US3995002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthocasting system
Assignee: Northwest Podiatric Laboratories Inc
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Filing: 1974-11-07
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Granted: 1976-11-30
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Expires: 1994-11-07
Abstract
Abstract An orthocasting system for producing a negative mold of the bottom of the foot with the negative mold being used to produce a positive form which is then used as a base on which to form a rigid foot support insert which is constructed in accordance with a prescription prepared by a foot doctor.
Inventors
- 👤 Dennis N. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:39
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/28; B; B29; B29C; B29C33/00; B29C33/38; B29C33/3842; B29C33/3857; B29C33/3878; B29C2033/3871; B29L; B29L2031/00; B29L2031/753; B29L2031/7532; Y; Y10; Y10S; Y10S264/00; Y10S264/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
138 words
A method of forming a custom foot support appliance comprising the steps of applying a molding material to the sole of the foot, securing a suction hose to the upper surface of the foot, covering the molding material and the suction hose with an air tight bag secured in air tight relation to the ankle of the user, applying a vacuum to the air tight bag to draw the bag into tight contact with the molding material and the foot, manipulating the foot to produce the desired foot position for forming a mold of the bottom of the foot, permitting the molding material to harden to a mold out of contact with the foot, casting a positive mold of the bottom of the foot in said mold, and forming a rigid foot support appliance on said positive mold.
Claim 2
Independent Claim
138 words
A method of forming a custom foot support appliance comprising the steps of applying a molding material to the sole of the foot, securing a suction hose to the upper surface of the foot, covering the molding material and the suction hose with an air tight bag secured in air tight relation to the ankle of the user, applying a vacuum to the air tight bag to draw the bag into tight contact with the molding material and the foot, manipulating the foot to produce the desired foot position for forming a mold of the bottom of the foot, permitting the molding material to harden to a mold out of contact with the foot, casting a positive mold of the bottom of the foot in said mold, and forming a rigid foot support appliance on said positive mold.
Claim 3
Dependent Claim
35 words
A method as claimed in claim 1 including the step of inserting the foot covered with the air tight bag into a shoe prior to manipulation and hardening of the molding material to a mold.
Claim 4
Dependent Claim
26 words
A method as claimed in claim 2 including the steps of applying a plurality of splints to the bottom of the foot as the molding material.
Claim 5
Dependent Claim
29 words
The method of claim 1 including the application of a post to either the front or rear portion of said foot support to maintain the proper level of support.
References Cited (Backward Citations)
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Cited
US1647639A
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US2136815A
Cited
US2593742A
Cited
US3227795A
Cited
US3458898A
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US3398221A
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US3626954A
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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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |