US4211019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accommodative foot bed
Assignee: Orthopedic Contour Systems Inc
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Filing: 1978-11-08
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Granted: 1980-07-08
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Expires: 1998-11-08
Abstract
Abstract A flexible bladder, shaped as an innersole, is filled with uncured resin. An individual's foot is held atop the bladder under load while the resin is allowed to cure, thereby forming a custom-fit accommodative foot bed.
Inventors
- 👤 Donald F. McCafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:56
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/28
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
166 words
An accommodative foot bed system, comprising: a flexible bladder configurated as an innersole with an injection port on one edge; a resin pack including: a pair of storage chambers for containing respective components of a two component plastic resin system; a flexible mixing chamber associated with said storage chambers constituting means for receiving the components from said storage chambers for mixing to produce an uncured filling material; removable barrier means arranged to isolate said components from each other when in place and to permit passage of said components into said mixing chamber when removed; discharge means associated with said mixing chamber for ejecting said filling material from said mixing chamber; and sealing means associated with said discharge means; and means cooperatively adapted between said injection port and said discharge means to effect a connection between said discharge means and said injection port so that said filling material may be injected into the interior of said bladder from said mixing chamber when said sealing means is removed.
Claim 2
Dependent Claim
166 words
An accommodative foot bed system, comprising: a flexible bladder configurated as an innersole with an injection port on one edge; a resin pack including: a pair of storage chambers for containing respective components of a two component plastic resin system; a flexible mixing chamber associated with said storage chambers constituting means for receiving the components from said storage chambers for mixing to produce an uncured filling material; removable barrier means arranged to isolate said components from each other when in place and to permit passage of said components into said mixing chamber when removed; discharge means associated with said mixing chamber for ejecting said filling material from said mixing chamber; and sealing means associated with said discharge means; and means cooperatively adapted between said injection port and said discharge means to effect a connection between said discharge means and said injection port so that said filling material may be injected into the interior of said bladder from said mixing chamber when said sealing means is removed.
Claim 3
Dependent Claim
83 words
An accommodative foot bed system according to claim 1 wherein said bladder includes a first layer of flexible sheet material and a second layer of flexible sheet material congruent with and overlapping said first layer, both said layers being configurated as an innersole with an extension from the instep portion thereof, sealed together around their perimeters to constitute said bladder, including a cavity defined by said layers, with a flexible tube extending from open communication with said cavity through said injection port. PG,11
Claim 4
Dependent Claim
46 words
An accommodative foot bed system according to claim 2 wherein said flexible tube has a restricted neck portion and said discharge means has an enlarged nozzle portion adapted to effect a plug connection with said tube, whereby said nozzle is locked in place by said neck.
Claim 5
Dependent Claim
46 words
An accommodative foot bed system according to claim 3 wherein said flexible tube has a restricted neck portion and said discharge means has an enlarged nozzle portion adapted to effect a plug connection with said tube, whereby said nozzle is locked in place by said neck.
Claim 6
Dependent Claim
72 words
An accommodative foot bed system according to claim 2 wherein the cavity between said layers is configurated to prevent flow of resin in the region of the bladder corresponding with the toe area of a foot placed atop said bladder in the normal position of use, but to permit flow of resin in the region of the bladder corresponding with the medial arch, heel perimeter and metatarsal head areas of said foot.
Claim 7
Dependent Claim
26 words
An accommodative foot bed system according to claim 5 wherein said filling material is curable into a polyurethane having a durometer rating within the orthotic range.
Claim 8
Dependent Claim
27 words
An accommodative foot bed system according to claim 6 wherein said polyurethane is curable to a Shore A durometer rating of between about 20 to about 50.
Claim 9
Dependent Claim
223 words
An accommodative foot bed system comprising a flexible bladder constructed of a first layer of flexible transparent sheet material and a second layer of flexible sheet material congruent with and overlapping said first layer, both said layers being configurated as an innersole with an extension from the instep portions thereof, sealed together around their perimeters to constitute said bladder, including a cavity defined by said layers with a flexible tube extending from open communication with said cavity; a resin pack including: a pair of storage chambers for containing respective components of a two component plastic resin system; a flexible mixing chamber associated with said storage chambers constituting means for receiving the components from said storage chambers for mixing to produce an uncured filling material; removable barrier means arranged to isolate said components from each other when in place and to permit passage of said components into said mixing chamber when removed; discharge means associated with said mixing chamber for ejecting said filling material from said mixing chamber; and sealing means associated with said discharge means; and means cooperatively adapted between said flexible tube and said discharge means to effect a connection between said discharge means and said flexible tube so that said filling material may be injected into the interior of said bladder from said mixing chamber when said sealing means is removed.
Claim 10
Dependent Claim
223 words
An accommodative foot bed system comprising a flexible bladder constructed of a first layer of flexible transparent sheet material and a second layer of flexible sheet material congruent with and overlapping said first layer, both said layers being configurated as an innersole with an extension from the instep portions thereof, sealed together around their perimeters to constitute said bladder, including a cavity defined by said layers with a flexible tube extending from open communication with said cavity; a resin pack including: a pair of storage chambers for containing respective components of a two component plastic resin system; a flexible mixing chamber associated with said storage chambers constituting means for receiving the components from said storage chambers for mixing to produce an uncured filling material; removable barrier means arranged to isolate said components from each other when in place and to permit passage of said components into said mixing chamber when removed; discharge means associated with said mixing chamber for ejecting said filling material from said mixing chamber; and sealing means associated with said discharge means; and means cooperatively adapted between said flexible tube and said discharge means to effect a connection between said discharge means and said flexible tube so that said filling material may be injected into the interior of said bladder from said mixing chamber when said sealing means is removed.
Claim 11
Dependent Claim
24 words
An accommodative foot bed system according to claim 8 wherein the outside surface of said second layer is provided with a suede surface texture.
Claim 12
Dependent Claim
42 words
An accommodative foot bed system according to claim 8 wherein the components contained within the respective said storage chambers are individually colored so that when they are mixed in said mixing chamber, the resulting uncurred filling material assumes a characteristic third color.
Claim 13
Dependent Claim
41 words
An accommodative foot bed system according to claim 10 wherein one of said components is colored yellow and the other of said components is colored blue so that adequate mixing is indicated when the reaction mass achieves a uniform green color.
Claim 14
Dependent Claim
32 words
An accommodative foot bed system according to claim 8 wherein said filling material is curable into a polyurethane foam having a Shore D durometer rating of between about 20 to about 50.
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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) | 1983-07-08 | 1984-01-07 | 1984-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-08 | 1988-01-07 | 1988-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-08 | 1992-01-07 | 1992-07-08 | $7700.00 | Window Closed / Lapsed |