Patent US3619757A successfully refreshed from Google Patents.
US4128951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Custom-formed insert
Assignee: FALK CONSTRUCTION Inc
•
Filing: 1976-03-11
•
Granted: 1978-12-12
•
Expires: 1996-03-11
Abstract
Abstract A construction and method of forming shoe inserts in order to support the arch of the entire foot, in which a flexible container is filled with a formable material that is capable of curing at about room temperature to form an elastomeric material, the container is placed inside the shoe beneath the foot, and pressure is maintained on the foot while the formable material sets and hardens. The formable material may be provided by means of a catalyst-filled inner container with frangible walls which can be ruptured by applying pressure to the outer container, thereby to admix the catalyst with a curable elastomeric material which fills the rest of the outer container's volume.
Inventors
- 👤 Horace A. Tansill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
A ready-made shoe insert comprising: an outer container having flexible, generally parallel upper and lower walls; an inner container whose volume is small compared to the volume of said outer container, disposed within said outer container; a quantity of curable liquid elastomeric material filling the remaining interior of said outer container; a quantity of liquid catalyst filling said inner container; and said inner container being frangible whereby said outer container may be compressed in order to rupture said inner container without rupturing said outer container.
Claim 2
Dependent Claim
85 words
A ready-made shoe insert comprising: an outer container having flexible, generally parallel upper and lower walls; an inner container whose volume is small compared to the volume of said outer container, disposed within said outer container; a quantity of curable liquid elastomeric material filling the remaining interior of said outer container; a quantity of liquid catalyst filling said inner container; and said inner container being frangible whereby said outer container may be compressed in order to rupture said inner container without rupturing said outer container.
Claim 3
Dependent Claim
27 words
A shoe insert as in claim 1 wherein said upper wall of said outer container is shaped to approximately conform to the bottom of a person's foot.
Claim 4
Dependent Claim
115 words
An initially mobile means adapted to be applied to a surface in conformity thereto, and thereafter rendered relatively immobile, said means comprising: a. a first container having relatively uniform flexible walls; b. a second container having a frangible wall exposed to the interior of the first container; c. a first initially fluid reactant filling the first container and confronting the frangible wall of the second container; d. a second reactant filling the second container; e. said first container being initially distortable whereby said frangible wall of said second container may be ruptured, said first container thereupon being manipaltable to distribute said second reactant throughout said first reactant to form upon reaction a relatively immobile product.
Claim 5
Dependent Claim
115 words
An initially mobile means adapted to be applied to a surface in conformity thereto, and thereafter rendered relatively immobile, said means comprising: a. a first container having relatively uniform flexible walls; b. a second container having a frangible wall exposed to the interior of the first container; c. a first initially fluid reactant filling the first container and confronting the frangible wall of the second container; d. a second reactant filling the second container; e. said first container being initially distortable whereby said frangible wall of said second container may be ruptured, said first container thereupon being manipaltable to distribute said second reactant throughout said first reactant to form upon reaction a relatively immobile product.
Claim 6
Dependent Claim
29 words
A means, as defined in claim 3, wherein: said second container is of small volume with respect to said first container and is fully immersed in said first reactant.
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) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |