US3633573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glide assembly
Assignee: Individual
•
Filing: 1969-08-07
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Granted: 1972-01-11
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Expires: 1989-08-07
Abstract
Abstract An assembly for permitting self-locomotion by the wearer of a walking-type leg cast by a sliding movement, rather than by walking. The assembly includes: a retainer of material of a high coefficient of friction, with at least one aperture, affixed to the foot-bottom of the leg cast; and at least one glide insert of material of a low coefficient of friction, configurated in the form of cylinders of different diameters, with the narrower diameter end inserted into the aperture and the wider diameter end protruding a short distance from the retainer.
Inventors
- 👤 Herbert G Lipson
- 👤 Bartholomew J Spada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:07
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/04; A61F5/05; A61F5/058; A61F13/00; A61F13/04; A61F13/041; A61F13/045; A61F2/00; A61F2/50; A61F2/60; A61F2/66
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
165 words
An orthopedic shoe, to encase a cast-bound foot, and to encase an injured foot when normal walking would be too much strain, comprising: a. a rubber sole having a raised heel portion said rubber sole having a plurality of apertures in the bottom thereof; b. a plurality of floor-engageable glide inserts, equal in number to the number of the aforesaid plurality of apertures, with each said glide insert of material having a low coefficient of friction, and with each said glide insert being configurated in the form of a cylinder of two diameters, the larger of which forms a wide bottom portion, and the narrower diameter portion forming the upper portion of said glide which is inserted wholly into an aperture of said plurality of apertures such that the wider diameter protrudes a short distance from the bottom of said rubber sole, said glide insert mating with and being removable from its aperture; and, means for selectively permitting insertion retension, and release of the foot.
Claim 2
Dependent Claim
165 words
An orthopedic shoe, to encase a cast-bound foot, and to encase an injured foot when normal walking would be too much strain, comprising: a. a rubber sole having a raised heel portion said rubber sole having a plurality of apertures in the bottom thereof; b. a plurality of floor-engageable glide inserts, equal in number to the number of the aforesaid plurality of apertures, with each said glide insert of material having a low coefficient of friction, and with each said glide insert being configurated in the form of a cylinder of two diameters, the larger of which forms a wide bottom portion, and the narrower diameter portion forming the upper portion of said glide which is inserted wholly into an aperture of said plurality of apertures such that the wider diameter protrudes a short distance from the bottom of said rubber sole, said glide insert mating with and being removable from its aperture; and, means for selectively permitting insertion retension, and release of the foot.
Claim 3
Dependent Claim
95 words
The assembly, as set forth in claim 1, wherein said means for attaching said components to a foot of a human wearer comprises a foot cast having a rigid shell of a shape to encompass at least a portion of a foot and having a foot-bottom, said foot-bottom being suitably configurated to accept and hold said assembly in such a manner that the lower surface of said component of a material of high coefficient of friction, and the protruding portion of said component of material of a low coefficient of friction, are exposed and floor-engageable.
Claim 4
Dependent Claim
169 words
An assembly for permitting self-locomotion by a wearer of a walking-type leg cast by a sliding movement, including: a. a leg cast having a rigid shell of a shape to encompass at least a portion of the lower portion of a leg and having a foot-bottom; b. at least one floor-engageable glide insert, of material of a low coefficient of friction, said insert having a shank portion and an enlarged head portion at one end; c. and, a retainer for said glide insert, of material of a high coefficient of friction, with said retainer having a bottom with at least one aperture, with the aperture configurated to accept and hold the shank of said glide insert; with said glide insert fitted into the aperture and having the head portion protruding a short distance from the bottom of said retainer, and with said retainer being affixed to the foot-bottom of the walking-type leg cast, with the bottom of said retainer and the protruding portion of said glide insert being floor-engageable.
Claim 5
Dependent Claim
169 words
An assembly for permitting self-locomotion by a wearer of a walking-type leg cast by a sliding movement, including: a. a leg cast having a rigid shell of a shape to encompass at least a portion of the lower portion of a leg and having a foot-bottom; b. at least one floor-engageable glide insert, of material of a low coefficient of friction, said insert having a shank portion and an enlarged head portion at one end; c. and, a retainer for said glide insert, of material of a high coefficient of friction, with said retainer having a bottom with at least one aperture, with the aperture configurated to accept and hold the shank of said glide insert; with said glide insert fitted into the aperture and having the head portion protruding a short distance from the bottom of said retainer, and with said retainer being affixed to the foot-bottom of the walking-type leg cast, with the bottom of said retainer and the protruding portion of said glide insert being floor-engageable.
Claim 6
Dependent Claim
15 words
The assembly, as set forth in claim 3, wherein said glide insert is of nylon
Claim 7
Dependent Claim
15 words
The assembly, as set forth in claim 3, wherein said glide insert is of teflon.
Claim 8
Dependent Claim
44 words
The assembly, as set forth in claim 3, wherein said glide insert is configurated in the form of a cylinder of two diameters, with the narrower diameter inserted wholly into the aperture and with the wider diameter at the bottom of said glide insert.
Claim 9
Dependent Claim
69 words
The assembly, as set forth in claim 3 wherein said glide insert is configurated in the form of a cylinder of three diameters, with the two wider diameters being at either end and the narrowest diameter being therebetween, and with one of the wider diameters and the narrowest diameter inserted wholly into the aperture and with the other of the wider diameters at the bottom of said glide insert.
Claim 10
Dependent Claim
19 words
The assembly, as set forth in claim 3, wherein said glide insert is flat-bottomed at the protruding portion thereof.
Claim 11
Dependent Claim
14 words
The assembly, as set forth in claim 3, wherein said retainer is of rubber.
Claim 12
Dependent Claim
16 words
The assembly, as set forth in claim 3, wherein the bottom of said retainer is serrated.
Claim 13
Dependent Claim
20 words
The assembly, as set forth in claim 3, wherein the bottom of said retainer is in form of a heel.
Claim 14
Dependent Claim
21 words
The assembly, as set forth in claim 3, wherein the bottom of said retainer is in the form of a sole.
Claim 15
Dependent Claim
108 words
A heel assembly for use with a walking-type leg cast, comprising: a. heel of a material having a high coefficient of friction, and heel having a flange at its top and having an aperture at its bottom, said flange being capable of being affixed to the bottom of a walking-type leg cast; b. and, a floor-engageable glide insert of material having a low coefficient of friction, with said glide having a bottom and, in relation to said bottom, a narrower shank upper portion adapted to mate with said aperture, and with said glide inserted into, and being removable from, said aperture at the bottom of said rubber heel.
Claim 16
Dependent Claim
108 words
A heel assembly for use with a walking-type leg cast, comprising: a. heel of a material having a high coefficient of friction, and heel having a flange at its top and having an aperture at its bottom, said flange being capable of being affixed to the bottom of a walking-type leg cast; b. and, a floor-engageable glide insert of material having a low coefficient of friction, with said glide having a bottom and, in relation to said bottom, a narrower shank upper portion adapted to mate with said aperture, and with said glide inserted into, and being removable from, said aperture at the bottom of said rubber heel.
Claim 17
Dependent Claim
17 words
A heel assembly, as set forth in claim 13, wherein said floor-engageable glide insert is of nylon.
Claim 18
Dependent Claim
17 words
A heel assembly, as set forth in claim 13, wherein said floor-engageable glide insert is of teflon.
Claim 19
Dependent Claim
56 words
A heel assembly, as set forth in claim 13, wherein said floor-engageable glide insert is configurated in the form of a cylinder of two diameters, with the narrower diameter inserted wholly into said aperture at the bottom of said heel, and with the wider diameter protruding a short distance from the said bottom of said heel.
Claim 20
Dependent Claim
145 words
A heel assembly for a walking-type leg cast, comprising: a. a walking-type leg cast having a rigid shell of a shape to encompass at least a portion of a leg and foot; b. rubber heel with a flanged top and an uneven bottom, with said bottom having a plurality of apertures therein, and with said flanged top affixed, and made integral, to the bottom of the foot portion of the walking-type leg cast; c. and, a plurality of floor-engageable glide inserts, equal in number to the number of the foresaid plurality of apertures, with each said glide insert of material having a low coefficient of friction, and with each said glide insert having a flat bottom and, in relation to said bottom, a narrower upper portion, and with each said glide insert inserted into, and removable from, an aperture of the aforesaid plurality of apertures.
Claim 21
Dependent Claim
145 words
A heel assembly for a walking-type leg cast, comprising: a. a walking-type leg cast having a rigid shell of a shape to encompass at least a portion of a leg and foot; b. rubber heel with a flanged top and an uneven bottom, with said bottom having a plurality of apertures therein, and with said flanged top affixed, and made integral, to the bottom of the foot portion of the walking-type leg cast; c. and, a plurality of floor-engageable glide inserts, equal in number to the number of the foresaid plurality of apertures, with each said glide insert of material having a low coefficient of friction, and with each said glide insert having a flat bottom and, in relation to said bottom, a narrower upper portion, and with each said glide insert inserted into, and removable from, an aperture of the aforesaid plurality of apertures.
Claim 22
Dependent Claim
21 words
A heel assembly, as set forth in claim 17, wherein each of said plurality of floor-engageable glide inserts is of nylon.
Claim 23
Dependent Claim
21 words
A heel assembly, as set forth in claim 17, wherein each of said plurality of floor-engageable glide inserts is of teflon.
Claim 24
Dependent Claim
62 words
A heel assembly, as set forth in claim 17, wherein each of said plurality of floor-engageable glide inserts is configurated in the form of a cylinder of two diameters, with the narrower diameter inserted wholly into an aperture of the aforesaid plurality of apertures, and with the wider diameter protruding a short distance from the said uneven bottom of said rubber heel.
Claim 25
Dependent Claim
153 words
A sole assembly for walking-type leg cast, comprising: a. a walking-type leg cast having a rigid shell adapted to encompass at least a portion of a leg and foot; b. a rubber sole with a flanged top and a plurality of apertures in the bottom, with said rubber sole built into, and made integral to, the bottom of the walking-type leg cast, but with the bottom of said rubber sole exposed and external of the bottom of the walking-type leg cast; c. and, a plurality of floor-engageable glide inserts, equal in number to the number of the aforesaid plurality of apertures, with each said glide insert of material having a low coefficient of friction, and with each said glide insert having a flat bottom and, in relation to said bottom, a narrower upper portion, and with each said glide insert inserted into, and removable from, an aperture of the aforesaid plurality of apertures.
Claim 26
Dependent Claim
153 words
A sole assembly for walking-type leg cast, comprising: a. a walking-type leg cast having a rigid shell adapted to encompass at least a portion of a leg and foot; b. a rubber sole with a flanged top and a plurality of apertures in the bottom, with said rubber sole built into, and made integral to, the bottom of the walking-type leg cast, but with the bottom of said rubber sole exposed and external of the bottom of the walking-type leg cast; c. and, a plurality of floor-engageable glide inserts, equal in number to the number of the aforesaid plurality of apertures, with each said glide insert of material having a low coefficient of friction, and with each said glide insert having a flat bottom and, in relation to said bottom, a narrower upper portion, and with each said glide insert inserted into, and removable from, an aperture of the aforesaid plurality of apertures.
Claim 27
Dependent Claim
21 words
A sole assembly, as set forth in claims 21, wherein each of said plurality of floor-engageable glide inserts is of nylon.
Claim 28
Dependent Claim
22 words
A sole assembly, as set forth in claim 21, wherein each of said plurality of floor engageable glide inserts is of teflon.
Claim 29
Dependent Claim
60 words
A sole assembly, as set forth in claim 21, wherein each of said plurality of floor-engageable glide inserts is configurated in the form of a cylinder of two diameters, with the narrower diameter inserted wholly into an aperture of the aforesaid plurality of apertures, and with the wider diameter protruding a short distance from the bottom of said rubber sole.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |