe platform
11
and a floor platform
12
, and the shoe platform
11
and floor platform
12
are movably conjoined to a set of supports
13
; support mounts
131
,
132
, and
133
are maintained on a center rod
134
by elastic components
135
and
136
; a leg section support
14
is movably conjoined to one of the supports
13
by a fixing mount
15
, and a collar mount
16
couples the shoe platform
11
; the shoe platform
11
has disposed on it a toe strap
171
and an ankle strap
172
, and the leg section support
14
has disposed on it a calf support
18
and a calf strap
19
; during utilization, the soles of the feet are situated on the shoe platform
11
such that the calf is against the calf support
18
, following which the toe strap
171
, the ankle strap
172
, and then the calf strap
19
are tightened; however, relying on only a single support
13
easily leads to injury or instability; furthermore, since the calf support
18
on the support
13
is incapable of being adjusted for the differences in calf size among individuals, strapping to the calf support
18
could cause inconvenience or discomfort; when a rest break is taken and the apparatus has to worn once again, the location of the soles may change and the toe strap
171
, ankle strap
172
, and the calf strap
19
must be re-adjusted, a time-consuming task that is bothersome and impractical.
SUMMARY OF THE INVENTION
The objective of the invention herein is to provide an improved support apparatus comprised of a shoe platform and a floor platform, with the said shoe platform and floor platform movably conjoined, and retained by a sprung component, to a set of supports such that the leg section support is moved through the said axial hole, the extending locating mount is positioned into a mounting bracket at the side of the shoe platform, and the fastening component is inserted onto the mounting bracket and the locating mount to thereby appropriately position both the pivot sleeve and the leg section support on the mounting bracket; movably conjoined between the leg section supports is an adjustable calf harness consisting of two adjoined fittings; the said shoe platform includes a heel rest consisting of a stop mount and a slide mount having selectable position mounting holes; and disposed at the same time on the shoe platform are toe straps and ankle straps, with each having clasp mounts that are respectively positioned into the area of the shoe platform clasp slots, and the toe straps and ankle straps are inserted into a respective corresponding toe strap buckle and ankle strap buckle; and a strap fastener is situated on the toe strap buckle and ankle strap buckle and the said strap fasteners are similarly equipped with clasp mounts that are positioned into the clasp slot area of the shoe platform.
REFERENCES:
patent: 1905112 (1933-04-01), Lang
patent: 2057013 (1936-10-01), Curtis
patent: 3102272 (1963-09-01), Emmert
patent: 3346882 (1967-10-01), Wilhoyte
patent: 3626519 (1971-12-01), Baker
patent: 3902199 (1975-09-01), Emmert
patent: 5645515 (1997-07-01), Armstrong et al.
Bacon & Thomas PLLC
Snow Bruce
LandOfFree
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