Patent US3705934A successfully refreshed from Google Patents.
US3705934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the covering of moldable articles (in particular, the heels and soles of shoes) and mold for application of said method
Assignee: Individual
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Filing: 1969-07-14
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Granted: 1972-12-12
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Expires: 1989-07-14
Abstract
Abstract A method for the partial or total covering of any moldable article (particularly suitable for the heel and soles of shoes), characterized by the fact that the said covering is carried out during the molding, by placing the covering, which has previously been cut out or sliced off in the desired shape, against the surface of the mold, in areas corresponding to those of the molded piece that have to be covered, the limits of the said areas having been at least partly marked by protruding parts located on the walls of the mold itself.
Inventors
- 👤 Michele Giannini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:18
CPC Classifications
A; A43; A43B; A43B21/00; A43B13/00; B; B29; B29C; B29C33/00; B29C33/12; B29C33/14; B29D; B29D35/00; B29D35/12; B29D35/122; B29D35/124
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
167 words
A method of making the heel of a shoe comprising the steps of A. providing a mold having a cavity configured to produce the heel and including a curved vertically extending wall, B. inserting and fixing horizontally extending very thin blades in the curved vertically extending wall of the cavity, said blades following the curvature of the wall being vertically spaced and projecting into the cavity a small amount, C. placing a preformed covering material against the curved vertically extending wall of the cavity and abutting a continuous extent of both the upper edge and the lower edge of the material against the blades so as to be held in position thereby, D. injecting a plastic material into the cavity of the mold to press the preformed covering materiAl against the wall of the mold and to bond with the plastic, E. permitting the plastic material to harden and bond to the preformed cover and F. removing the injected molded heel with its cover from the mold.
Claim 2
Independent Claim
167 words
A method of making the heel of a shoe comprising the steps of A. providing a mold having a cavity configured to produce the heel and including a curved vertically extending wall, B. inserting and fixing horizontally extending very thin blades in the curved vertically extending wall of the cavity, said blades following the curvature of the wall being vertically spaced and projecting into the cavity a small amount, C. placing a preformed covering material against the curved vertically extending wall of the cavity and abutting a continuous extent of both the upper edge and the lower edge of the material against the blades so as to be held in position thereby, D. injecting a plastic material into the cavity of the mold to press the preformed covering materiAl against the wall of the mold and to bond with the plastic, E. permitting the plastic material to harden and bond to the preformed cover and F. removing the injected molded heel with its cover from the mold.
Claim 3
Dependent Claim
65 words
The method of claim 1, in which the step of inserting and fixing the very thin blades in the mold includes A. forming a groove in the vertically extending wall of the cavity, B. placing a said blade in the groove and against the bottom side wall of the groove and C. snugly fitting a member into the groove to hold the blade in place.
Claim 4
Dependent Claim
76 words
The method of claim 2, further including the steps of A. placing a preliminary blade and said member into the groove, B. machining the wall of the mold in which the blade is located to final dimensions, C. removing the member and preliminary blade from the groove, D. making a new blade of the desired lateral dimension using the preliminary blade as a model and E. inserting the new blade and the member into the groove.
References Cited (Backward Citations)
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US1860158A
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US2006377A
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US3421183A
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US3513050A
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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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |